EP4003276A1

EP4003276A1 - Anhydrous antiperspirant and deodorant composition, process for its production and use thereof

Info

Publication number: EP4003276A1
Application number: EP19752635.3A
Authority: EP
Inventors: Bruna Rodrigues SALOMAO; Pedro Tupinamba Werneck Barroso
Original assignee: LOreal SA
Current assignee: Salomao Bruna Rodrigues; LOreal SA
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2022-06-01
Also published as: WO2021016683A1; BR112022001010A2

Abstract

The present disclosure relates to anhydrous antiperspirant and deodorant compositions having reduced melting point, good hardness properties, reduced number of ingredients and desirable sensorial perception. The anhydrous antiperspirant and deodorant compositions according to the present invention requires lower temperatures on the production process thereof and are more cost effective due to the reduced number of ingredients, besides being environmentally-friendly and costumer friendly.

Description

ANHYDROUS ANTIPERSPIRANT AND DEODORANT COMPOSITION, PROCESS FOR ITS PRODUCTION AND USE THEREOF

THEREOF

FIELD OF THE INVENTION

The present disclosure is directed to anhydrous antiperspirant and deodorant compositions. More specifically, the present disclosure is directed to wax- free and/or silicone-free anhydrous antiperspirant and deodorant compositions having reduced melting point, as well as good hardness properties and desirable sensorial perception, comprising cetearyl alcohol, hydrogenated castor oil, at least one active compound and an emollient. The present invention also discloses a process of manufacturing the anhydrous antiperspirant and deodorant compositions and uses of the antiperspirant compositions.

BACKGROUND OF THE INVENTION

Sweating, though a natural bodily function, results in the formation of wet patches on human skin or clothing. Moreover, the sweat secreted from sweat glands has a tendency to form a malodorous odor due to its interaction with the many microorganisms which reside on the underarm skin surface. These two phenomena are deemed to be undesirable in many societies.

Products are commonly available which help to address both phenomena. More particularly, antiperspirant products possess active ingredients which inhibit/suppress sweating, whereas deodorant products possess ingredients that mask the malodors caused by sweat. Many products address both phenomena simultaneously.

In general, the above-referenced products fall into three dispensing category types: aerosol sprays, solids and roll-ons. Solid antiperspirant compositions are usually in the form of stick and are perceived to be dry, moisturizing and easy to apply. However, they comprise waxes and/or silicones in their composition.

Waxes, although useful for raising the hardness of solid antiperspirant compositions, have the particular drawback of raising the melting point of the product, thereby requiring high temperatures on the production process thereof, around 80°C to 100°C, in order to melt the raw materials and, therefore, the final composition. Moreover, many waxes, such as polyethylene waxes and microcrystalline wax, are based on non-renewable sources, thereby not being desirable for developing environmentally friendly products consisting renewable raw materials.

Silicones are commonly used in antiperspirant compositions to protect skin, retain moisture and, particularly in solid stick compositions, enhance the spreadability of the product. However, silicones have been found to have undesirable side effects.

Therefore, there has been a need for solid antiperspirant and deodorant compositions being wax-free and/or silicone-free in order to overcome the current drawbacks of the state of the art. In this sense, the inventors formulated a wax-free and/or silicone-free anhydrous antiperspirant and deodorant compositions comprising a reduced number of ingredients, while preserving the sensory perception thereof. The antiperspirant and deodorant composition according present invention is capable of reducing the production costs and being more costumer friendly and environmentally-friendly. Moreover, the anhydrous compositions of the present invention have reduced melting points, thereby allowing a temperature reduction in the process for their production, since lower temperatures are necessary for melting the ingredients and, the final composition.

SUMMARY OF THE INVENTION

The present disclosure relates to anhydrous antiperspirant and deodorant compositions having reduced melting point, good hardness properties, reduced number of ingredients and desirable sensorial perception. The anhydrous antiperspirant and deodorant compositions according to the present invention requires lower temperatures on the production process thereof and are more cost effective due to the reduced number of ingredients, besides being environmentally- friendly and costumer friendly.

Other features and advantages of the present invention will be apparent from the following more detailed description of the desirable embodiments which illustrates, by way of example, the principles of the invention.

DETAILED DESCRIPTION OF THE INVENTION

The anhydrous antiperspirant and deodorant compositions of the present invention can comprise, consist of, or consist essentially of the essential elements and limitations of the present invention described herein, as well as any of the additional or optional ingredients, components, or limitations described herein. The terms“a”,“an”, and“the” are understood to encompass the plural as well as the singular.

As used herein, the expression“at least one” means one or more and thus includes individual components as well as mixtures/combinations.

All ranges and values disclosed herein are inclusive and combinable.

For examples, any value or point described herein that falls within a range described herein can serve as a minimum or maximum value to derive a sub-range, etc.

The term“anhydrous” as used herein means that the antiperspirant and deodorant composition of the present invention, and the essential or optional components thereof, are substantially free of added or free water. From a formulation standpoint, this means that the antiperspirant composition of the present invention contains less than about 5%, preferably less than about 3%, more preferably less than about 2% by weight, even more preferably less than about 1 % by weight of free or added water.

In an embodiment, the anhydrous antiperspirant and deodorant composition of the present invention comprises:

(a) at least 12% by weight of cetearyl alcohol, relative to the total weight of the composition;

(b) at least 2% by weight of hydrogenated castor oil, relative to the total weight of the composition;

(c) at least one active compound selected from the group consisting of antiperspirant active agents, deodorant active agents and mixtures thereof;

(d) at least 20% by weight, relative to the total weight of the composition of an emollient selected from the group consisting of dimethicone, isopropyl palmitate, isopropyl myristate, C12-C15 alkyl benzoate, or mixtures thereof.

The compositions according to the present invention have reduced melting point, good hardness properties, reduced number of ingredients and desirable sensorial perception. They also require lower temperatures on the production process thereof and are more cost effective due to the reduced number of ingredients, besides rendering them environmentally-friendly and costumer friendly.

In a preferred embodiment, the amount of cetearyl alcohol in the anhydrous antiperspirant and deodorant composition of the present invention is from about 12% by weight to about 40% by weight, preferably from about 15% by weight to about 35% by weight, more preferably from about 20% by weight to 30% by weight, relative to the total weight of the composition.

The amount of hydrogenated castor oil in the anhydrous antiperspirant and deodorant composition of the present invention is preferably from about 2% by weight to about 20% by weight, relative to the total weight of the composition, more preferably from about 2% by weight to about 10% by weight, even more preferably from about 2% by weight to about 8% by weight, relative to the total weight of the composition.

In a preferred embodiment, the anhydrous antiperspirant and deodorant composition of the present invention has an amount of active compound(s) of at least

1 % by weight, relative to the total weight of the composition, preferably ranging from about 1 % by weight to about 40% by weight, more preferably from about 1 % by weight to about 30% by weight, even more preferably from about 1 % by weight to about 25% by weight, relative to the total weight of the composition

The active compounds are preferably selected from the group consisting of antiperspirant active agents, deodorant active agents, and mixtures thereof. Preferably, the antiperspirant active agents are selected from the group consisting of aluminum salts, and the deodorant active agents may be preferably selected from the group consisting of magnesium oxide.

In a preferred embodiment, the anhydrous antiperspirant and deodorant composition of the present invention further comprises an emollient in an amount of at least about 20% by weight, relative to the total weight of the composition, preferably from about 20% by weight to about 70% by weight, more preferably from about 25% by weight to about 65% by weight, even more preferably from about 30% by weight to about 60% by weight, relative to the total weight of the composition.

In an optional embodiment, the emollient is selected from the group consisting of dimethicone, isopropyl palmitate, isopropyl myristate, C12-C15 alkyl benzoate, or mixtures thereof. In a more preferred manner, the emollient is selected from the group consisting of isopropyl palmitate, isopropyl myristate, C12-C15 alkyl benzoate or mixtures thereof.

Preferably, the anhydrous antiperspirant and deodorant composition of the present invention is absent of waxes (wax-free). In an alternative embodiment, the anhydrous antiperspirant and deodorant composition of the present invention is absent of silicones (silicone-free). The anhydrous antiperspirant and deodorant composition of the invention can be used as a daily product for the skin and may be in the form of lotions, milks, creams, gels, gel creams, foams, sprays and sticks. In a preferred embodiment, the anhydrous antiperspirant and deodorant composition of the present invention is in the form of a stick.

In another preferred embodiment, the present invention is related to the use of a composition for manufacturing a product for reducing, masking or absorbing human body odors and/or reducing the secretion of sweat, which can be used as antiperspirant daily product.

In an embodiment, the composition of the present invention is in the form of a stick having a hardness of 400g to 900g, based on a penetrometry measurement with steel wire.

The present invention is also related to a process of manufacturing an anhydrous antiperspirant and deodorant composition that provides for the consumer the properties described above. The process according to the present invention comprise the steps of:

(a) melting and mixing the hydrogenated castor oil and the cetearyl alcohol at a temperature ranging from about 60°C to about 90°C;

(b) optionally, incorporating additional ingredients and/or emollients to the mixture of step (a) at a temperature ranging from about 60°C to about 90°C

(c) incorporating the active compounds at a temperature ranging from about 60°C to about 90°C.

(d) optionally, product filling at a temperature ranging from about 60°C to about 90°C.

Preferably, steps (a), (b), (c) and (d) are carried out at a temperature ranging from about 60°C to about 80°C, more preferably from about 60°C to about 75°C.

ACTIVE COMPOUND

For the purposes of the present invention, the term "active compound" is directed to deodorant active agents, antiperspirant active agents or mixtures thereof. The active compounds are preferably present in the composition according to the invention in an amount of at least about 1% by weight, relative to the total weight of the composition, preferably in an amount ranging from about 1 % by weight to about 40% by weight, more preferably from about 1 % by weight to about 30% by weight, even more preferably from about 1 % by weight to about 25% by weight, relative to the total weight of the composition.

Deodorant active agents

The term "deodorant active agent" is intended to mean any substance capable of reducing, masking or absorbing human body odors, in particular underarm odors.

The deodorant active agents may be bacteriostatic agents or bactericides that act on underarm odor microorganisms, such as 2,4,4'-trichloro-2'- hydroxydiphenyl ether (©Triclosan), 2,4-dichloro-2'-hydroxydiphenyl ether, 3’,4’,5’- trichlorosalicylanilide, 1 -(3’,4’-dichlorophenyl)-3-(4’-chlorophenyl)urea (©Triclocarban) or 3,7,11 -trimethyldodeca-2,5,10-trienol (©Farnesol); quaternary ammonium salts such as cetyltrimethylammonium salts, cetylpyridinium salts, DPTA (1 ,3- diaminopropanetetraacetic acid), 1 ,2-decanediol (Symclariol from the company Symrise); glycerol derivatives, for instance caprylic/capric glycerides (Capmul MCM® from Abitec), glyceryl caprylate or caprate (Dermosoft GMCY® and Dermosoft GMC® from Straetmans), polyglyceryl-2 caprate (Dermosoft DGMC® from Straetmans), and biguanide derivatives, for instance polyhexamethylene biguanide salts; chlorhexidine and salts thereof; 4-phenyl-4,4-dimethyl-2-butanol (Symdeo MPP® from Symrise); zinc salts such as zinc salicylate, zinc gluconate, zinc pidolate, zinc sulfate, zinc chloride, zinc lactate or zinc phenolsulfonate; salicylic acid and derivatives thereof such as 5-n-octanoylsalicylic acid.

The deodorant active agents may be odor absorbers such as zinc ricinoleates, sodium bicarbonate; metallic or silver or silver-free zeolites, or cyclodextrins and derivatives thereof. They may also be chelating agents such as Dissolvine GL-47-S® from Akzo Nobel, EDTA and DPTA. They may also be a polyol of glycerol or 1 ,3- propanediol type (for example, Zemea Propanediol sold by Dupont Tate and Lyle BioProducts); or else an enzyme inhibitor such as triethyl citrate; or alum.

The deodorant active agents may also be agents for neutralizing foul smelling volatile compounds, such as sodium bicarbonate, for example sold by Universal Preserv-A-Chem, magnesium carbonate, for example sold by Buschle & Lepper, calcium carbonate, for example sold by Sensient, zinc oxide, for example sold by Kobo, magnesium oxide, for example sold by Dr. Paul Lohmann, calcium oxide or calcium hydroxide; amine derivatives such as tromethamine (for example, TRIS AMINO ULTRA sold by Angus (Dow chemical), triethanolamine, triethylamine and ethanolamine.

Preferably, the deodorant active agent is selected from the group consisting of magnesium oxide.

Antiperspirant Active Agents

The term “antiperspirant active agent” is understood to mean any substance capable of reducing the secretion of sweat. Antiperspirant active agents may also act as deodorant active agents.

The antiperspirant active agents which can be used according to the invention are preferably chosen from aluminum salts; complexes of zirconium chlorohydrate and of aluminum chlorohydrate with an amino acid. In a preferred embodiment, the antiperspirant active agents are selected from the group consisting of aluminum salts.

Mention may in particular be made, among the aluminum salts, of aluminum chlorohydrate in the activated or nonactivated form, aluminum chlorohydrex, taluminum chlorohydrex polyethylene glycol complex, aluminum chlorohydrex propylene glycol complex, aluminum dichlorohydrate, aluminum dichlorohydrex polyethylene glycol complex, aluminum dichlorohydrex propylene glycol complex, aluminum sesquichlorohydrate, aluminum sesquichlorohydrex polyethylene glycol complex, aluminum sesquichlorohydrex propylene glycol complex, or aluminum sulphate buffered by sodium aluminum lactate.

Mention may in particular be made, among the aluminum and zirconium salts, of aluminum zirconium octachlorohydrate, aluminum zirconium pentachlorohydrate, aluminum zirconium tetrachlorohydrate or aluminum zirconium trichlorohydrate.

The complexes of zirconium chlorohydrate and of aluminum chlorohydrate with an amino acid are generally known under the name ZAG (when the amino acid is glycine). They are disclosed in particular in Patent US 3,792,068. The ZAG complexes usually exhibit an Al/Zr quotient ranging from approximately 1.67 to 12.5 and a Metal/Cl quotient ranging from approximately 0.73 to 1.93.

Mention may be made, among these products, of the aluminum zirconium octachlorohydrex glycine, aluminum zirconium pentachlorohydrex glycine, aluminum zirconium tetrachlorohydrex glycine and aluminum zirconium trichlorohydrex glycine complexes. EMOLLIENT

The anhydrous antiperspirant and deodorant composition according to the present invention comprises an emollient selected from the group consisting of synthetic esters, silicones and mixtures thereof. In a preferred embodiment, the at least one emollient is selected from synthetic esters or mixtures of synthetic esters, and the composition is absent of silicones.

The synthetic esters according to the present invention are preferably selected from the group consisting of oils of formula RCOOR' in which R represents a linear or branched fatty acid residue containing from 1 to 40 carbon atoms and R' represents a hydrocarbon-based chain that is especially branched, containing from 1 to 40 carbon atoms, on condition that R + R’ is >10, for instance, cetearyl octanoate, isopropyl myristate, isopropyl palmitate, C12-C15 alkyl benzoate, 2-ethylphenyl benzoate, isopropyl lanolate, hexyl laurate, diisopropyl adipate, isononyl isononanoate, oleyl erucate, 2-ethylhexyl palmitate, isostearyl isostearate, diisopropyl sebacate, octanoates, decanoates or ricinoleates of alcohols or polyalcohols, such as propylene glycol dioctanoate; hydroxylated esters, such as isostearyl lactate or diisostearyl malate; and pentaerythritol esters; citrates or tartrates, such as di(linear C12-C13 alkyl) tartrates, and also di(linear C14-C15 alkyl) tartrates, or acetates; or mixtures of synthetic esters.

Preferably, the emollient is selected from the group consisting of dimethicone, isopropyl palmitate, isopropyl myristate, C12-C15 alkyl benzoate, or mixtures thereof. In a more preferred manner, the emollient is selected from the group consisting of isopropyl palmitate, isopropyl myristate, C12-C15 alkyl benzoate or mixtures thereof.

In a preferred embodiment, the amount of the emollient of the anhydrous antiperspirant and deodorant composition of the present invention is at least about 20% by weight, relative to the total weight of the composition, preferably from about 20% by weight to about 70% by weight, more preferably from about 35% by weight to about 65% by weight, even more preferably from about 30% by weight to about 60%b by weight, relative to the total weight of the composition.

SURFACTANTS

The anhydrous antiperspirant and deodorant composition according to the present invention may comprise at least one surfactant, which is preferably selected from the group consisting of nonionic surfactants. Non-limiting examples of nonionic surfactants useful in the present invention include, for example, alkyl- and polyalkyl- esters of glycerol, polyglycerol ester of fatty acids, mixtures of alkyl- and polyalkyl- esters of glycerol with polyglyceryl, such as polyglyceryl-3 methylglucose distearate, oxyalkylenated (more particularly polyoxyethylenated), fatty acid esters of glycerol; oxyalkylenated fatty acid esters of sorbitan; oxyalkylenated (oxyethylenated and/or oxypropylenated) fatty acid esters; oxyalkylenated (oxyethylenated and/or oxypropylenated) fatty alcohol ethers; sugar esters, for instance sucrose stearate; fatty alcohol ethers of sugars, especially alkyl polyglucosides (APGs) such as decyl glucoside, lauryl glucoside, cetostearyl glucoside, optionally as a mixture with cetostearyl alcohol, and also arachidyl glucoside, for example in the form of a mixture of arachidyl alcohol, behenyl alcohol and arachidyl glucoside. According to one particular embodiment of the invention, the mixture of the alkyl polyglucoside as defined above with the corresponding fatty alcohol may be in the form of a self-emulsifying composition Mention may also be made of lecithins and derivatives (e.g. Biophilic), sugar esters and sodium stearoyl lactylate.

Oxyalkylenated (oxyethylenated and/or oxypropylenated) fatty alcohol ethers are preferably those having a number of ethylene or propylene oxide (EO/PO) units ranging from 2 to 200. Mention may be made to steareth 40, steareth 100, beheneth 40 and beheneth 100.

Alkyl- esters of glycerol includes glyceryl esters of fatty acids, such as glyceryl stearate (glyceryl mono-, di-, and/or tristearate), glyceryl laurate or glyceryl ricinoleate, and mixtures thereof. As polyoxyalkylenated derivatives thereof, mono-, di-, or triester of fatty acids with a polyoxyalkylenated glycerol (mono, di-, or triester of fatty acids with a polyalkylene glycol ether of glycerol) can be cited, preferably polyoxyethylenated glyceryl stearate (mono-, di-, and/or tristearate), such as PEG-20 glyceryl stearate (mono-, di-, and/or tristearate).

Polyglycerol esters of fatty acids may be selected from the group consisting of esters derived from the reaction of polyglycerol having from 2 to 12 glycerol units, preferably from 3 to 10 glycerol units and of at least one fatty acid comprising from 8 to 24 carbon atoms, preferably from 8 to 20 carbon atoms, preferably from 10 to 18 carbon atoms and more preferably 10 to 14 carbon atoms. Fatty acids containing from 8 to 24 carbon atoms may be linear or branched, saturated or unsaturated. The fatty acids may be selected from the group consisting of oleic acid, stearic acid, isostearic acid, lauric acid, palmitic acid, myristic acid, linoleic acid, capric acid, caprylic acid, or mixtures thereof.

According to a preferred embodiment, polyglycerol esters of fatty acid are selected from esters derived from the reaction of polyglycerol comprising 2 to 12 glycerol units, preferably from 4 to 10 glycerol units, and of at least a fatty acid having less than 16 carbon atoms, preferably less than 15 carbon atoms, for example from 8 to 16 carbon atoms and better still from 8 to 14 carbon atoms.

According to one embodiment, the polyglycerol ester of fatty acid is selected from the group consisting of polyglycerol esters derived from the reaction comprising 4 to 10 glycerol units and of at least one fatty acid comprising from 8 to 12 carbon atoms preferably 10 to 12 carbon atoms such as lauric acid and / or capric acid. There may be mentioned for example the ester from polyglyceryl-10 reaction (glycerol homopolymer comprising 10 glycerol units) and lauric acid (INCI name: polyglyceryl-10 laurate) such as that marketed by the company Dr Straetmans under the DERMOFEEL reference G 10 L, the ester from the reaction polyglycerol-4 (glycerol homopolymer comprising 4 glycerol units) and capric acid (INCI name: polyglyceryl-4 caprate) such as that marketed by Evonik under the reference Tegosoft PC 41.

Examples of oxyalkylenated fatty acid esters that may be mentioned include the adducts of ethylene oxide with esters of lauric acid, palmitic acid, stearic acid or behenic acid, and mixtures thereof, especially those containing from 8 to 100 oxyethylene units, such as PEG-8 to PEG-50 laurate; PEG-8 to PEG-50 palmitate; PEG-8 to PEG-50 stearate; PEG-8 to PEG-50 distearate PEG-8 to PEG-50 palmitostearate; PEG-8 to PEG-50 behenate; polyethylene glycol 100 EO monostearate (PEG-100 stearate); and mixtures thereof.

Other examples of nonionic surfactants to be used in the surfactant system of the present invention include polycondensates of ethylene oxide and of propylene oxide of the structure below:

H-(0-CH2-CH2)a-(0-CH(CH₃)-CH2)b-(0-CH2-CH2)a -0H, in which a, a’ range from 2 to 150, and b ranges from 1 to 100.

In the chemical structure described above, preferably, a and a’ range from 10 to 130 and b ranges from 20 to 80, better still a and a’ range from 50 to 130 and b ranges from 30 to 80, and even better still a and a’ range from 80 to 130 and b ranges from 40 to 80. According to one particular embodiment, a and a’ are identical. The polycondensate of ethylene oxide and propylene oxide that is useful in the composition of the invention preferably has a weight-average molecular weight ranging from 250 to 19 000, better still ranging from 1200 to 15 000, in particular ranging from 1500 to 10 000 and even better still ranging from 1500 to 5000.

As polycondensate products of ethylene oxide and propylene oxide that may be used according to the invention, mention may be made of the polyethylene glycol/polypropylene glycol/polyethylene glycol triblock polycondensate products sold under the name Synperonic, for instance Synperonic® PE/F32 (INCI name: Poloxamer 108), Synperonic® PE/F108 (INCI name: Poloxamer 338), Synperonic® PE/L44 (INCI name: Poloxamer 124), Synperonic® PE/L42 (INCI name: Poloxamer 122), Synperonic® PE/F127 (INCI name: Poloxamer 407), Synperonic® PE/F88 (INCI name: Poloxamer 238), Synperonic® PE/L64 (INCI name: Poloxamer 184), Synperonic® PE/F88 (INCI name: Poloxamer 238), Synperonic® PE/F87 (INCI name: Poloxamer 237) by the company Croda, or Lutrol® F68 (INCI name: Poloxamer 188) by the company BASF.

In a preferred embodiment, the at least one surfactant is a nonionic surfactant selected from the group consisting of steareth-100, PPG-14 butyl ether, PEG-8 distearate, and mixtures thereof.

Preferably, the amount of the at least one nonionic surfactant in the anhydrous antiperspirant and deodorant composition of the present invention ranges from about 0.1 % by weight to about 40% by weight, preferably from about 0.1 % by weight to about 30% by weight, more preferably from about 0.1 % by weight to about 20% by weight, based on the total weight of the composition.

ADDITIONAL INGREDIENTS

In addition to the essential components described hereinbefore, the composition of the invention may further comprise any usual cosmetically acceptable ingredient, which may be chosen especially from perfume/fragrance, preserving agents, antioxidants, solvents, actives, vitamins, fillers, polymers, and mixtures thereof.

A person skilled in the art will take care to select the optional additional ingredients and/or the amount thereof such that the advantageous properties of the composition according to the invention are not, or are not substantially, adversely affected by the envisaged addition. Suitable polymers include, but are not limited to xanthan gum, poly Cio- 30 alkyl acrylate, acrylates/Cio-3o alkyl acrylate crosspolymer, styrene/acrylates copolymer, dimethicone/vinyl dimethicone crosspolymer and mixtures thereof.

Non-limiting example of preserving agent which can be used in accordance with the invention include phenoxyethanol. An example of antioxidant is pentaerythrityl tetra-di-t-butyl hydroxyhydrocinnamate.

Suitable fillers of the invention could be as examples of oil-absorbing fillers:, mica, silica, zea may (corn) starch, nylon-12, nylon-66, cellulose, talc, perlite, sodium silicate, pumice, PTFE, polymethyl methacrylate, oryza sativa (rice) starch, aluminum starch octenylsuccinate, potato starch modified, alumina, calcium sodium borosilicate, sodium carboxylmethyl starch.

Suitable solvents include, but are not limited to alcohols, glycols and polyols such as glycerin, caprylyl glycol, pentylene glycol, propylene glycol, butylene glycol, and mixtures thereof.

Suitable additional actives include, but are not limited to disodium EDTA, triethanolamine, and mixtures thereof.

Non-limiting example of vitamins suitable for the composition of the present invention includes tocopherol.

The additional ingredients may represent from 0.1 % to 20%, such as from 0.1 % to 15% or such as from 0.1 to 10% by weight, relative to the total weight of the composition of the invention.

By way of non-limiting illustration, the invention will now be described with reference to the following examples.

EXAMPLES

EXAMPLES 1 TO 6 - COMPOSITIONS ACCORDING TO THE INVENTION

Anhydrous antiperspirant and deodorant compositions according to the present invention were prepared according to Examples 1 to 6 below. EXAMPLES 7 AND 8 - COMPOSITIONS ACCORDING TO THE PRIOR ART

Anhydrous antiperspirant and deodorant compositions according to the prior art were prepared according to Examples 7 and 8 below.

EXAMPLE 9 - COMPARATIVE TESTS

The anhydrous antiperspirant and deodorant compositions according to Examples 3 and 4 were compared with a composition of the prior art (Example 7) assessed as their sensory attributes, more particularly, ease of application, freshness, number of turns (drying time), spreadability, oily texture, creamy texture, shine, stickiness, soft touch, particles (peluche), amount of residue, oily residue, waxy residue, gritty residue, white residue and amount of product applied. The direct comparison was made via T-Student tests having 95% of confidence.

The results are summarized in the table below.

A - Higher than prior art 1

B - Lower than prior art 1

EXAMPLE 10 - COMPARATIVE TESTS

The anhydrous antiperspirant and deodorant compositions according to

Examples 1 and 3 were compared with two composition of the prior art (Prior Art 1 and Example 8) assessed as their sensory attributes, more particularly, ease of application, freshness, number of turns (drying time), spreadability, oily texture, creamy texture, shine, stickiness, soft touch, particles (peluche), amount of residue, oily residue, waxy residue, gritty residue, white residue, wash out and amount of product applied. The direct comparison was made via T-Student tests having 95% of confidence.

The “Prior Art 1” is a composition consisting of cyclopentasiloxane, aluminum zirconium tetrachlorohydrex gly, ppg-14 butyl ether, stearyl alcohol, hydrogenated castor oil, talc,parfum/perfume, bht, caprylic/capric triglyceride, gelatin crosspolymer, cellulose gum, sodium benzoate, aqua, hydrated silica, sodium starch octenylsuccinate, maltodextrin, hydrolysed com starch, silica, alpha-isomethyl lonone, benzyl alcohol, benzyl cinnamate, benzyl salicylate, butyphenyl methylpropional, citrunellol, coumarin,geraniol, hydroxyisohexl 3-cyclohexene carboxaldehyde and linalool.

The results are summarized in the tables below.

A - Higher than prior art 2 B - Lower than prior art 2

A - Higher than prior art 3 B - Lower than prior art 3

Claims

SET OF CLAIMS

1. An anhydrous antiperspirant and deodorant composition, comprising:

(a) at least 1 2% by weight of cetearyl alcohol, relative to the total weight of the composition ;

(c) at least one active compound selected from the group consisting of antiperspirant active agents, deodorant active agents and mixtures thereof

(d) at least 20% by weight, relative to the total weight of the composition, of an emollient selected from the group consisting of dimethicone, isopropyl palmitate, isopropyl myristate, C12-C15 alkyl benzoate, or mixtures thereof.

2. The anhydrous antiperspirant and deodorant composition, according to claim 1 , wherein the amount of cetearyl alcohol in the antiperspirant composition is from 12% by weight to 40% by weight, relative to the total weight of the composition.

3. The anhydrous antiperspirant and deodorant composition, according to claim 1 , wherein the amount of hydrogenated castor oil in the antiperspirant composition is from 2% by weight to 20% by weight, relative to the total weight of the composition.

4. The anhydrous antiperspirant and deodorant composition, according to claim 1 , wherein the amount of active compound(s) in the antiperspirant composition is from 1 % by weight to 40% by weight, relative to the total weight of the composition.

5. The anhydrous antiperspirant and deodorant composition, according to claim 1 , wherein the emollient is an amount ranging from 20% by weight to 70% by weight, relative to the total weight of the composition.

6. The anhydrous antiperspirant and deodorant composition, according to claim 1 , wherein the emollient is selected from the group consisting of isopropyl palmitate, isopropyl myristate, C12-C15 alkyl benzoate or mixtures thereof.

7. The anhydrous antiperspirant and deodorant composition, according to claim 1 , wherein the at least one active compound comprises at least one antiperspirant active agent selected from the group consisting of aluminum salts.

8. The anhydrous antiperspirant and deodorant composition, according to claim 1 , wherein the at least one active compound comprises at least one deodorant active agent selected from the group consisting of magnesium oxide.

9. The anhydrous antiperspirant and deodorant composition, according to claim 1 , wherein the composition is absent of waxes.

10. The anhydrous antiperspirant and deodorant composition, according to claim 6, wherein the composition is absent of silicones.

1 1. A process of manufacturing an anhydrous antiperspirant and deodorant composition, comprising the steps of:

(a) melting and mixing the hydrogenated castor oil and the cetearyl alcohol at a temperature ranging from 60 to 90°C;

(b) optionally, incorporating additional ingredients to the mixture of step (a) at a temperature ranging from 60 to 90°C

(c) incorporating the active compounds at a temperature ranging from 60 to 90°C.

12. Use of the anhydrous antiperspirant and deodorant composition, as defined in any one of claims 1 to 10, for the manufacture of a product to be used as an antiperspirant and deodorant daily product.

13. Use, according to claim 12, wherein the antiperspirant and deodorant daily product is in the form of a stick.