WO2023111008A2

WO2023111008A2 - Fragranced aqueous composition comprising at least two surfactants, at least one fragrancing substance and at least one diol

Info

Publication number: WO2023111008A2
Application number: PCT/EP2022/085835
Authority: WO
Inventors: Christine Noel; Véronique PERRAULT
Original assignee: L’Oreal
Priority date: 2021-12-16
Filing date: 2022-12-14
Publication date: 2023-06-22
Also published as: WO2023111008A3; FR3130600A1

Abstract

The present invention relates to an aqueous fragranced composition comprising: a) at least one non-ionic surfactant chosen from C₆-C₁₀ alkyl poly glucosides; b) at least one additional surfactant, different from the non-ionic surfactant a); c) at least one fragrancing substance; and d) at least one diol; the weight ratio of surfactant(s) a) / fragrancing substance(s) c) being between 0.1 and 2; and the composition comprising an ethanol content of less than or equal to 2% by weight, relative to the total weight of the composition.

Description

Title: Fragranced aqueous composition comprising at least two surfactants, at least one fragrancing substance and at least one diol

Technical field

The present invention is directed towards proposing a novel fragranced cosmetic composition, for the field of fragrancing keratin materials and/or clothing, but also for the cosmetic care or treatment of keratin materials.

Prior art

In general, the formulation of environmentally friendly cosmetic products has become a major challenge for meeting new consumer expectations, in particular regarding natural and/or eco-friendly products, i.e., products whose design and development take into account their environmental impacts.

It is thus common practice to seek to replace synthetic compounds present in cosmetic compositions with natural ingredients and/or ingredients of natural origin.

These environmental problems concern all cosmetic products, notably fragranced compositions.

It is known that a perfume is a combination of different odoriferous substances that evaporate at different periods. Each perfume has what is known as a “head note”, which is the odour that diffuses first when the perfume is applied or when the receptacle containing it is opened, a “heart or body note”, which corresponds to the full fragrance (given off for a few hours after the “head note”) and a “base note”, which is the most persistent odour (given off for several hours after the “heart note”). The persistence of the base note corresponds to the remanence of the perfume.

Human beings have always sought to perfume themselves and to perfume the objects surrounding them or their environments, both to mask strong and/or unpleasant odours and to give a nice odour.

It is common practice to incorporate perfume into a certain number of products or compositions, in particular cosmetic and dermatological compositions such as eaux fraiches, eaux de toilette, eaux de parfum, aftershave lotions, care fluids or eaux de Cologne. A perfume or fragrancing composition must be stable and must have a pleasant odour. They must be resistant to different attacking factors such as light and temperature differences.

Moreover, transparency or translucency is a particularly sought-after and appreciated effect which corresponds to a current trend, also applicable to fragrancing compositions.

Thus, consumers are in search of completely transparent fragrancing compositions.

The difficulty to be solved to answer this need is to prepare a composition with a high concentration of perfume or aroma, and to do so without affecting the transparency of the composition, the incorporation of a perfume in a relatively substantial amount generally resulting in an opaque product.

Moreover, besides, a problem specific to the field of fragrancing compositions is that of the typical presence of alcohol.

Indeed, in the preparation of fragrancing compositions such as perfumes or eaux de toilette, the use of ethanol as solvent is very widespread. Ethanol correctly dissolves the fragrancing ingredients used by the perfumer. It is a very good solvent which evaporates quickly thus giving a feeling of freshness. Ethanol also has the advantage of being inexpensive and of enabling the formulation of transparent compositions.

For such reasons, the majority of the fragrancing compositions on the market contain ethanol, generally present in large contents.

However, the international market is currently undergoing a trend towards ethanol-free perfumes, with a consumer preference for ethanol-free products intended for sensitive skin and enabling risk-free use.

Indeed, the presence of ethanol makes fragrancing compositions irritant to the skin and tends to dry it out.

In addition, ethanol has appreciable volatility, and it is thus desirable to obtain fragrancing compositions with a very low ethanol content, or even none at all.

Disclosure of the invention

There is thus still a need for novel transparent fragranced formulations, notably aqueous formulations, which are ethanol-free, containing essentially natural products and/or products of natural origin, and which remain stable and homogeneous over time and under the effects of light and temperature. In particular, the need remains for such fragranced cosmetic compositions, for which the evolution of the organoleptic properties, namely the odour and/or the colour, is controlled over time.

There is also a need to increase the persistence of such fragrancing compositions on keratin materials without the perfume degrading, in particular on contact with the other constituents of the composition. In addition, it is interesting to provide consumers with fragrancing formulas which do foam very much or not at all, despite the use of surfactant, and which are visually appealing.

There is also still a need for such compositions which provide softness and moisturization when applied to keratin materials, notably the skin.

Finally, there is also still a need for fragrancing compositions that are compatible with the current consumer demands, notably regarding the environment.

The present invention is specifically directed towards meeting these needs.

Summary of the invention

Thus, according to a first of its aspects, the present invention relates to an aqueous fragranced composition, notably a cosmetic composition, comprising:

- a) at least one non-ionic surfactant chosen from Ce-Cio alkyl polyglucosides;

- b) at least one additional surfactant, different from the non-ionic surfactant a), preferably chosen from non-ionic and/or anionic surfactants;

- c) at least one fragrancing substance; and

- d) at least one diol; it being understood that: the weight ratio of surfactant(s) a) to fragrance substance(s) c) is between 0.1 and 2; and the composition has an ethanol content of less than or equal to 2% by weight relative to the total weight of the composition.

Preferably, in a composition according to the invention, the surfactant(s) a) / fragrancing substance(s) c) weight ratio is between 0.2 and 1.5, and preferably between 0.3 and 1.

Preferably, the ethanol content in the composition is less than or equal to 1% by weight, more particularly less than or equal to 0.5% by weight, relative to the total weight of the composition; preferably, the composition is ethanol-free. The inventors have found, surprisingly, that the combination of at least one specific nonionic surfactant with fragrancing substances in a particular ratio, and with at least one diol, makes it possible to obtain a homogeneous and stable transparent fragranced cosmetic composition, and to do so even in the presence of a high content of fragrancing substances, which do not degrade over time.

The presence of an additional surfactant different from the specific surfactant mentioned above makes it possible to formulate such fragrancing compositions whose organoleptic properties are further improved, in particular whose colour degrades less over time, whose perfume left after application is more intense and whose foaming character is reduced.

The fragranced composition according to the invention also affords moisturization and a soft feeling, and does not require the presence of ethanol.

Preferably, a composition according to the invention comprises at least 90% by weight of natural compounds or compounds of natural origin, in particular at least 95% by weight, preferably at least 98% by weight, and more preferentially at least 99% by weight, relative to the total weight of the composition.

Preferably, a composition according to the invention is transparent.

A composition according to the invention is in particular intended for the cosmetic treatment of keratin materials.

Thus, according to another of its aspects, the invention relates to a cosmetic process for treating keratin materials, in particular the skin, comprising at least one step of applying a composition according to the invention to said keratin materials.

The invention also relates to a cosmetic process for treating keratin materials, in particular the skin, or clothing, comprising at least one step of applying a fragranced composition according to the invention to said keratin materials and/or said clothing.

It is understood that the cosmetic treatment processes targeted in the present patent application are non-therapeutic.

A composition according to the invention is notably intended to be used in order to fragrance keratin materials and/or clothing.

Thus, according to another of its aspects, the invention also relates to a process for fragrancing keratin materials, notably the skin, and/or clothing, preferably the skin, comprising the application of the composition as defined above to said keratin materials and/or to said clothing. Preferably, the composition may be applied by spraying, notably using a spray.

Definitions

In the context of the present invention, and unless otherwise indicated, the following definitions apply:

For the purposes of the present invention, the term “natural” is intended to denote a compound or extract obtained directly from the earth or the soil, or from plants or animals, via, where appropriate, one or more physical processes, for instance milling, refining, distillation, purification or filtration, or else from a biotechnological process, notably obtained from microbiological or cell cultures, for example from fungi or from bacteria. The “natural” compounds include compounds that are present in nature and that can be reproduced by chemical (semi)synthesis.

For the purposes of the present invention, the term “ of natural origin” is intended to denote any compound obtained from a natural substance which has undergone one or more associated chemical or industrial treatments, giving rise to changes which do not affect the essential qualities of this substance. As non-limiting examples of additional chemical or industrial treatments bringing about modifications which do not affect the essential qualities of a natural compound, mention may be made of those permitted by the controlling bodies, such as Ecocert (Reference system for biological and ecological cosmetic products, January 2003), or defined in recognized handbooks in the field, such as “Cosmetics and Toiletries Magazine”, 2005, volume 120, 9:10.

According to the invention, a compound is considered to be natural or of natural origin when it is predominantly composed of natural constituents, i.e. when the weight ratio of natural constituents to non-natural constituents which make up the compound is greater than 1.

For the purposes of the present invention, the term “fragranced composition” or 'fragrancing composition” or “perfume” is intended to denote any composition which leaves a perfume on keratin materials after application.

For the purposes of the present invention, the term “fragrancing substance” means any perfume, odorous starting material or aroma that is capable of giving off a pleasant odour, in particular as defined in the continuation of the text. For the purposes of the present invention, “fragrancing” , “odorous” or “odoriferous” substances are synonymous. For the purposes of the present invention, the term “keratin materials” is notably intended to denote the skin, the lips, the hair, the scalp, the eyelashes and the eyebrows or else the nails, in particular the skin and/or the lips, and preferably the skin.

For the purposes of the present invention, the term “clear" or “transparent” means that the composition is transparent, i.e. it allows light to pass through and objects that are located behind it are seen in sharp definition.

In particular, to evaluate the transparency of a composition according to the invention, a conventional commercial untinted, transparent borosilicate, soda-lime or neutral glass test tube such as a test tube made of Pyrex® or Duran® glass, 16 cm tall and 1.6 cm in diameter is taken and is filled to 14 cm of said tube (the bottom of the meniscus of the composition in the tube is located 14 cm from the bottom of the tube), and a page of published international patent application (in A4 format) is placed behind it at a distance of 1 cm; and by placing the eyes at a distance (reading focal length relative to the test tube) of between 20 cm and 40 cm, such as 30 cm, and perpendicular to the middle of the composition of said tube (about 7 cm from the bottom of said tube), an evaluation is made as to whether or not it is possible to read distinctly said page of the published international patent application, notably the first page, through the composition in said tube. It is understood that the tester has good vision, or that he is equipped with spectacles, contact lenses or any other optical devices that he normally wears for reading. Use may be made, for example, of patent application WO 2018/104 428 and evaluate the sharpness, i.e. the ability to read the 31 lines of page 13 to perform the test or, better still, to perform the reading test on the first page.

A composition according to the invention is generally suitable for application to keratin materials, in particular topical application to the skin, and thus generally comprises a physiologically acceptable medium, i.e. a medium that is compatible with the skin.

It is preferably a cosmetically acceptable medium, i.e. a medium which has a pleasant colour, odour and feel and which does not cause any unacceptable discomfort, i.e. stinging, tautness or redness, liable to discourage the user from applying this composition.

The term “(C_x-C_z)alkyl group” means a linear or branched hydrocarbon-based chain comprising from x to z carbon atoms. For example, a (Ci-Ce)alkyl group represents a linear or branched hydrocarbon-based chain comprising from 1 to 6 carbon atoms.

The term “at least one” is equivalent to “one or more”. The expressions “between... and...", “comprises from ... to...”, “formed from ... to...” and “ranging from... to...” should be understood as being inclusive of the limits, unless otherwise specified.

Other features, variants and advantages of the compositions according to the invention will emerge more clearly on reading the description and the examples that follow.

Detailed description a) Ce-Cio alkyl polyglucoside

As mentioned previously, a fragranced composition according to the invention comprises at least one Ce-Cio alkyl polyglucoside as non-ionic surfactant a).

Alkyl polyglucosides, also known as alkylpolyglucosides (APG), are known as non-ionic surfactants.

These are compounds whose chemical structure is generally represented as follows: [Chem 1]

The hydrophilic group (glucoside) preferably comprises 1 to 4 saccharide units and the hydrophobic group (alkyl) may comprise 6 to 30 carbon atoms. The alkyl group may be linear as shown above or branched.

As mentioned previously, a cosmetic composition according to the invention comprises at least one Ce-Cio alkyl polyglucoside.

Preferably, the Ce-Cio alkyl poly glucoside comprises 1, 2 to 3 saccharide units.

The linear or branched alkyl group comprises between 6 and 10 carbon atoms, preferably 8 carbon atoms.

It may be a single Ce-Cio alkyl polyglucoside or a mixture of several Ce-Cio alkyl polyglucosides.

As C₆-Cio alkyl polyglucoside that is particularly suitable for use in the invention, mention may be made of caprylyl/capryl glucoside, such as the product sold under the name Plantacare 810 UP® by the company BASF, or under the name Oramix CG 110® by the company SEPPIC.

According to a preferred embodiment, a composition according to the invention comprises a mixture of Cs and Cio alkyl glucosides, such as the 50/50 mixture by weight of caprylyl/capryl glucoside, such as those sold by the company SEPPIC under the name Oramix CG 110L.

The C₆-Cio alkyl polyglucoside(s) may be present in a composition according to the invention in a content ranging from 0.5% to 18% by weight, in particular from 1% to 15% by weight, preferably from 2% to 12% by weight, relative to the total weight of the composition. b) Additional surfactant

As mentioned previously, a composition according to the invention also comprises at least one additional surfactant, different from the surfactant(s) a), preferably chosen from nonionic or anionic surfactants.

A fragranced composition according to the invention may thus comprise one or more additional anionic, cationic, non-ionic, zwitterionic or amphoteric surfactants.

Reference may be made to the Kirk-Othmer Encyclopedia of Chemical Technology, volume 22, pages 333-432, 3rd Edition, 1979, Wiley, for the definition of the emulsifying properties and functions of surfactants, in particular pages 347-377 of this reference, for anionic, amphoteric and non-ionic surfactants.

As non-ionic surfactants, mention may be made, for example, of those chosen from alkyl and polyalkyl esters of poly(ethylene oxide), oxyalkylenated alcohols, alkyl and polyalkyl ethers of poly (ethylene oxide), optionally polyoxyethylenated alkyl and poly alkyl esters of sorbitan, optionally polyoxyethylenated alkyl and polyalkyl ethers of sorbitan, in particular alkyl and polyalkyl esters of sucrose, optionally polyoxyethylenated alkyl and polyalkyl esters of glycerol, and optionally polyoxyethylenated alkyl and polyalkyl ethers of glycerol, gemini surfactants, cetyl alcohol, stearyl alcohol, and mixtures thereof.

As anionic surfactants, mention may be made, for example, of those chosen from acylglutamates, alkyl ether sulfates, carboxylates, amino acid derivatives, sulfonates, isethionates, taurates, sulfosuccinates, alkylsulfoacetates, phosphates and alkyl phosphates, polypeptides, metal salts of C10-C30 and notably C16-C25 fatty acids, in particular metal stearates and behenates, and mixtures thereof.

A composition according to the invention more particularly comprises one or more anionic surfactants in a content ranging from 0.01% to 5% by weight, preferably from 0.1% to 5% by weight and preferentially from 0.5% to 2% by weight, relative to the total weight of the composition.

Preferably the anionic surfactant content is less than 2% by weight, in particular less than or equal to 1% by weight, for example between 0.01% and 1% by weight, or between 0.01% and 0.5% by weight, relative to the total weight of the composition.

Advantageously, a composition according to the invention does not contain any anionic surfactant.

As amphoteric surfactants, mention may be made, for example, of those chosen from betaines, sultaines and mixtures thereof.

Advantageously, a composition according to the invention comprises a content of zwitterionic or amphoteric surfactant(s) of less than 2% by weight, particularly less than or equal to 1% by weight, more particularly less than 0.5% by weight, relative to the total weight of the composition. Preferably the composition does not contain any zwitterionic or amphoteric surfactant.

As cationic surfactants, mention may be made, for example, of those chosen from alkylimidazolidiniums, such as isostearyl ethylimidonium ethosulfate, ammonium salts such as (Ci2-30-alkyl)-tri(Ci-4-alkyl)ammonium halides such as N,N,N-trimethyl-l- docosanaminium chloride (or behentrimonium chloride).

As silicone surfactants, mention may be made, for example, of those chosen from non-ionic surfactants with an HLB of greater than or equal to 8 at 25 °C, used alone or as a mixture, dimethicone copolyol or dimethicone copolyol benzoate, or non-ionic surfactants with an HLB of less than 8 at 25°C, used alone or as a mixture, such as the cyclomethicone/dimethicone copolyol mixture.

Preferably, a composition according to the invention comprises less than 0.5% by weight of silicone surfactant(s), relative to the total weight of the composition, in particular less than 0.1% by weight of silicone surfactant(s), and preferably is free of silicone surfactant(s). b-1) Polyglycerol esters of fatty acids containing from 6 to 20 carbon atoms

According to a preferred embodiment of the invention, a composition according to the invention comprises, as additional surfactant b), at least one non-ionic surfactant chosen from fatty acid esters of polyglycerol, said fatty acid containing from 6 to 20 carbon atoms, preferably from 7 to 16 carbon atoms, more preferentially from 8 to 14 carbon atoms, better still from 8 to 12 carbon atoms.

Preferably the fatty acid esters of polyglycerol that are suitable for use in the invention are of formula (I):

R-C(O)-O-[-CH₂-CH(OH)-CH₂-O]n-H (I)

In n which formula (I) R represents a linear or branched, preferably linear, saturated or unsaturated, preferably saturated, hydrocarbon-based chain comprising from 6 to 20 carbon atoms, preferably from 7 to 16 carbon atoms, more preferentially from 8 to 14 carbon atoms, better still from 8 to 12 carbon atoms, n represents an integer greater than or equal to 1, particularly between 1 and 14, preferably between 2 and 12, more preferentially between 4 and 10.

As fatty acid esters of poly glycerol containing from 6 to 20 carbon atoms, examples that may be mentioned include the following commercial products:

- Polyglyceryl-2 Caprate: Dermosoft DGMC (Dr. Straetmans); SunSoft Q-10D (Taiyo Kagaku Company, Ltd.);

- Poly glyceryl- 3 Caprate: Tegosoft PC 31 (Evonik Goldschmidt GmbH);

- Polyglyceryl-4 Caprate: Glysurf 4MC (Aoki Oil Industrial Co., Ltd.); Tegosoft PC 41 (Evonik Goldschmidt GmbH);

- Poly glyceryl- 5 Caprate: SunSoft A-10E (Taiyo Kagaku Company, Ltd.);

- Poly glyceryl- 6 Caprate: Glysurf 6MC (Aoki Oil Industrial Co., Ltd.);

- Poly glyceryl- 10 Caprate: SunSoft Q-10S (Taiyo Kagaku Company, Ltd.); SY-Glyster MD- 750 (Sakamoto Yakuhin Kogyo) (Celless Laboratory Co., Ltd.);

- Polyglyceryl-2 Caprylate;

- Poly glyceryl- 3 Caprylate: Tegosoft PC 31 (Evonik Goldschmidt GmbH);

- Polyglyceryl-4 Caprylate: Glysurf 4MC (Aoki Oil Industrial Co., Ltd.), Tegosoft PC 41 (Evonik Goldschmidt GmbH);

- Poly glyceryl- 3 Caprylate: Tego Cosmo P 813 (Evonik Goldschmidt GmbH); - Polyglyceryl-4 Caprylate: Resassol PG4C (Res Pharma S.r.l.);

- Poly glyceryl- 6 Caprylate: Caprol 6GC8 (Abitec Corporation); Dermofeel G 6 CY (Dr. Straetmans); SunSoft Q-81F (Taiyo Kagaku Company, Ltd.);

- Poly glyceryl- 10 Caprylate: SY-Glyster MCA-750 (Sakamoto Yakuhin Kogyo Co., Ltd.);

- Polyglyceryl-4 Caprylate/Caprate: NatraGem S150 (Croda Europe, Ltd.);

- Poly glyceryl- 6 Caprylate/Caprate: Tego Cosmo P 813 (Evonik Goldschmidt GmbH);

- Poly glyceryl- 10 Caprylate/Caprate: SY-Glyster MCA-750 (Sakamoto Yakuhin Kogyo Co., Ltd.);

- Polyglyceryl-2 Laurate: Dermofeel G 2 L (Dr. Straetmans); DL-100 (Riken Vitamin Co., Ltd.); Sunsoft Q-12F (Taiyo Kagaku Company, Ltd);

- Poly glyceryl- 3 Laurate: Hydramol TGL Ester (Lubrizol Advanced Materials, Inc.); Sunsoft A-12C (Taiyo Kagaku Company, Ltd.); Sunsoft A-121C (Taiyo Kagaku Company, Ltd;

- Polyglyceryl-4 Laurate: S-Face L-401 (Sakamoto Yakuhin Kogyo Co., Ltd.); Tego Care PL 4 (Evonik Goldschmidt GmbH);

- Poly glyceryl- 5 Laurate: Dermofeel G 5 L (Dr. Straetmans); Sunsoft A-12E (Taiyo Kagaku Company, Ltd.); Sunsoft A-121E (Taiyo Kagaku Company, Ltd);

- Poly glyceryl- 6 Laurate: Nikkol Hexaglyn 1-L (Nikko Chemicals Co., Ltd.); S-Face L-601 (Sakamoto Yakuhin Kogyo Co., Ltd.); Sunsoft Q-12F (Taiyo Kagaku Company, Ltd);

- Poly glyceryl- 10 Laurate: Dermofeel G 10 L (Dr. Straetmans); Nikkol Decaglyn 1-L (Nikko Chemicals Co., Ltd.); Nikkol Decaglyn 1-LV EX (Nikko Chemicals Co., Ltd.); S-Face L- 1001 (Sakamoto Yakuhin Kogyo Co., Ltd.); Sunsoft M-12J (Taiyo Kagaku Company, Ltd); Sunsoft Q-12S (Taiyo Kagaku Company, Ltd).

Mention may be made in particular of polyglyceryl-4 caprate and poly glyceryl- 10 laurate.

According to a preferred embodiment, the additional surfactant(s) b) are chosen from fatty acid esters of polyglycerol containing from 8 to 12 carbon atoms and notably chosen from polyglyceryl-4 caprate, poly glyceryl- 10 laurate, and mixtures thereof.

Advantageously, a composition according to the invention comprises at least polyglyceryl- 4 caprate.

Advantageously, a composition according to the invention comprises at least polyglyceryl- 10 laurate and polyglyceryl-4-caprate.

The additional surfactant(s) b) chosen from fatty acid polyglycerol esters containing from 6 to 20 carbon atoms may be present in the composition according to the invention in a content ranging from 0.5% to 10% by weight, in particular from 1% to 8% by weight, and preferably from 2% to 6% by weight, relative to the total weight of the composition. b-2) Acylglutamates

According to a particular embodiment of the invention, a composition according to the invention comprises, as additional surfactant b), at least one anionic surfactant chosen from acylglutamates.

The acylglutamate surfactants contain an acyl group in particular comprising from 10 to 30 carbon atoms, and preferably from 14 to 30 carbon atoms. Preferably the acylglutamate surfactants are chosen from those of formula (II) below:

R-C(O)-NH-CH[CH₂-CH₂-C(O)O ]-C(O)O’ , 2 M⁺ (II) in which formula (II):

R is as defined in formula (I),

M⁺, which may be identical or different, represents a counter cation, preferably chosen from alkali metals such as Na⁺, K⁺, alkaline-earth metals such as Ca²⁺, Mg²⁺ and ammonium, preferably Na⁺.

They are notably chosen from stearoylglutamates, myristoylglutamates, lauroylglutamates, cocoylglutamates, and mixtures thereof.

More particularly, they may be chosen from sodium stearoyl glutamate, disodium stearoyl glutamate, potassium stearoyl glutamate, potassium myristoyl glutamate, potassium lauroyl glutamate, disodium lauroyl glutamate, triethanolamine lauroyl glutamate, sodium cocoyl glutamate, disodium cocoyl glutamate, triethanolamine cocoyl glutamate, potassium cocoyl glutamate, sodium hydrogenated tallow acyl glutamate and mixtures thereof.

By way of illustration, mention may be made, for example, of the surfactants sold under the name Amisoft® by Ajinomoto, notably sodium stearoyl glutamate sold under the reference Amisoft® HS 11 PRD, and disodium cocoyl glutamate (and) sodium cocoyl glutamate sold under the reference Amisoft® CS-22.

Preferably, the composition according to the invention comprises at least one surfactant chosen from cocoyl glutamates, and more preferentially sodium cocoyl glutamate and/or disodium cocoyl glutamate. More preferentially, a composition according to the invention comprises a mixture of acylglutamates, in particular a mixture of cocoyl glutamates, and preferably disodium cocoyl glutamate (and) sodium cocoyl glutamate.

A composition according to the invention may comprise said acylglutamate surfactant(s) in a content ranging from 0.01% to 5% by weight, preferably from 0.1% to 5% by weight, preferentially from 0.5% to 2% by weight, relative to the total weight of the composition.

In particular, a composition according to the invention comprises a total content of surfactants ranging from 2% to 20% by weight, in particular ranging from 5% to 15% by weight, and preferably ranging from 8% to 13% by weight, relative to the total weight of the composition.

Such surfactant contents in the composition make it possible to achieve both good transparency and good stability of the composition thus formulated.

Preferably, the content of acylglutamate surfactants is less than or equal to 1% by weight relative to the total weight of the composition, preferably between 0.01% and 1% by weight relative to the total weight of the composition.

Advantageously, a composition according to the invention does not contain any acylglutamate surfactants.

Advantageously, a composition according to the invention comprises at least caprylyl/capryl glucoside, polyglyceryl-4 caprate and/or poly glyceryl- 10 laurate.

Advantageously, a composition according to the invention comprises at least caprylyl/capryl glucoside, polyglyceryl-4 caprate and/or poly glyceryl- 10 laurate, and disodium cocoyl glutamate.

Advantageously, a composition according to the invention comprises at least caprylyl/capryl glucoside, polyglyceryl-4 caprate and disodium cocoyl glutamate. c) Fragrancing substance

As mentioned previously, a composition according to the invention comprises at least one fragrancing substance. Perfumes are compositions notably containing the starting materials described in S. Arctander, Perfume and Flavor Chemicals (Montclair, N.J., 1969), in S. Arctander, Perfume and Flavor Materials of Natural Origin (Elizabeth, N.J., 1960) and in Flavor and Fragrance Materials - 1991, Allured Publishing Co., Wheaton, III.

A fragranced composition according to the invention preferably comprises at least one fragrancing substance chosen from essential oils, perfumes and aromas of synthetic or natural origin, and mixtures thereof.

They may be natural products, such as essential oils, absolutes, resinoids, resins, concretes, and/or synthetic products, such as terpene or sesquiterpene hydrocarbons, alcohols, phenols, aldehydes, ketones, ethers, acids, esters, nitriles or peroxides, which may be saturated or unsaturated, and aliphatic or cyclic.

According to the definition given in the international standard ISO 9235 and adopted by the Commission of the European Pharmacopoeia, an essential oil is an odorous product, generally of complex composition, obtained from a botanically defined plant starting material, either by steam distillation, or by dry distillation, or by an appropriate mechanical process without heating (cold pressing). The essential oil is generally separated from the aqueous phase via a physical process which does not result in any significant change in the composition.

The choice of the method for obtaining essential oils depends mainly on the starting material: its original state and its characteristics, its intrinsic nature. The “essential oil/plant starting material” yield may be extremely variable depending on the plant: 15 ppm to more than 20%. This choice determines the characteristics of the essential oil, in particular viscosity, colour, solubility, volatility, and richness or poorness in certain constituents.

Steam entrainment corresponds to vaporization, in the presence of steam, of a sparingly water-miscible substance. The raw material is placed in contact with water bring to boiling point, or water steam in an alembic. The steam entrains the essential oil vapor, which is condensed in the condenser and recovered as a liquid phase in a Florentine vase (or essence jar), where the essential oil is separated from the water by settling. The aqueous distillate that remains after the steam distillation, once the separation of the essential oil has been performed, is known as the “aromatic water” or “hydrolate” or “distilled floral water”.

Production by dry distillation consists in obtaining the essential oil by distillation of woods, barks or roots, without addition of water or steam, in a closed chamber designed so that the liquid is recovered at the bottom. Cade oil is the best known example of a product obtained in this way.

The method of production by cold pressing applies only to citrus fruits (Citrus spp.) via mechanical processes at room temperature. The principle of the method is as follows: the zests are tom into pieces and the contents of the secretory sacs that have been broken are recovered by a physical process. The conventional process consists in exerting an abrasive action on the entire surface of the fruit under a stream of water. After removal of the solid waste, the essential oil is separated from the aqueous phase by centrifugation. The majority of industrial installations actually allow simultaneous or sequential recovery of the fruit juices and of the essential oil.

Essential oils are generally volatile and liquid at room temperature, which distinguishes them from “set” oils. They are more or less coloured and their density is generally less than that of water. They have a high refractive index and most of them deflect polarized light. They are liposoluble and soluble in the usual organic solvents, distillable with steam, and very sparingly soluble in water.

Among the essential oils that may be used according to the invention, mention may be made of those obtained from plants belonging to the following botanical families: Abietaceae or Pinaceae, for example conifers; Amaryllidaceae; Anacardiaceae; Anonaceae, for example ylang; Apiaceae, for example Umbelliferae, in particular dill, angelica, coriander, sea fennel, carrot or parsley; Araceae; Aristolochiaceae; Asteraceae, for example yarrow, artemisia, camomile, and helichrysum; Betulaceae; Brassicaceae; Burseraceae, for example frankincense; Caryophyllaceae; Canellaceae; Cesalpiniaceae, for example copaifera (copaiba balsam); Chenopodaceae; Cistaceae, for example rock rose; Cyperaceae; Dipterocarpaceae; Ericaceae, for example gaultheria (wintergreen); Euphorbiaceae; Fabaceae; Geraniaceae, for example geranium; Guttiferae; Hamamelidaceae; Hernandiaceae; Hypericaceae, for example St- John’s wort; Iridaceae; Juglandaceae; Lamiaceae, for example thyme, oregano, monarda, savory, basil, marjorams, mints, patchouli, lavenders, sages, catnip, , hyssop, balm, rosemary; Lauraceae, for example ravensara, sweet bay, rosewood, cinnamon, litsea; Liliaceae, for example garlic; Magnoliaceae, for example magnolia; Malvaceae; Meliaceae; Monimiaceae; Moraceae, for example hemp or hop; Myricaceae; Myristicaceae, for example nutmeg; Myrtaceae, for example eucalyptus, tea tree, paperbark tree, cajuput, backhousia, clove, myrtle; Oleaceae; Piperaceae, for example pepper; Pittosporaceae; Poaceae, for example citronella grass, lemongrass, vetiver; Polygonaceae; Renonculaceae; Rosaceae, for example roses; Rubiaceae; Rutaceae, for example all citrus plants; Salicaceae; Santalaceae, for example sandalwood; Saxifragaceae; Schisandraceae; Styracaceae, for example benzoin; Thymelaceae, for example agarwood; Tilliaceae; Valerianaceae, for example valerian, spikenard; Verbenaceae, for example lantana, verbena; Violaceae; Zingiberaceae, for example galangal, turmeric, cardamom, ginger; Zygophyllaceae.

Mention may also be made of the essential oils extracted from flowers (lily, lavender, rose, jasmine, ylang ylang, neroli), from stems and leaves (patchouli, geranium, petitgrain), from fruit (coriander, aniseed, cumin, juniper), from fruit peel (bergamot, lemon, orange), from roots (angelica, celery, cardamom, iris, sweet flag, ginger), from wood (pinewood, sandalwood, gaiac wood, rose of cedar, camphor), from grasses and gramineae (tarragon, rosemary, basil, lemongrass, sage, thyme), from needles and branches (spruce, fir, pine, dwarf pine) and from resins and balms (galbanum, elemi, benzoin, myrrh, olibanum, opopanax).

Examples of fragrancing substances are notably: geraniol, geranyl acetate, farnesol, borneol, bornyl acetate, linolool, linalyl acetate, linalyl propionate, linalyl butyrate, tetrahydrolinolool, citronellol, citronellyl acetate, citronellyl formate, citronellyl propionate, dihydromyrcenol, dihydromyrcenyl acetate, tetrahydromyrcenol, terpineol, terpinyl acetate, nopol, nopyl acetate, nerol, neryl acetate, 2-phenylethanol, 2-phenylethyl acetate, benzyl alcohol, benzyl acetate, benzyl salicylate, styrallyl acetate, benzyl benzoate, amyl salicylate, dimethylbenzylcarbinol, trichloromethylphenylcarbinyl acetate, p-tert-butylcyclohexyl acetate, isononyl acetate, vetiveryl acetate, vetiverol, a-hexylcinnamaldehyde, 2-methyl-3- (p-tert-butylphenyl)propanal, 2-methyl-3-(p-isopropylphenyl)propanal, 3-(p-tert- butylphenyl)propanal, 2,4-dimethylcyclohex-3-enylcarboxaldehyde, tricyclodecenyl acetate, tricyclodecenyl propionate, 4-(4-hydroxy-4-methylpentyl)-3- cyclohexenecarboxaldehyde, 4-(4-methyl-3-pentenyl)-3-cyclohexenecarboxaldehyde, 4- acetoxy-3-pentyltetrahydropyran, 3-carboxymethyl-2-pentylcyclopentane, 2-n-4- heptylcyclopentanone, 3-methyl-2-pentyl-2-cyclopentenone, menthone, carvone, tagetone, geranylacetone, n-decanal, n-dodecanal, 9-decen-l-ol, phenoxyethyl isobutyrate, phenylacetaldehyde dimethyl acetal, phenylacetaldehyde diethyl acetal, geranonitrile, citronellonitrile, cedryl acetate, 3-isocamphylcyclohexanol, cedryl methyl ether, isolongifolanone, aubepinonitrile, aubepine, heliotropin, coumarin, eugenol, vanillin, diphenyl oxide, citral, citronellal, hydroxycitronellal, damascene, ionones, methylionones, isomethylionones, solanone, irones, cis-3-hexenol and esters thereof, musk-indans, musk- tetralins, musk-isochromans, macrocyclic ketones, musk- macrolactones, aliphatic musks and ethylene brassylate, and mixtures thereof.

A fragranced composition according to the invention preferably comprises a fragrancing substance chosen from essential oils, perfumes and aromas of synthetic or natural origin, and mixtures thereof.

Preferably, a fragranced composition according to the invention comprises only one or more fragrancing substances that are natural or of natural origin.

In other words, a fragranced composition according to the invention comprises less than 0.1% by weight of fragrancing substance(s) of synthetic origin, relative to the total weight of the composition, in particular less than 0.01% by weight of fragrancing substance(s) of synthetic origin, and preferably is free from fragrancing substance(s) of synthetic origin. According to a preferred embodiment of the invention, a mixture of different fragrancing substances that generate in common a note that is pleasant to the user is used.

Thus, according to a preferred embodiment, the fragranced composition comprises at least a mixture of fragrancing substances, in particular of at least two different fragrancing substances, relative to the total weight of the composition, and preferably at least three different fragrancing substances.

The fragrancing substances will preferably be chosen such that they produce notes (head, heart and base) in the following families: citrine, aromatic, floral notes, in particular pink flowers and white flowers, spicy, woody, gourmand, chypre, fougere, leathery, musk.

For obvious reasons, the amount of fragrancing substance(s) present in a composition according to the invention is liable to vary significantly with regard to the odour or the odour intensity sought by its presence.

By way of illustration, a fragranced composition according to the invention may comprise from 0.01% to 20% by weight, particularly from 0.1% to 15.0% by weight, more particularly from 1.0% to 10.0% by weight and preferentially from 2.0% to 8.0% by weight of fragrancing substance(s), relative to the total weight of said composition.

As mentioned above, the fragrancing substances may be introduced into a fragranced composition in accordance with the invention in the form of a perfume concentrate. The perfume concentrate may be a concrete or an absolute, preferably an absolute.

Thus, a fragranced composition according to the invention particularly comprises from 0.01% to 10% by weight of perfume concentrate, more particularly from 0.1% to 8% by weight, preferentially from 0.1% to 6% by weight and more preferentially from 0.5% to 5% by weight, for example 2% by weight, relative to the total weight of the composition. d) Diol

As mentioned previously, a composition according to the invention comprises at least one diol.

For the purposes of the present invention, the term “diol” should be understood as meaning any organic molecule including two free hydroxyl groups.

Preferably, a diol in accordance with the present invention is present in liquid form at room temperature.

The diols that are advantageously suitable for the formulation of a composition according to the present invention are those notably containing from 2 to 32 carbon atoms, preferably 3 to 16 carbon atoms, more particularly (C2-C32)alkanediols, the alkane part being linear or branched, preferably (C3-Ci6)alkanediols, more particularly (C4-Cs)alkanediols.

Among the diols that may be used in the composition according to the invention, mention may notably be made of ethylene glycol, propane- 1,2-diol (propylene glycol), propane- 1,3- diol, butylene glycol, pentane- 1,2-diol (pentylene glycol), dipropylene glycol, caprylyl glycol (octane- 1,2-diol), isoprene glycol, hexylene glycol, and mixtures thereof.

According to a preferred embodiment, the composition of the invention comprises at least one diol chosen from propane- 1,2-diol, propane- 1,3-diol and mixtures thereof, and preferably comprises at least propane- 1,2-diol.

A composition according to the invention may comprise a content of diol(s) ranging from 2% to 15% by weight, preferably from 3% to 10% by weight and preferentially from 4% to 9% by weight, relative to the total weight of the composition.

Aqueous phase

A composition according to the invention is aqueous. Thus, it comprises at least one aqueous phase. The aqueous phase of a composition according to the invention comprises water and optionally a water-soluble solvent, other than the diol(s) mentioned above.

In the present invention, the term “water-soluble solvent” denotes a compound which is liquid at ambient temperature and miscible with water (miscibility in water of greater than 50% by weight at 25°C and atmospheric pressure).

The water-soluble solvents that can be used in the composition of the invention may also be volatile.

Among the water-soluble solvents that may be used in the compositions in accordance with the invention, mention may notably be made of lower monoalcohols containing from 3 to 5 carbon atoms, such as ethanol and isopropanol, polyols other than the diol that is suitable for use in the invention and as defined above, C3 and C4 ketones and C2-C4 aldehydes.

Preferably, a composition according to the invention is free of lower monoalcohols containing from 3 to 5 carbon atoms.

A composition according to the invention comprises less than 2% by weight of ethanol, preferably less than 1% by weight, more particularly less than 0.5% by weight, relative to the total weight of the composition, in particular less than 0.1% by weight of ethanol, and preferably is free of ethanol.

In particular, the aqueous phase of a composition according to the invention may comprise at least one C2-C32 polyol, different from the diols mentioned previously.

Preferably, a polyol in accordance with the present invention is present in liquid form at room temperature.

A polyol that is suitable for use in the invention may be a compound of linear, branched or cyclic, saturated or unsaturated alkyl type, bearing on the alkyl chain at least three -OH functions and more particularly at least four -OH functions.

The polyols that are advantageously suitable for formulating a composition according to the present invention are those notably containing from 2 to 32 carbon atoms and preferably 3 to 16 carbon atoms.

Advantageously, the polyol may be chosen, for example, from pentaerythritol, trimethylolpropane, glycerol or glycerine, poly glycerols, such as glycerol oligomers, for instance diglycerol, and polyethylene glycols, and mixtures thereof, preferably glycerol or glycerine. Preferably, the composition of the invention may comprise at least glycerol, also present as an active as detailed below.

In particular, a composition according to the invention comprises at least 50% by weight of water, preferably at least 60% by weight of water, and more preferentially between 62% and 80% by weight of water, relative to the total weight of the composition.

Gelling agent

A composition according to the invention may comprise at least one gelling agent, in particular at least one hydrophilic gelling agent.

For the purposes of the present invention, the term “hydrophilic gelling agent” means a compound that is capable of gelling the aqueous phase of the compositions according to the invention.

The gelling agent is hydrophilic and is thus present in the aqueous phase of the composition. The gelling agent may be water-soluble or water-dispersible.

The hydrophilic gelling agent may be chosen from synthetic polymeric gelling agents, polymeric gelling agents that are natural or of natural origin, mixed silicates and fumed silicas, and mixtures thereof.

Preferably, the hydrophilic gelling agent may be chosen from synthetic polymeric gelling agents, polymeric gelling agents that are natural or of natural origin, and mixtures thereof. More preferentially, the hydrophilic gelling agent may be chosen from polymeric gelling agents that are natural or of natural origin.

The polymeric gelling agents that are natural or of natural origin may be particulate or nonparticulate.

More specifically, these gelling agents fall within the category of polysaccharides.

The polysaccharides that are suitable for use in the invention may be distinguished according to whether or not they are starchy.

Preferably, the gelling agent according to the invention is chosen from non-starchy polysaccharides.

In general, the non-starchy polysaccharides may be chosen from polysaccharides produced by microorganisms; polysaccharides isolated from algae, and higher plant polysaccharides, such as homogeneous polysaccharides, in particular celluloses and derivatives thereof or fructosans, heterogeneous polysaccharides such as gum arabics, galactomannans, glucomannans and pectins, and derivatives thereof; and mixtures thereof.

In particular, the polysaccharides may be chosen from fructans, gellans, glucans, amylose, amylopectin, glycogen, pullulan, dextrans, celluloses and derivatives thereof, in particular methylcelluloses, hydroxyalkylcelluloses, ethylhydroxyethylcelluloses and carboxymethylcelluloses, mannans, xylans, lignins, arabans, galactans, galacturonans, alginate -based compounds, chitin, chitosans, glucuronoxylans, arabinoxylans, xyloglucans, glucomannans, pectic acids and pectins, arabinogalactans, carrageenans, agars, glycosaminoglucans, gum arabics, tragacanth gums, ghatti gums, karaya gums, locust bean gums, galactomannans such as guar gums and non-ionic derivatives thereof, in particular hydroxypropyl guar, and ionic derivatives thereof, biopolysaccharide gums of microbial origin, in particular scleroglucan or xanthan gums, mucopolysaccharides, and in particular chondroitin sulfates, and mixtures thereof.

Preferably, the polysaccharides may be chosen from carrageenans, in particular kappa- carrageenan, gellan gum, agar-agar, xanthan gum, alginate-based compounds, in particular sodium alginate, sceroglucan gum, guar gum, inulin and pullulan, and mixtures thereof.

In particular, xanthan is a heteropolysaccharide. Xanthan gums have a molecular weight of between 1 000 000 and 50 000 000 and a viscosity of between 0.6 and 1.65 Pa.s for an aqueous composition containing 1% of xanthan gum (measured at 25 °C on a Brookfield viscometer of LVT type at 60 rpm).

Xanthan gums are represented, for example, by the products sold under the names Rhodicare by the company Rhodia Chimie, under the name Satiaxane™ by the company Cargill Texturizing Solutions (for the food, cosmetic and pharmaceutical industries), under the name Novaxan™ by the company ADM, and under the names Kelzan® and Keltrol® by the company CP-Kelco.

The gelling agent according to the invention may also be a galactan notably chosen from agar and carrageenans. Carrageenans are anionic polysaccharides. They are notably sold by the company SEPPIC under the name Solagum®, by the company Gelymar under the name Carragel®, Carralact®, and Carrasol®, by the company Cargill, under the names Satiagel™ and Satiagum™, and by the company CP-Kelco under the names Genulacta®, Genugel® and Genuvisco®. According to a preferred embodiment, a composition according to the invention also comprises at least one gelling agent, in particular at least one hydrophilic gelling agent, preferably at least one hydrophilic gelling agent that is natural or of natural origin, and more preferentially chosen from xanthan and/or carrageenan.

A fragranced composition according to the invention may comprise a content of gelling agent(s), in particular hydrophilic gelling agent(s), ranging from 0.01% to 5% by weight, preferably from 0.02% to 3% by weight, preferentially from 0.04% to 1% by weight, relative to the total weight of the composition.

Additional active agents

A composition according to the invention may also comprise at least one additional cosmetic active agent.

In particular, the additional cosmetic active agent may be at least one hydrophilic active agent.

The term “hydrophilic active agent” means a water-soluble or water-dispersible active agent which is capable of forming hydrogen bonds.

The additional active agent(s) may notably be chosen from vitamins and derivatives thereof, notably esters thereof, humectants such as urea, hydroxyureas, glycerol, polyglycerols, glyceryl glucoside, diglyceryl glucoside, polyglyceryl glucosides, and xylityl glucoside, and in particular glycerol, and mixtures thereof.

According to a preferred embodiment, a composition according to the invention also comprises at least one additional active agent, and preferably also comprises at least glycerol and/or Aloe vera.

A composition according to the invention may comprise from 1% to 15% by weight of additional active agent(s), and preferably from 5% to 12% by weight of additional active agent(s), relative to the total weight of the composition.

Additives

A composition according to the invention may also include at least one additive chosen from the usual adjuvants in the cosmetic field, such as preserving agents, dyestuffs, polar additives, film-forming polymers, pH adjusters (acids or bases), neutralizers, chelating agents and mixtures thereof. The term “preservative” or “preserving agent” means any cosmetically or pharmaceutically acceptable compound which can prevent microbial growth (or the growth of microorganisms) which may take place in cosmetic compositions, from the moment of their preparation, while they are in storage and up to the time of their conventional use by consumers. Preserving agents that may notably be mentioned include the preserving agents described in Cosmetics, Kirk-Othmer Encyclopedia of Chemical Technology. John Wiley & Sons, Inc., Martin M. Rieger; 5.2 preservatives & table 3, 04/12/2000, https://doi.org/10.1002/0471238961.0315191318090507.a01.

As examples of preserving agents that are suitable for use in the invention, mention may be made of esters of para-hydroxybenzoic acid, also known as parabens (in particular methyl paraben, ethyl paraben, propyl paraben), phenoxyethanol, formaldehyde releasers, for instance imidazolidinylurea or diazolidinylurea, chlorhexidine digluconate, sodium benzoate, iodopropynyl butyl carbamate, pentylene glycol, alkyltrimethylammonium bromide such as myristyltrimethylammonium bromide (CTFA name: Myrtrimonium bromide), dodecyltrimethylammonium bromide, hexadecyltrimethylammonium bromide, and mixtures thereof.

A cosmetic composition according to the invention may have a pH of between 3 and 10 and preferentially between 5 and 7. This pH may be adjusted by means of pH-modifying compounds, in particular acidifying and basifying agents conventionally used in cosmetics. Among the pH adjusters, mention may be made of mineral or organic acids, for instance hydrochloric acid, orthophosphoric acid or sulfuric acid, carboxylic acids, for instance acetic acid, tartaric acid, citric acid and lactic acid, and sulfonic acids. Among the basifying agents, examples that may be mentioned include aqueous ammonia, alkali metal carbonates, alkanolamines, such as mono-, di- and triethanolamines and derivatives thereof, sodium hydroxide or potassium hydroxide.

Among the neutralizers, mention may notably be made of alpha-hydroxy acid.

Among the chelating agents, mention may notably be made of sodium phytate.

Needless to say, a person skilled in the art will take care to select this or these optional additional compound(s), and/or the amount thereof, such that the advantageous properties of a composition according to the invention are not, or are not substantially, adversely affected by the envisioned addition. A cosmetic composition according to the invention preferably does not contain any controversial ingredients, in particular with a negative impact on the environment and/or health.

Thus, a composition according to the invention is preferably free of compounds that are liable to be harmful to man and/or the environment, i.e. it comprises less than 0.01% by weight, or is even free of compounds that are liable to be harmful to man and/or the environment.

Oily phase

According to a particular embodiment, a composition according to the invention may comprise an oily phase.

When the composition used according to the invention includes an oily phase, it preferably contains at least one oil, notably a cosmetic oil. It may also contain other fatty substances.

The term “oil” means a water-immiscible non-aqueous compound that is liquid at room temperature (20°C) and atmospheric pressure (760 mmHg).

An oily phase that is suitable for preparing the cosmetic compositions according to the invention may comprise hydrocarbon-based oils, silicone oils, fluoro oils or non-fluoro oils, or mixtures thereof. The oils may be volatile or non-volatile. They may be of animal, plant, mineral or synthetic origin. Oils of animal, plant or mineral origin are preferred.

The term “non-volatile” refers to an oil whose vapour pressure at room temperature and atmospheric pressure is non-zero and is less than 10'³ mmHg (0.13 Pa).

For the purposes of the present invention, the term “silicone oil” means an oil comprising at least one silicon atom, and notably at least one Si-0 group.

The term “fluoro oil” means an oil comprising at least one fluorine atom.

The term “hydrocarbon-based oil” means an oil mainly containing hydrogen and carbon atoms.

The oils may optionally comprise oxygen, nitrogen, sulfur and/or phosphorus atoms, for example in the form of hydroxyl or acid radicals.

For the purposes of the invention, the term “volatile oil” means any oil that is capable of evaporating on contact with the skin in less than one hour, at room temperature and atmospheric pressure. The volatile oil is a volatile cosmetic compound, which is liquid at room temperature, having in particular a non-zero vapour pressure, at room temperature and atmospheric pressure, in particular having a vapour pressure ranging from 0.13 Pa to 40 000 Pa (10‘³ to 300 mmHg), in particular ranging from 1.3 Pa to 13 000 Pa (0.01 to 100 mmHg) and more particularly ranging from 1.3 Pa to 1300 Pa (0.01 to 10 mmHg).

Preferably, a composition according to the invention does not comprise any oily phase other than the fragrancing substance(s).

Preferably, a composition according to the invention comprises less than 1% by weight of oil(s), relative to the total weight of the composition, in particular less than 0.5% by weight of oils, and preferably is free of oil(s).

Intended use of the composition

A composition according to the invention is a fragranced composition, generally suitable for topical application to the skin and thus generally comprising a physiologically acceptable medium.

Preferably, it is a cosmetic composition.

The invention applies not only to fragrancing products but also to cosmetic products for caring for or treating keratin materials, in particular the skin, including the scalp, and the lips, containing an odorous substance.

A composition according to the invention may thus constitute a composition for fragrancing or for the care or cosmetic treatment of keratin materials, and may notably be in the form of an eau fraiche, eau de toilette, eau de parfum, aftershave lotion, care lotion, or silicone or hydrosilicone care oil, or eau de cologne. It may also be in the form of a fragranced two- phase lotion (eau de toilette phase/hydrocarbon-based oil and/or silicone oil phase), a body milk or a shampoo.

Preferably, a composition according to the invention is in the form of an eau fraiche, eau de toilette, eau de parfum, or care lotion, and even more preferentially it is an eau de toilette. The compositions according to the invention may be packaged in the form of bottles.

A fragrancing composition according to the invention may be diffused by various systems, such as sprays, aerosols or piezoelectric devices.

They may also be applied in the form of fine particles by means of mechanical pressurization or propellant gas devices. The devices in accordance with the invention are well known to those skilled in the art and comprise pump-bottles or “sprays”, aerosol containers comprising a propellant and aerosol pumps using compressed air as propellant. These devices are notably described in patents US 4 077 441 and US 4 850 517.

The compositions conditioned as aerosols in accordance with the invention generally contain conventional propellants, for instance dimethyl ether, isobutane, n-butane or propane. Preferably, a composition according to the invention is diffused in spray form.

The invention is illustrated in greater detail by the examples presented below. Unless otherwise indicated, the amounts indicated are expressed as mass percentages.

Example

Measurement and evaluation methods

The stability of the compositions is evaluated by observation of the change in colour over time, visually and using a spectrocolorimeter (L*, a*, b*) Konica Minolta CM 3600A, and by olfactory evaluation of the change in the notes of the fragranced composition.

In particular, the compositions are poured into 50 mL borosilicate glass boiling flask and are then observed after storage for 2 months, at atmospheric pressure and under various conditions: a) in an oven, at a temperature of 45°C. Storage of the compositions for two months at 45°C simulates accelerated ageing of the product corresponding to a shelf life of 3 years; b) in natural light and at room temperature, namely between 20°C and 25 °C, and then: b.l) 16 hours in an Atlas brand SunTest CPS+ ageing device, equipped with a xenon lamp, irradiating light source whose spectral distribution is close to that of sunlight, delivering an energy of 765 W/m², simulating exposure to neon lights in a shop; or b.2) 2 weeks in an oven at a temperature of 45°C, simulating an extreme condition for the perfume; c) in a refrigerator, at a temperature of 4°C; d) at room temperature, namely between 20°C and 25°C, protected from light; e) in an oven, at a temperature of 37°C; f) at room temperature, namely between 20°C and 25°C, in natural light. The intensity difference DL between a reference composition and a composition tested after storage under the conditions mentioned above may be calculated from the L*a*b values according to the following formula:

[Math 1]

in which Li* is the intensity of the colour of the reference composition and L2* is the intensity of the colour of the composition tested after storage.

Example 1

Compositions 1 to 5 according to the invention are prepared using the weight proportions as described in detail in Table 1 below.

The values are expressed as weight percentages relative to the total weight of the composition.

[Table 1]

(*) Floral, woody, musky fragrance characterized by:

- its head notes of peach, coriander, plum and green note type,

- its heart notes of peony, lily, freesia, lily of the valley jasmine, ylang-ylang, rose and coffee type, and

- its base notes of tonka bean, musk, vanilla, sandalwood and cedar type; and/or

(**) Citrus type perfume characterized by:

- its head notes of lime, citron, mint and eucalyptus type, and

- its heart notes of coconut type.

Preparation of the compositions

Mix the compounds in phase A until they are completely dissolved.

Introduce the perfume and surfactants into phase B and homogenize thoroughly. Gently introduce phase B into phase A to avoid the formation of foam.

Finally, add phase C, where appropriate.

Allow to swell under magnetic stirring with a bar magnet.

Compositions 2 to 5 according to the invention are homogeneous and transparent. They are stable and, after application to the skin, afford persistence of the perfume, moisturization and a sensation of softness.

Composition 1, outside the invention, is less stable, in the sense that it yellows quickly. In addition, the fragrance left on the skin after application is significantly less intense. In addition, comparative composition 1 is significantly more foaming than the other compositions, which is visually unpleasant for a fragranced composition.

Claims

1. Aqueous fragranced composition, notably a cosmetic composition, comprising: a) at least one non-ionic surfactant chosen from Ce-Cio alkyl polyglucosides; b) at least one additional surfactant, different from the non-ionic surfactant a), preferably chosen from non-ionic and/or anionic surfactants; c) at least one fragrancing substance; and d) at least one diol; the weight ratio of surfactant(s) a) to fragrance substance(s) c) being between 0.1 and 2; and the composition comprising an ethanol content of less than or equal to 2% by weight relative to the total weight of the composition.

2. Composition according to Claim 1, the ethanol content being less than or equal to 1% by weight, more particularly less than or equal to 0.5% by weight, relative to the total weight of the composition, the composition preferably being ethanol-free.

3. Composition according to either of the preceding claims, in which the surfactant(s) a) / fragrancing substance(s) c) weight ratio is between 0.2 and 1.5, and preferably between 0.3 and 1.

4. Composition according to any one of the preceding claims, in which the non- ionic surfactant chosen from Ce-Cio alkyl polyglucosides is caprylyl/capryl glucoside.

5. Composition according to any one of the preceding claims, comprising a content of Ce-Cio alkyl polyglucoside(s) ranging from 0.5% to 18% by weight, in particular ranging from 1% to 15% by weight, and preferably ranging from 2% to 12% by weight, relative to the total weight of the composition.

6. Composition according to any one of the preceding claims, in which the additional surfactant is chosen from fatty acid esters of polyglycerol containing from 6 to 20 carbon atoms, acylglutamates, and mixtures thereof, preferably from fatty acid esters of poly glycerol containing from 6 to 20 carbon atoms.

7. Composition according to the preceding claim, comprising a content of fatty acid ester(s) of polyglycerol containing from 6 to 20 carbon atoms ranging from 0.5% to 10% by weight, in particular from 1% to 8% by weight and preferably from 2% to 6% by weight, relative to the total weight of the composition.

8. Composition according to Claim 6, comprising a content of surfactant(s) chosen from acylglutamates ranging from 0.01% to 5% by weight, preferably from 0.1% to 5% by weight and preferentially from 0.5% to 2% by weight, relative to the total weight of the composition.

9. Composition according to any one of the preceding claims, comprising a content of diol(s) ranging from 2% to 15% by weight, preferably ranging from 3% to 10% by weight, and preferentially from 4% to 9% by weight, relative to the total weight of the composition.

10. Composition according to any one of the preceding claims, comprising at least one diol chosen from propane- 1,2-diol, propane- 1,3-diol and a mixture thereof, and preferably comprising at least propane- 1,2-diol.

11. Composition according to any one of the preceding claims, comprising at least 50% by weight of water, preferably at least 60% by weight of water and more preferentially between 62% and 80% by weight of water relative to the total weight of the composition.

12. Composition according to any one of the preceding claims, said fragrancing substance being chosen from essential oils, perfumes and aromas of synthetic or natural origin, and mixtures thereof.

13. Composition according to any one of the preceding claims, comprising a content of fragrancing substance(s) ranging from 0.01% to 20% by weight, in particular from 0.1% to 15.0% by weight, more particularly from 1.0% to 10.0% by weight and preferentially from 2.0% to 8.0% by weight, relative to the total weight of said composition.

14. Composition according to any one of the preceding claims, also comprising at least one gelling agent, in particular at least one hydrophilic gelling agent, preferably at least one hydrophilic gelling agent that is natural or of natural origin, and more preferentially chosen from xanthan and/or carrageenan.

15. Composition according to any one of the preceding claims, also comprising at least glycerol and/or Aloe vera.

16. Composition according to any one of the preceding claims, comprising at least 90% by weight of natural compounds or compounds of natural origin, in particular at least 95% by weight, preferably at least 98% by weight, and more preferentially at least 99% by weight, relative to the total weight of the composition.

17. Composition according to any one of the preceding claims, said composition being transparent.