EP4153319A1 - Procede d'obtention d'un extrait de bois de santal, compositions le comprenant et ses utilisations cosmetiques - Google Patents
Procede d'obtention d'un extrait de bois de santal, compositions le comprenant et ses utilisations cosmetiquesInfo
- Publication number
- EP4153319A1 EP4153319A1 EP21722249.6A EP21722249A EP4153319A1 EP 4153319 A1 EP4153319 A1 EP 4153319A1 EP 21722249 A EP21722249 A EP 21722249A EP 4153319 A1 EP4153319 A1 EP 4153319A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sandalwood
- extract
- skin
- solvent
- exhausted
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/96—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution
- A61K8/97—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution from algae, fungi, lichens or plants; from derivatives thereof
- A61K8/9783—Angiosperms [Magnoliophyta]
- A61K8/9789—Magnoliopsida [dicotyledons]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
- A61Q1/02—Preparations containing skin colorants, e.g. pigments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
- A61Q19/02—Preparations for care of the skin for chemically bleaching or whitening the skin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q7/00—Preparations for affecting hair growth
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/80—Process related aspects concerning the preparation of the cosmetic composition or the storage or application thereof
- A61K2800/805—Corresponding aspects not provided for by any of codes A61K2800/81 - A61K2800/95
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids
Definitions
- the present invention relates to the field of cosmetics and more particularly that of active ingredients entering into the field. the formulation of the compositions for the care of the skin.
- the invention relates to an extract of sandalwood (Santalum album) comprising from 10 to 70% of volatile compounds and from 30 to 90% of semi-to non-volatile compounds, to the process for obtaining this extract, to the compositions cosmetics comprising it, and finally to the cosmetic uses of such compositions for the care of the skin, scalp and integuments.
- Stantalum album White sandalwood
- sandalwood in English is a shrub of the santalaceae family, native to the Indian peninsula and Southeast Asia, for a long time. cultivated in Australia.
- Sandalwood is mainly used in perfumery and cosmetics, in the form of essential oil produced by distillation of the trunk and other parts of this tree (branches, roots) or by more complex extraction techniques.
- the major compounds of sandalwood essential oils are sesquiterpene alcohols (content greater than 90%), in particular (Z) - alpha-santalol (up to 50%) and (Z) -bêta- santalol (up to 30%).
- (Z) -alpha- santalol has a woody scent like cedarwood while (Z) -beta-santalol gives the characteristic notes of sandalwood (Brocke, C .; Eh, M .; Finke, A., Recent Developments in the Chemistry of Sandalwood Odorants, Chem. Biodiv. 2008, 5, 1000-1010).
- Sandalwood essential oil contains other sesquiterpene alcohols such as (E) -beta-curcumen-12-ol (2%), (Z) -gamma-bisabolen-12-ol (2% ), (6R, 7S) -iso-beta-bisabolol (1%), (6S, 7S) -iso-beta- bisabolol, epi-alpha-bisabolol and (Z) -alpha-trans-bergamotol (6%) (Baldovini, N .; Delasalle, C .; Joulain, D., Phytochemistry of the heartwood from fragrant Santalum species: a review, Flavor Fragr. J. 2011, 26, 7-26).
- sesquiterpene alcohols such as (E) -beta-curcumen-12-ol (2%), (Z) -gamma-bisabolen-12-ol (2% ), (6R, 7S) -iso-beta-bis
- Sandalwood is known and used in Ayurvedic medicine and aromatherapy in the treatment and prevention of a wide range of ailments, in particular to relieve anxiety, stress and depression (Kumar, R .; Anjum, N .; Tripathi, JC, Phytochemistry and Pharmacology of Santalum album L .: A Review, World J. Pharm. Res. 2015, 4, 1842-1876; Setzer, WN, Essential Oils and Anxiolytic Aromatherapy, Nat. Prod. Commun. 2009, 4, 1305-1316).
- Sandalwood in particular by the presence of sesquiterpene alpha-santalol, is also known for its anti-inflammatory, antioxidant, anti-viral and anti-bacterial activities, but also for its chemopreventive and anti-bacterial properties. cancerous (Santha, S .; Dwivedi, C. Anticancer effects of sandalwood (Santalum album), Anticancer Res. 2015, 35, 3137-3146). [0008] Sandalwood extraction methods using supercritical CO 2 are described in several documents. Document CN104232308 describes a method for extracting the roots of Santalum album.
- the essential oil is also recommended for the care of dry or irritated skin, skin inflammation or itchy scalp.
- the skin is an organ composed of several layers (dermis, epidermis and stratum corneum), which covers the entire surface of the body and provides protective functions vis-à-vis external, sensitive, immune, metabolic, thermoregulatory or still barrier limiting dehydration.
- the skin has a regenerative function its barrier function when it is subjected to external aggressions, as well as anti-oxidant and detoxifying defense mechanisms, which are called upon in response to these attacks. Maintaining the skin barrier function is essential for maintaining skin integrity.
- the appearance of the skin can be modified by internal alterations (intrinsic aging, diseases and hormonal changes such as pregnancy) or external (environmental factors, such as pollution, sunlight, pathogens, variations temperature, etc.). All these alterations affect not only the skin, but also the keratinous appendages such as the body hair, eyelashes, eyebrows, nails and hair.
- the system of olfactory receptors (including OR2AT4) present in the skin have a role in the regeneration of epidermal cells, in particular by stimulating the renewal and migration of epidermal cells (Denda M. Newly discovered olfactory receptors in epidermal keratinocytes are associated with proliferation, migration, and re-epithelialization of keratinocytes. J Invest Dermatol.
- the skin and its appendages are provided with olfactory receptors including the OR2AT4 receptor associated with hair growth (Chéret J. et al. Olfactory receptor OR2AT4 regulates human hair growth. Nat Commun 9, 3624) , 2018).
- New molecules acting on olfactory receptors would have an effect on the ability of the skin to regenerate and to detect external pollutants. The inventors have thus demonstrated that a new particular extract of sandalwood, obtained from sandalwood exhausted by an extraction process making it possible both to extract the volatile compounds and the semi-dry compounds.
- the first subject of the invention is a process for obtaining an extract of sandalwood (Santalum album) comprising the following steps: a) between 30 and 50% of water is added to the exhausted sandalwood; b) optionally, the moistened sandalwood is mixed with 1 to 20% of an inert compound making it possible to improve the diffusivity of the extraction solvent, c) an extraction is carried out using a fluid containing supercritical state chosen from carbon dioxide (CO 2 ) and xenon, in the presence of a polar co-solvent, chosen from primary or secondary alcohols, or any mixture thereof.
- a fluid containing supercritical state chosen from carbon dioxide (CO 2 ) and xenon
- a second subject of the invention is a crude extract of exhausted sandalwood obtainable by the process of the invention, characterized in that it comprises from 10 to 70%, preferably from 12 to 23% , more preferably from 14 to 21% and even more preferably from 16 to 19% of volatile compounds on the one hand and from 30 to 90%, preferably from 77 to 88%, more preferably from 79 to 86% and even more preferably from 81 to 84% of semi to non-volatile compounds on the other hand.
- a subject of the invention is also a solubilized extract of exhausted sandalwood obtainable by the process of the invention, comprising from 0.5 to 1.5% of crude extract, dissolved in a solvent chosen from solvents of saturated or unsaturated fatty alcohol type, linear or branched, comprising from 8 to 30 carbons or solvents of glyceride type or any mixture thereof.
- a third subject of the invention is a cosmetic composition comprising, as active agent, a solubilized extract of exhausted sandalwood, at a concentration of between 0.001 and 1%, obtained according to the process of the invention and a physiologically acceptable medium .
- a fourth subject of the invention is the cosmetic use of a composition comprising the exhausted sandalwood extract of the invention for caring for the skin, scalp and integuments.
- sandalwood is understood to mean the spent grains of trunk chips, branches and sandalwood roots (Santalum album) recovered after extraction of the sandalwood. essential oil by steam distillation, then dried.
- polar co-solvent is understood to mean a solvent with a polarity greater than that of CO 2 in the supercritical state, such as primary or secondary alcohols, or any mixture thereof.
- solvent of glyceride type is meant esters of fatty acids and glycerol.
- compositions described in the present application can "comprise”, “consist of” or “consist essentially of”, the essential compounds or the optional ingredients. [0037] “Consist essentially of” means that the composition or component may include additional ingredients, but only if the additional ingredients do not modify the basic characteristics or the new characteristics of the composition or of the use described herein. demand.
- solvent compatible with the cosmetic field means a solvent suitable for bringing into contact with the outer layers of the skin, the scalp or the integuments, without toxicity, irritation, undue allergic response and the like or reaction of intolerance, and proportionate to a reasonable risk / benefit ratio, at the concentrations used.
- active agent is understood to mean a compound capable of acting on skin functions, with the aim of maintaining skin integrity, or of restoring it in the event of an imbalance caused by external factors (UV, pollution, detergents , etc.) or during aging, in order to improve the appearance of the skin.
- sandalwood extracts described in the prior art have an intense olfactory note, characteristic of this wood, and contain a not insignificant amount of volatile compounds at risk, such as allergens.
- the inventors wished to develop an extract not exhibiting these characteristics. To do this, they chose to use a raw material different from native sandalwood (trunk, branches or roots).
- sandalwood shavings Sudalum album
- the sandalwood having already been exhausted by extraction of the essential oil by distillation with water vapor, the extract obtained is depleted in volatile compounds. It then has a much less intense olfactory note and the allergen content is greatly reduced.
- the extraction process of the present invention has been the subject of a long development in order to optimize the extraction parameters.
- the influence of the extraction temperature, the percentage of inert compound making it possible to improve the diffusivity of the extraction solvent, the percentage of humidification of the material as well as the co-solvent flow rate was studied. .
- a first object of the invention is thus a process for obtaining an extract of sandalwood (Santalum album) comprising the following steps: a) between 30 and 50% of water is added to the exhausted sandalwood ; b) optionally, the exhausted sandalwood obtained in step a) is mixed with 1 to 20% of inert compound making it possible to improve the diffusivity of the extraction solvent; c) an extraction is carried out using a fluid in the supercritical state chosen from carbon dioxide (CO2) and xenon, in the presence of a polar co-solvent, chosen from primary or secondary alcohols, or any mixture thereof; d) the extract obtained in step c) is evaporated to remove the co-solvent and thus recover a crude extract in pasty form.
- a fluid in the supercritical state chosen from carbon dioxide (CO2) and xenon
- step a) the exhausted sandalwood is added with water in order to promote the permeation of the solvent in the interstitial phase of the wood in order to extract the extractable compounds.
- This step consists in adding extemporaneously between 30 and 50% of water to the used sandalwood.
- the chips are very dry and porous and easily absorb the water which is added at this stage, leaving a moist raw material.
- dried spent grains of depleted sandalwood (Santalum album) trunk chips stripped of their bark.
- the exhausted sandalwood can come from sandalwood (Santalum album) cultivated in Australia.
- Step b) is not mandatory, but can improve the extraction process.
- the humidified exhausted sandalwood obtained in step a) is mixed with 1 to 20% of an inert compound making it possible to improve the diffusivity of the extraction solvent and thus to avoid the creation of preferential paths. within plant matter.
- the inert compound is chosen from organic or inorganic compounds and preferably, the inert compound is powdered cellulose. Preferably, the inert compound is used at a concentration of 5 to 15%. In the course of this description, the presence of the inert compound is not taken into account in the mass ratio and yield calculations. The values given only take into account the vegetable raw material.
- a fluid in the supercritical state chosen from carbon dioxide (CO 2 ) and xenon. However, it will be preferable to use carbon dioxide.
- a polar co-solvent is also used, to increase the polarity of the CO 2 in the supercritical state and therefore to promote the extraction of polar compounds.
- the co-solvent is chosen from solvents with a polarity greater than that of CO 2 in the supercritical state, chosen from primary or secondary alcohols, or any mixture thereof.
- the co-solvent is ethanol at a concentration of between 80 and 100% (volume / volume) in water, preferably between 90 and 100% (volume / volume) in water and even more preferably at a concentration of 96% (volume / volume) in water.
- the mass ratio of supercritical fluid, when the fluid is carbon dioxide, relative to the amount of raw material involved (exhausted sandalwood) is between 10 and 50, advantageously between 20 and 40, and preferably between 25 and 35.
- the mass ratio of the supercritical fluid (carbon dioxide) relative to the co-solvent is between 0.050 and 0.080, advantageously between 0.055 and 0.075 and preferably between 0.060 and 0.070.
- the extraction temperature is between 35 and 85 ° C, advantageously between 45 and 75 ° C and preferably between 55 and 65 ° C.
- the pressure within the extractor is between 90 and 1000 bar, preferably between 150 and 700 bar and even more preferably between 250 and 400 bar.
- step c) advantageously the mixture obtained in step a) or in step b) is placed in a stainless steel cartridge, this cartridge is introduced into a supercritical fluid extractor.
- the solvent used to extract is carbon dioxide.
- step d) a first crude extract of exhausted sandalwood obtained in step c) is recovered, which is evaporated in vacuo to completely remove the co-solvent.
- the evaporation temperature is at most 65 ° C and the pressure below 90 mbar to allow good evaporation of the co-solvent.
- the extraction yield is preferably between 0.5 and 2%.
- the raw extract of exhausted sandalwood is obtained within the meaning of the invention, which is in pasty form and comprises: From 10 to 70% of volatile compounds; - From 30 to 90% of semi to non-volatile compounds; including 0.35 to 3.5% syringaldehyde.
- the extraction can then be continued by a step e) in which the crude extract obtained in step d) is dissolved in a solvent of saturated or unsaturated fatty alcohol type, linear or branched, comprising from 8 to 30 carbons or a solvent of the glyceride type, or any mixture thereof, preferably in order to obtain a concentration of crude extract of between 0.5 and 1.5% by weight of the total weight of the solubilized extract.
- the fatty alcohol or glyceride type solvent is chosen from octyldodecanol, 2-hexyl decanol, oleic alcohol and miglyol (mixture of triglycerides), or any mixture thereof. Even more preferably, the solvent is octyldodecanol.
- the extraction can be continued by an optional step f) in which the extract obtained in step d) or e) is purified. This step can be carried out by any technique known to those skilled in the art and in particular by chromatography or by molecular distillation. This step can for example make it possible to standardize the extract.
- the extract of the invention is different from the sandalwood extracts obtained by supercritical CO 2 of the state of the art, in that the co-products of the distillation of the chips are used as raw material. of Santalum album wood, therefore a material depleted in volatile compounds.
- the process described above makes it possible to obtain an extract enriched in polar and non-polar compounds.
- This extract has a wide chemical diversity in that it contains both a residual part of volatile compounds not extracted during the distillation by steam distillation as well as semi to non-volatile compounds of variable polarity.
- the second object of the invention is a crude extract of exhausted sandalwood obtainable by the process according to the invention.
- Another object of the invention is a crude extract of exhausted sandalwood obtained directly by the process according to the invention.
- the term “raw extract” of exhausted sandalwood is understood to mean the extract in pasty form obtained in step d) of the process.
- the crude extract of exhausted sandalwood itself comprises: - Between 10 and 70% of volatile compounds (mainly sesquiterpene alcohols, mainly (Z) -alpha-santalol, (Z) -beta-santalol and derivatives of these compounds), preferably between 12 and 23%, more preferably between 14 and 21% and even more preferably between 16 and 19%; - Between 30 and 90% of semi-to non-volatile compounds, preferably between 77 and 88%, more preferably between 79 and 86% and even more preferably between 81 and 84%.
- volatile compounds mainly sesquiterpene alcohols, mainly (Z) -alpha-santalol, (Z) -beta-santalol and derivatives of these compounds
- the crude extract comprises 16% of volatile compounds and 84% of semi to non-volatile compounds including 0.6% of syringaldehyde.
- volatile compounds is understood to mean organic molecules which can easily pass into the gas phase at atmospheric pressure and at ambient temperature. These are compounds that have a very low boiling point. They evaporate or sublimate easily from their solid or liquid form.
- Gas chromatography is therefore the technique of choice for analyzing and detecting them in the extract.
- These are mainly sesquiterpene alcohols, mainly (Z) -alpha-santalol and (Z) -beta-santalol.
- sesquiterpene alcohols mainly (Z) -alpha-santalol and (Z) -beta-santalol.
- the term “semi-to non-volatile compounds” is understood to mean molecules which do not easily pass into the gas phase at atmospheric pressure and at room temperature by virtue of a higher boiling point than in the case of volatile molecules.
- these are molecules of medium polarity belonging to the family of phenolic compounds (phenolic acids and aldehydes, lignans) and nonpolar molecules belonging to chemical families such as fatty acids, acetylenic acids, sesquiterpenes derived from sandalol as well as saponifiable compounds detected in the extract.
- the volatile compounds are analyzed by gas chromatography (GC) coupled to a mass spectrometer (MS) and / or to a flame ionization detector (FID). Confirmation of the identifications is made possible by comparison of linear retention indices and mass spectra contained in libraries. Quantification by GC / FID is done by internal calibration using the predicted and calculated response factors.
- the semi-to non-volatile compounds are monitored by high performance liquid chromatography (HPLC) coupled to a diode array UV detector (DAD) and an evaporative light scattering detector (DEDL). Structural identifications are confirmed by nuclear magnetic resonance (NMR) experiments as well as mass spectrometry analyzes high resolution (HRMS). The identification is also confirmed by injection of the standard if this is commercially available.
- the overall content of semi to non-volatile compounds is estimated by subtracting the content of volatile compounds. Syringaldehyde, the majority of moderately polar compounds, is considered as a marker of the crude extract and was quantified with a diode array detector by external calibration.
- the molecules mainly identified are: - In the volatile fraction, compounds of sesquiterpene alcohols type predominantly (Z) -alpha-santalol and (Z) -beta-santalol. - In the semi-to non-volatile fraction, compounds of fatty acid type, acetylenic acids, saponifiable compounds, sesquiterpene derivatives of santalol as well as aldehydes and phenolic acids and lignans. The non-exhaustive list of the compounds present in these two fractions is given in the following Table 1: [0080] [Tables 1] A few markers of the crude extract could be quantified.
- Another subject of the invention is a solubilized extract of exhausted sandalwood capable of being obtained by the process according to the invention.
- Another object of the invention is a solubilized extract of exhausted sandalwood obtained directly by the process according to the invention.
- exhaustted sandalwood extract or “solubilized exhausted sandalwood extract” within the meaning of the invention means the liquid extract obtained after solubilization in step e) of the process.
- the solvents used for the solubilization step are chosen from solvents of saturated or unsaturated fatty alcohol type, linear or branched, comprising from 8 to 30 carbons or solvents of glyceride type, or any mixture thereof.
- the fatty alcohol or glyceride type solvent is chosen from octyldodecanol, 2-hexyl decanol, oleic alcohol and miglyol (mixture of triglycerides), or any mixture thereof.
- the solvent is octyldodecanol.
- the solubilized extract of spent sandalwood is advantageously composed of 0.5 to 1.5% crude extract by weight of the total weight of the extract dissolved in octyldodecanol.
- the exhausted sandalwood extract is composed of 1.0% crude extract, by weight of the total weight of the extract dissolved in octyldodecanol.
- the solubilized extract of spent sandalwood is in liquid form and it contains a mixture of molecules having very varied polarities. Chromatographic analysis of the solubilized extract shows a syringaldehyde content of between 0.0035% and 0.035%.
- a third subject of the invention is a cosmetic composition comprising, as active agent, an exhausted sandalwood extract according to the invention, and a physiologically acceptable medium.
- a "physiologically acceptable medium” denotes a vehicle suitable for contacting the outer layers of the skin, scalp or integuments, without toxicity, irritation, undue allergic response and the like or intolerance reaction, and proportionate to a reasonable risk / benefit ratio.
- physiologically acceptable medium commonly used in the field of application envisaged, there may be mentioned, for example, adjuvants necessary for the formulation, such as solvents, thickeners, diluents, antioxidants, dyes, filters.
- the composition according to the invention comprises the exhausted sandalwood extract capable of being obtained by the process according to the invention at a concentration of 0.001 to 1% by weight relative to the total weight of the composition. , preferably from 0.1% to 1%, and a physiologically acceptable medium.
- the composition which can be used according to the invention can be applied by any suitable route, in particular external topical, and the formulation of the compositions will be adapted by those skilled in the art.
- the compositions according to the invention are provided in a form suitable for topical application.
- the term “topical application” denotes the fact of applying or spreading a composition comprising the exhausted sandalwood extract of the invention on the surface of the skin, of the scalp, of a mucous membrane. or appendages.
- the "skin” designates the skin of the face, in particular the contour of the eyes and the mouth, the nose, the forehead, the neck, the hands, but also the skin of the whole body, including the scalp .
- Scalp designates the skin covering the skull, including the hair follicles and the inter-follicular cutaneous spaces.
- the "appendages” designate the keratinized skin appendages present in humans or animals, rich in keratin, and more particularly the hair, body hair, eyelashes, eyebrows and nails.
- compositions according to the invention are particularly suitable for topical application to healthy skin.
- the term “healthy skin” is understood to mean skin which does not exhibit cutaneous pathology.
- the topical compositions for the implementation of the invention may in particular be provided in the form of an aqueous, hydroalcoholic or oily solution, of an oil-in-water, water-in-oil or emulsion emulsion. multiple, micro-emulsion, nano-emulsion or any colloidal system usable in cosmetics; they can also be in the form of suspensions, or even of powders, suitable for application to the skin, mucous membranes, lips and / or hair.
- compositions can be more or less fluid and also have the appearance of a cream, a lotion, a milk, a serum, an ointment, a gel, a gel. paste or mousse. They can also be in solid form, such as a stick, or else formulated to be compatible with delivery in aerosol form.
- adjuvants can, for example, correspond to 0.01 to 20% of the total weight of the composition.
- the fatty phase can represent from 5 to 80% by weight and preferably from 5 to 50% by weight relative to the total weight of the composition.
- the emulsifiers and co-emulsifiers used in the composition are chosen from those conventionally used in the field under consideration. For example, they can be used in a proportion ranging from 0.3 to 30% by weight relative to the total weight of the composition.
- the compositions may contain one or more additional active agents for enhancing the effect of the exhausted sandalwood extract according to the invention.
- the INCI Dictionary & Handbook (“International Nomenclature of Cosmetic Ingredients 13th Ed. 2010) published by" the Personal Care Products Council, Inc. ", Washington, DC) describes a wide variety, without limitation, of cosmetic ingredients. commonly used in the skin care industry, which are suitable for use as additional active agents in compositions according to the present invention.
- Non-limiting examples of these classes of additional active agents include: anti- age, anti-wrinkle agents, moisturizing agents, softening agents, keratolytic or desquamating agents, anti-seborrheic agents, anti-dandruff agents, agents modulating the differentiation or proliferation of skin cells, agents modulating skin skin pigmentation, self-tanning agents, anti-atmospheric pollution agents, anti-glycation agents, firming agents, agents stimulating the synthesis of aquaporin, agents stimulating the synthesis of lipids and components of the stratum corneum (ceramides, fatty acids, agents stimulating the proliferation of adipocytes, agents stimulating the synthesis of glycosaminoglycans, DNA repair agents, agents protecting l 'DNA, agents for the treatment and / or care of sensitive skin, firming agents, anti-stretch mark agents, astringent agents, skin relaxants, cytokine growth factors, agents acting on the capillary circulation and / or microcirculation, agents inhibiting
- additional active agents must not unacceptably alter the benefits of the active agents of the invention.
- These additional active agents can be synthetic or natural such as for example plant extracts or come from a biofermentation process.
- Such additional active agents can also be chosen according to their chemical composition, from the group comprising: amino sugars, glucosamine, D-glucosamine, N-acetyl-glucosamine, N-acetyl-D-glucosamine, mannosamine, N- acetyl mannosamine, galactosamine, N-acetyl galactosamine, vitamin B3 and its derivatives, niacinamide, sodium dehydroacetate, dehydroacetic acid and its salts, phytosterols, salicylic acid compounds, hexamidines, dialkanoyl dihydroxyproline compounds, extracts and soy derivatives, equol, isoflavones, flavonoids, phytantriol, farnesol, geraniol, bisabolol, peptides and their derivatives, di -, tri -, tetra -, penta -, and hexapeptides and their derivatives, lys-
- the cosmetic uses according to the present invention relate to cosmetic treatment methods by topical applications to healthy skin.
- the invention also relates to the cosmetic use of a composition according to the invention for improving the appearance of the skin, combating the signs of skin aging, improving the skin's ability to detect external pollutants and restore the cutaneous lipid barrier function.
- the invention also relates to the cosmetic use of a composition according to the invention for increasing the expression of olfactory receptors (OR2AT4) in the skin.
- OR2AT4 olfactory receptors
- the invention also relates to the cosmetic use of a composition according to the invention for lightening the skin.
- the invention also relates to the cosmetic use of a composition according to the invention for promoting hair growth.
- detecting external pollutants is understood to mean the ability of the skin to trigger its defense mechanisms making it possible to reduce the effects generated by exposure to any type of atmospheric pollutant, including in particular odorous molecules of the volatile organic compound type.
- the term “improving the appearance of the skin” is understood to mean the fact of reducing the damage resulting from environmental stresses with the aim of restoring skin function and of limiting the visible damage on the skin, such as signs of aging or skin sensitivity.
- skin sensitivity is understood to mean the reaction of healthy skin to various attacks, accompanied by signs of discomfort such as sensations of tingling, heating or tightness of the skin of the face or of the chest. scalp and possible visible reactions such as redness.
- signals of skin aging means the modifications to the external appearance of the skin due to aging chosen from wrinkles and fine lines, cracks, bags under the eyes, dark circles, wilting, loss of skin. elasticity, firmness and / or tone of the skin, irregularity of the skin texture or complexion, but also any internal changes in the skin which do not systematically result in a modified external appearance such as, for example, the thinning of the skin, or any internal degradation of the skin resulting from environmental stress (or external aggressions).
- the term “improving the lipid barrier function or the skin barrier function” is understood to mean that the protective properties of the skin against external aggressions are improved with the aim of maintaining skin integrity.
- the exhausted sandalwood extract of the invention was tested on the expression of olfactory receptors (OR2AT4) in the skin.
- OR2AT4 olfactory receptors
- the perception of odors involves olfactory (or odorant) receptors present on the nasal epithelium.
- the activation of these receptors by odorous molecules leads to specific sensations, which can serve as warning or communication signals.
- Olfactory receptors belong to the family of receptors coupled to G proteins. Their activation by an odorous molecule induces a calcium signal, indicating their functionality.
- the ectopic expression of certain types of olfactory receptors has been reported in various organs including the skin (Denda M.
- OR2AT4-type receptors have also been reported in hair follicles where they are associated with the hair growth phase (Chéret J. et al. Olfactory receptor OR2AT4 regulates human hair growth. Nat Commun 9, 3624,2018) .
- Other types of receptors have been described in the skin, in particular in keratinocytes and melanocytes (Wojcik S, Weidinger D, St S, Luger T, Hatt H, Jovancevic N.
- Example 1 Preparation of an extract of exhausted sandalwood
- white sandalwood trees Santalum album
- the raw material comes from private plantations not belonging to Commonwealth land, no Part 8A permit under the EPBC Act (Environment Protection and Biodiversity Conservation Act 1999, governing inter alia access to genetic resources and benefit sharing - ABS) is required.
- the plant part used is the spent grains of the trunk chips of the Santalum album tree, without bark, that is to say recovered after steam distillation.
- several parameters were studied, namely the rate of humidification of the plant material, the percentage of added cellulose, the extraction temperature and the co-solvent flow rate.
- Table 2 indicates some simulated results obtained by the experimental design carried out to optimize the extraction parameters: [0129] [Tables 2]
- the extraction conditions were selected in order to obtain a satisfactory extraction yield while guaranteeing the extract an interesting chemical diversity with in particular a correct content of phenolic compounds.
- the preferentially chosen extraction parameters are the following: [0131]
- the chips are moistened with 40% water (% by mass), mixed with 10% of powdered cellulose and then placed in a stainless steel cartridge. This cartridge is introduced into a supercritical fluid extractor such as the SFE 5 extractor from Separex.
- the extraction solvent used is carbon dioxide in the supercritical state at a flow rate of 15 kg / h supplemented with 96% ethanol in water (volume / volume) as polar co-solvent at a flow rate of 20 ml / min.
- the mass ratio of carbon dioxide / humidified plant is 30 and that between carbon dioxide and the co-solvent is 0.065.
- the pressure and the temperature within the extractor are respectively 300 bar and 60 ° C.
- the pressure and the temperature within the separator are respectively 55 bar and 35 ° C.
- the extract thus obtained is evaporated under vacuum until total evaporation of the ethanol (pressure less than 90 mbar at a water bath temperature of 65 ° C.).
- the extraction yield is 1.2%.
- the crude extract obtained is in the form of a paste.
- the crude extract is solubilized in agro-sourced octyldodecanol in order to obtain a solubilized extract which is in the form of a clear and fluid solution containing 1.0% of crude extract of grains of Santalum album.
- Example 2 Characterization of the raw extract of exhausted sandalwood obtained according to Example 1 The non-exhaustive list of compounds present in each of the fractions is detailed in Table 3 below: [0135] [Tables 3] A few markers of the crude extract could be quantified. This contains in particular: - 0.6% syringaldehyde; - 1.8% of (Z) -alpha-santalol; - 1.0% of (Z) -beta-santalol; - 16% volatile fraction; - 84% semi to non-volatile fraction.
- Example 3 Production of an extract of sandalwood of essential oil type
- an extraction of essential oil from sandalwood was carried out in a conventional manner, by steam distillation.
- the trunk without the bark, the branches and the roots of Santalum album are dried and then coarsely ground to give chips which are placed in separate stills to then be crossed by a stream of water vapor; this vapor releases the volatile molecules or essential oil which are entrained by the water vapor and condense in the condenser. Since the essential oil is less dense than water and is not or not very soluble in water, it is collected at the outlet in a decanter called essencier. Water that still contains trace essential oil is called hydrosol.
- Example 4 Demonstration of the major phytochemical differences between an essential oil and the extract obtained according to Example 1.
- the crude extract of exhausted sandalwood obtained in Example 1 was compared with an essential oil of Santalum album as prepared in Example 3 by analysis in high performance liquid chromatography (HPLC) coupled to a diode array detector and to a DEDL detector of solutions of the same concentration of these samples. Chromatographic analysis was carried out on a Core-Shell C18 type column according to an elution gradient using acidified mobile phases consisting of a water / ACN / IPA mixture for lane A and ACN / IPA / MeOH for lane. B.
- HPLC high performance liquid chromatography
- Figures 1 and 2 represent the DEDL and UV chromatographic profiles at 300 nm of an essential oil of sandalwood as described in Example 3 and of the crude extract of depleted sandalwood according to Example 1 , analyzed by HPLC / UV-DEDL on a Core-Shell C18 column with elution in gradient mode (0-5 min 100% A, 5-22 min change from 100% A to 100% B then 22-32 min 100% B - A: H2O / ACN / IPA / HCO2H 95 / 2.5 / 2.5 / 0.1 (v / v / v / v) and B: IPA / ACN / MeOH / HCO2H 40/40/20 / 0.1 (v / v / v / v)).
- Example 5 Evaluation of the exhausted sandalwood extract of Example 1 on the expression of olfactory receptors of the OR2AT4 type on human skin biopsies The aim of this experiment is to demonstrate an effect of sandalwood extract on the synthesis of the OR2AT4 olfactory receptor in cultured human skin biopsies.
- Protocol The expression of OR2AT4 is evaluated by indirect immunofluorescence on skin biopsies, treated beforehand by topical application of the solubilized extract of exhausted sandalwood from Example 1 at 0.1%, 0 , 5% and 1% (volume / volume percentages), for 48 hours (twice a day).
- the solubilized extract of exhausted sandalwood from Example 1 is diluted in 0.1%, 0.5% and 1% octyldodecanol (vol / vol percentages). Further biopsies received similar dilutions of sandalwood essential oil from Example 3 or a synthetic analogue Sandalore. Control biopsies incubated in parallel under the same conditions receive the placebo (octyldodecanol). At the end of the incubation, the biopsies are fixed and embedded in paraffin for the production of histological sections. The detection of the OR2AT4 receptor is carried out by incubation with anti-OR2AT4 antibody (Novus).
- Example 6 Evaluation of the exhausted sandalwood extract of Example 1 on the homeostasis of the epidermal barrier via the study of filaggrin: The aim of this experiment is to demonstrate an effect of sandalwood extract on homeostasis of the epidermal barrier via the study of filaggrin.
- Filaggrin is a protein involved in the cohesion and maintenance of hydration of the upper layer of the epidermis, essential for maintaining homeostasis of the skin barrier.
- Protocol The expression of filaggrin is evaluated by indirect immunofluorescence on skin biopsies, treated beforehand by topical application of the solubilized extract of exhausted sandalwood from Example 1, diluted in octyldodecanol at 0.1% (volume / volume percentages, twice a day), for 48 hours.
- biopsies are treated with an essential oil of sandalwood of Example 3 coming from the same geographical site and tested under the same conditions.
- Control biopsies incubated in parallel under the same conditions receive the placebo (octyldodecanol). At the end of the incubation, the biopsies are fixed and embedded in paraffin for the production of histological sections.
- filaggrin The detection of filaggrin is carried out by incubation with anti-filaggrin antibody (Santa Cruz). After an hour and a half of incubation followed by rinses, the sections are incubated in the presence of the secondary anti-mouse antibody coupled to a fluorophore (Alexa Fluor® 488, Invitrogen). The sections are then examined under an Epi-fluorescence microscope (Zeiss Axiovert 200M microscope). The expression of filaggrin is then observed and quantified by image analysis (Volocity® image analysis software, Improvision). Results: When the biopsies have been treated with 0.1% sandalwood extract, the expression of filaggrin is increased by 28%.
- the essential oil of sandalwood did not induce any increase in the expression of filaggrin or even induce a decrease.
- EGCG epigallocatechin gallate
- Example 7 Evaluation of the exhausted sandalwood extract of Example 1 on the lipid barrier function disturbed by atmospheric pollution stress via the study of ceramide synthase 3: The aim of this experiment is to demonstrate an effect of sandalwood extract on homeostasis of the epidermal barrier disturbed by polluting stress via the study of ceramide synthase 3 in human skin biopsies in culture. Ceramide synthase 3 allows the formation of ceramides from sphingosines. Ceramides are members of the sphingolipid family allowing the establishment of the barrier function but are also bioactive metabolites involved in the renewal of the epidermis. The stress applied during this experiment is carried out with the ultrafine particles coming from diesel engines.
- Protocol The expression of the enzyme ceramide synthase 3 is evaluated by indirect immunofluorescence on skin biopsies, stressed by the application of ultrafine particles from diesel emissions at 500 ⁇ g / ml for 16 hours then treated by application topically of the solubilized extract of spent sandalwood of Example 1 still diluted in octyldodecanol at 0.1% and 0.5%, and 1% (volume / volume percentages) for 48 hours (twice a day). Control biopsies incubated in parallel under the same conditions receive the placebo (octyldodecanol). At the end of the incubation, the biopsies are fixed and embedded in paraffin for the production of histological sections.
- the detection of the enzyme ceramide synthase 3 is carried out by incubation with an anti-ceramide synthase 3 antibody (Novus). After an hour and a half of incubation followed by rinsing, the sections are incubated in the presence of an anti-rabbit secondary antibody coupled to a fluorophore (Alexa Fluor® 488, Invitrogen). The sections are then examined under an Epifluorescence microscope (Zeiss Axiovert 200M microscope). The expression of the enzyme ceramide synthase 3 is then observed and quantified by image analysis (Volocity® image analysis software, Improvision). Results: After application of the ultrafine diesel particles, the expression of ceramide synthase 3 is reduced by -39%.
- Example 8 Evaluation of the lightening potential of the exhausted sandalwood extract of Example 1 on ex vivo skin biopsies
- Principle The aim of this study is to evaluate the lightening potential of the 'sandalwood extract on ex vivo skin biopsies, using the histological staining of Fontana-Masson melanin, based on the reduction of a solution of ammoniacal silver nitrate in metallic silver. The coloration obtained reveals the melanin content and is quantified by image analysis.
- Protocol Ex vivo human skin biopsies are cultured and treated with the solubilized extract of exhausted sandalwood from Example 1 or with an essential sandalwood oil from Example 3 diluted to 0 , 1% and 1% (volume / volume percentages) in octyldodecanol for 48 hours. After treatment, the biopsies are fixed for histological analysis and embedded in paraffin. After dewaxing, the sections are incubated with the ammoniacal silver nitrate solution at 60 ° C. for 10 minutes. After rinsing, they are treated with 5% sodium thiosulphate for 2 minutes, then rinsed again and mounted for examination under an Eclipse E600 microscope (Nikon).
- Example 9 Evaluation of the exhausted sandalwood extract of Example 1 on the activity of the cells of the dermal papilla of the hair follicle: [0157]
- a marker of this phase is the expression of IGF-1 (insulin-like growth factor 1) in the cells of the dermal papilla.
- IGF-1 insulin-like growth factor 1
- the HDPC (Human Dermal Papilla Cells) cells are cultured in the presence of the solubilized extract of exhausted sandalwood from Example 1, at 0.001 and 0.005% diluted in DMSO.
- the control cells receive an equivalent dilution of DMSO.
- the treatment takes place once a day over a period of 48 hours.
- the cells are then fixed on their support to proceed with the immunostaining. They are incubated in the presence of the anti-IGF-1 antibody (mouse monoclonal, SantaCruz) overnight.
- the cells are then rinsed and incubated with the second anti-mouse antibody coupled to the fluorescent marker Alexa Fluor 488 (Invitrogen) for 1 hour.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dermatology (AREA)
- Biotechnology (AREA)
- Engineering & Computer Science (AREA)
- Botany (AREA)
- Microbiology (AREA)
- Mycology (AREA)
- Birds (AREA)
- Epidemiology (AREA)
- Cosmetics (AREA)
- Medicines Containing Plant Substances (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2005085A FR3110425B1 (fr) | 2020-05-19 | 2020-05-19 | Procede d’obtention d’un extrait de bois de santal, compositions le comprenant et ses utilisations cosmetiques |
| PCT/EP2021/061634 WO2021233672A1 (fr) | 2020-05-19 | 2021-05-04 | Procede d'obtention d'un extrait de bois de santal, compositions le comprenant et ses utilisations cosmetiques |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4153319A1 true EP4153319A1 (fr) | 2023-03-29 |
Family
ID=72470471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21722249.6A Pending EP4153319A1 (fr) | 2020-05-19 | 2021-05-04 | Procede d'obtention d'un extrait de bois de santal, compositions le comprenant et ses utilisations cosmetiques |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20230165785A1 (fr) |
| EP (1) | EP4153319A1 (fr) |
| CN (1) | CN115666728B (fr) |
| FR (1) | FR3110425B1 (fr) |
| WO (1) | WO2021233672A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3146596B1 (fr) * | 2023-03-15 | 2026-01-23 | Isp Investments Llc | Procede d’obtention d’un extrait de bois de rose, compositions le comprenant et ses utilisations cosmetiques |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3107254B2 (ja) * | 1991-10-11 | 2000-11-06 | 三省製薬株式会社 | 色白化粧料 |
| FR2817748B1 (fr) | 2000-12-13 | 2003-01-17 | Seporga | Composition cosmetique et/ou dermatologique contenant un extrait d'artemia salina |
| FR2827170B1 (fr) | 2001-07-13 | 2004-07-16 | Soc Extraction Principes Actif | Utilisation de peptides pour augmenter l'adhesion cellulaire |
| FR2837098B1 (fr) | 2002-03-18 | 2004-05-28 | Vincience | Composition cosmetique ou pharmaceutique comprenant des peptides, procedes de traitement et utilisations |
| FR2841781B1 (fr) | 2002-07-03 | 2005-12-16 | Utilisation de peptides pour favoriser la regeneration cutannee | |
| FR2846883B1 (fr) | 2002-11-08 | 2004-12-24 | Vincience | Composition cosmetique comprenant, comme ingredient actif, au moins un peptide et utilisation de ce peptide |
| US7405011B2 (en) * | 2004-06-30 | 2008-07-29 | Hitachi Global Storage Technologies Netherlands B.V. | Magnetic recording media for tilted recording |
| KR101220903B1 (ko) | 2005-07-18 | 2013-01-11 | 주식회사 엘지생활건강 | 피부주름개선용 피부외용제 조성물 |
| FR2951946B1 (fr) | 2009-11-03 | 2012-05-11 | Isp Investments Inc | Utilisation d'un hydrolysat peptidique de levure en tant qu'agent actif pour renforcer le cheveu |
| FR2944526B1 (fr) | 2009-04-15 | 2013-05-10 | Isp Investments Inc | Composition cosmetique et/ou pharmaceutique comprenant un hydrolysat peptidique capable de renforcer la fonction barriere |
| FR2956818B1 (fr) | 2010-02-26 | 2012-07-20 | Isp Investments Inc | Utilisation d'un hydrolysat peptidique de lin dans une composition pour apaiser la peau |
| WO2011109411A2 (fr) * | 2010-03-01 | 2011-09-09 | Santalis Pharmaceuticals Inc. | Huile de bois de santal et ses utilisations |
| CN103494746B (zh) * | 2012-11-21 | 2015-08-26 | 四川大学华西医院 | 檀香的新用途及一种中药复方防晒组合物 |
| CN104232308B (zh) | 2014-09-18 | 2016-04-13 | 苏州经贸职业技术学院 | 一种檀香根的超临界萃取方法 |
| ITUA20163604A1 (it) * | 2016-05-19 | 2017-11-19 | Giuliani Spa | Composti atti a promuovere la crescita dei capelli nell'uomo e/o a fermarne o ritardarne la caduta, e composizioni per tali usi |
| CN108203625A (zh) * | 2018-03-16 | 2018-06-26 | 惠州学院 | 一种檀香精油的生产方法 |
| WO2020087127A1 (fr) * | 2018-10-31 | 2020-05-07 | Quintis (Australia) Pty Limited | Appareil et procédé pour la distillation continue à la vapeur de bois de santal |
| FR3091993B1 (fr) * | 2019-01-29 | 2021-01-22 | Isp Investments Llc | Procede d’obtention d’un extrait de feuilles de patchouli et ses utilisations cosmetiques |
| CN110151608A (zh) * | 2019-06-27 | 2019-08-23 | 东莞怀朴植物精油有限公司 | 一种祛痘复方精油及其制备方法 |
| CN110302129A (zh) * | 2019-08-21 | 2019-10-08 | 云南澳玛生物技术有限公司 | 一种育发防脱头皮护理液 |
| CN111073754B (zh) * | 2019-09-12 | 2022-12-27 | 天津芸熙生物技术有限公司 | 一种从澳洲檀香果中萃取檀香籽油的方法 |
-
2020
- 2020-05-19 FR FR2005085A patent/FR3110425B1/fr active Active
-
2021
- 2021-05-04 US US17/922,749 patent/US20230165785A1/en active Pending
- 2021-05-04 WO PCT/EP2021/061634 patent/WO2021233672A1/fr not_active Ceased
- 2021-05-04 EP EP21722249.6A patent/EP4153319A1/fr active Pending
- 2021-05-04 CN CN202180036252.8A patent/CN115666728B/zh active Active
Also Published As
| Publication number | Publication date |
|---|---|
| US20230165785A1 (en) | 2023-06-01 |
| CN115666728A (zh) | 2023-01-31 |
| WO2021233672A1 (fr) | 2021-11-25 |
| FR3110425A1 (fr) | 2021-11-26 |
| CN115666728B (zh) | 2025-05-02 |
| FR3110425B1 (fr) | 2022-09-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FR3065172A1 (fr) | Preparation cosmetique contenant un extrait de truffe blanche et procede cosmetique associe | |
| WO2021156104A1 (fr) | Procédé d'obtention d'un extrait aqueux de lavande, compositions comprenant un tel extrait et leurs utilisations cosmétiques | |
| EP3727413B1 (fr) | Association d'un retinoide et d'un extrait de silybum marianum (l.) gaertn | |
| EP3280497B1 (fr) | Extrait hydro-alcoolique de schinus molle, compositions cosmetiques le comprenant et leurs utilisations cosmetiques | |
| EP3917554B1 (fr) | Procede d'obtention d'un extrait de feuilles de patchouli et ses utilisations cosmetiques | |
| EP3579929B1 (fr) | Extraits de la lianemarsdenia cundurango | |
| EP4153319A1 (fr) | Procede d'obtention d'un extrait de bois de santal, compositions le comprenant et ses utilisations cosmetiques | |
| FR2999079A1 (fr) | Utilisation cosmetique d'un extrait de germe de caroube en tant qu'agent actif amincissant | |
| EP2931232B1 (fr) | Utilisation cosmetique de l'association d'un extrait de germe de caroube et de cafeine en tant qu'agent actif amincissant | |
| WO2019077268A1 (fr) | Composition cosmétique de prévention active des signes de l'âge | |
| EP4262743A1 (fr) | Extrait de dendrobium fimbriatum et composition cosmétique non rincée en comprenant | |
| EP4680192A1 (fr) | Procede d'obtention d'un extrait de bois de rose, compositions le comprenant et ses utilisations cosmetiques | |
| EP4608427A1 (fr) | Ingredient actif cosmetique issu d'une fraction non volatile d'exsudat de canarium et ses utilisations | |
| WO2025149727A1 (fr) | Combinaison d'actifs cosmétiques pour maintenir ou rééquilibrer le microbiote cutané | |
| EP4057987A1 (fr) | Utilisation cosmétique d'extrait de matière première aromatique pour protéger la peau contre la lumière bleue | |
| FR2876032A1 (fr) | Utilisation d'extraits de fougeres dans des preparations cosmetiques ou dermatologiques | |
| US20150147419A1 (en) | Compositions of Melicope Elleryana | |
| FR2946531A1 (fr) | Utilsation cosmetique d'un extrait de salvinia nymphellula desv. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20221117 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
| 17Q | First examination report despatched |
Effective date: 20240912 |