Compositions for caring for keratin materials

Abstract

A composition for caring for keratin materials comprises: at least one C-glycoside; a honey extract; and an essential oil combination of lavender oil, geranium oil and bitter orange flower oil. A non-therapeutic method for caring for a keratin material comprises applying the composition to a keratin material.

Description

Technical Field The present invention relates to cosmetic compositions. In particular, the present invention relates to compositions for the care of keratin materials. The present invention also relates to non-therapeutic methods for the care of keratin materials. Background Art The skin is the body's protective barrier. It protects the body's interior from physical damage (such as trauma) and biological damage (such as bacteria, viruses or fungi).

[0003] The development of formulations dedicated to the care of the skin and / or lips is permanent.

[0004] Hydroxypropyl Tetrahydropyrantriol is a well-known ingredient in the cosmetic industry that can instantly improve skin quality, produce good moisturization and rejuvenate the skin after long-term use.

[0005] There have been some prior art attempts to use hydroxypropyl tetrahydropyrantriol and provide good improvements in skin quality.

[0006] For example, US20210015719A1 discloses an emulsified gel composition having an emulsified gel system, which has an emulsifier and a hyaluronic acid delivery component (which includes a combination of hyaluronic acid, a hyaluronidase inhibitor and hydroxypropyl tetrahydropyrantriol), and the composition provides improved barrier function.

[0007] Recently, consumers have increasingly demanded improvements in skin quality so as to have soft, refined, and smooth skin.

[0008] It is desirable to have cosmetic products that provide a soft and smooth skin feel as well as a refined appearance. SUMMARY OF THE INVENTION The inventors have now discovered that it is possible to formulate compositions that provide a soft and smooth skin feel as well as a refined appearance.

[0010] Thus, in a first aspect, the present invention provides a composition for caring for keratin materials comprising: (i) at least one C-glycoside selected from compounds of formula (I) and their physiologically acceptable salts, their solvates such as hydrates, and their optical isomers and geometric isomers: in: -R represents saturated C1-C 10 Alkyl, especially saturated C1-C4 alkyl, which may be optionally substituted by at least one group selected from OH, COOH or COOR"2, wherein R"2 is a saturated C1-C4 alkyl, -S represents a monosaccharide or polysaccharide containing up to 20 saccharide units, in particular up to 6 saccharide units, in the pyranose and / or furanose form and of the L and / or D series, which may be substituted by necessarily free hydroxyl groups and optionally by one or more optionally protected amine functions, and -X represents a group selected from the group consisting of -CO-, -CH(OH)-, -CH(NH2)-, -CH(NHCH2CH2CH2OH)-, -CH(NHPh)- and -CH(CH3)- groups, and in particular -CO-, -CH(OH)- or -CH(NH2)- groups, and more particularly -CH(OH)- groups, The S-CH2-X bond represents a bond of isomeric nature of the C-terminus, which can be either α or β; (ii) honey extract; and (iii) an essential oil combination of lavender oil, geranium oil and petitgrain oil.

[0011] The inventors have found that the composition of the present invention can provide a soft and smooth skin feel as well as a delicate appearance.

[0012] In a second aspect, the present invention provides a non-therapeutic method for caring for keratin materials, which comprises applying to the keratin material a composition according to the first aspect of the invention.

[0013] Other advantages of the invention will emerge more clearly on reading the following description and examples. DETAILED DESCRIPTION OF THE INVENTION Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the invention belongs. When the definition of a term in this specification conflicts with the meaning commonly understood by those skilled in the art to which the invention belongs, the definition described in this article shall apply.

[0015] In the following text and unless otherwise indicated, the upper and lower limits of a numerical range are included in the range, especially in the expressions "between ... and ..." and "... to ...".

[0016] In addition, the expression "at least one" used in the present specification is equivalent to the expression "one or more".

[0017] Throughout this application, the term "comprising / includes" should be interpreted as covering all specifically mentioned features as well as optional, additional, unspecified features. As used herein, the use of the term "comprising / includes" also discloses embodiments in which there are no features other than the specifically mentioned features (i.e., "consisting of the specifically mentioned features").

[0018] Unless otherwise indicated, all numerical values ​​expressing quantities of ingredients and the like used in the specification and claims are to be understood as modified by the term “about.” Accordingly, unless indicated to the contrary, the numerical values ​​and parameters described herein are approximations that can vary as required depending on the desired purpose.

[0019] For the purposes of the present invention, the term "keratin material" is intended to cover human skin, mucous membranes (eg lips). The facial skin is most particularly contemplated according to the present invention.

[0020] Unless otherwise indicated, all percentages in the present invention are by weight.

[0021] According to a first aspect, the present invention provides a composition for caring for keratin materials comprising: (i) at least one C-glycoside; (ii) honey extract; and (iii) an essential oil combination of lavender oil, geranium oil and petitgrain oil.

[0022] C-glycoside According to a first aspect, the composition of the invention comprises at least one C-glycoside selected from compounds of formula (I), and their physiologically acceptable salts, their solvates such as hydrates, and their optical isomers and geometric isomers: in: -R represents saturated C1-C 10 alkyl, especially saturated C1-C4-alkyl, which may optionally be substituted by at least one group selected from OH, COOH or COOR"2, wherein R"2 is a saturated C1-C4-alkyl, -S represents a monosaccharide or polysaccharide containing up to 20 sugar units, especially up to 6 sugar units, which is in the form of pyranose and / or furanose and is of the L and / or D series, which monosaccharide or polysaccharide may be substituted by necessarily free hydroxyl groups and optionally by one or more optionally protected amine functions, and -X represents a group selected from the group consisting of -CO-, -CH(OH)-, -CH(NH2)-, -CH(NHCH2CH2CH2OH)-, -CH(NHPh)- and -CH(CH3)- groups, and in particular -CO-, -CH(OH)- or -CH(NH2)- groups, and more particularly -CH(OH)- groups, The S-CH2-X bond represents a bond of C-anomer isomeric nature, which may be alpha or beta.

[0023] C-glycosides useful in the practice of the invention are especially those in which R represents a saturated linear C1-C6 alkyl group, especially a saturated linear C1-C4 alkyl group, preferably a saturated linear C1-C2 alkyl group and more preferably a methyl group.

[0024] Among the alkyl radicals suitable for carrying out the invention, mention may especially be made of methyl, ethyl, isopropyl, n-propyl, n-butyl, tert-butyl, isobutyl, sec-butyl, pentyl, n-hexyl, cyclopropyl, cyclopentyl or cyclohexyl.

[0025] According to one embodiment of the invention, C-glycosides corresponding to formula (I) can be used, in which S can represent a monosaccharide or polysaccharide comprising up to 6 sugar units, in the pyranose and / or furanose form and of the L and / or D series, said monosaccharide or polysaccharide exhibiting at least one necessarily free hydroxyl function and / or optionally one or more necessarily protected amine functions, X and R otherwise retain all the definitions given above.

[0026] Advantageously, the monosaccharide according to the invention may be chosen from D-glucose, D-galactose, D-mannose, D-xylose, D-lyxose or L-fucose, L-arabinose, L-rhamnose, D-glucuronic acid, D-galacturonic acid, D-iduronic acid, N-acetyl-D-glucosamine or N-acetyl-D-galactosamine, and advantageously represents D-glucose, D-xylose, N-acetyl-D-glucosamine or L-fucose, and in particular D-xylose.

[0027] More particularly, the polysaccharide of the invention comprising up to 6 saccharide units may be chosen from D-maltose, D-lactose, D-cellobiose, D-maltotriose; a disaccharide combining an uronic acid selected from D-iduronic acid or D-glucuronic acid and a hexosamine selected from D-galactosamine, D-glucosamine, N-acetyl-D-galactosamine or N-acetyl-D-glucosamine; an oligosaccharide comprising at least one xylose, which may advantageously be chosen from xylobiose, methyl-β-xylobiose, xylotriose, xylotetrose, xylopentaose and xylohexose, and in particular xylobiose, which consists of two xylose molecules linked via a 1-4 bond.

[0028] More particularly, S may represent a monosaccharide selected from D-glucose, D-xylose, L-fucose, D-galactose or D-maltose, and especially D-xylose.

[0029] Preferably, C-glycosides of formula (I) are used, wherein: - R represents an unsubstituted straight-chain C1-C4 (especially C1-C2) alkyl group, especially a methyl group; -S represents a monosaccharide as described above and is especially chosen from D-glucose, D-xylose, N-acetyl-D-glucosamine or L-fucose, and especially D-xylose; -X represents a group selected from -CO-, -CH(OH)- or -CH(NH2)-, and is preferably a -CH(OH)- group.

[0030] The acceptable salt of the compound described in the present invention includes the conventional non-toxic salt of the compound, such as those formed by organic or inorganic acids. By way of example, salts of inorganic acids (such as sulfuric acid, hydrochloric acid) can be mentioned. Salts of organic acids that may contain one or more carboxylic acid groups, sulfonic acid groups or phosphonic acid groups can also be mentioned. Propionic acid, acetic acid, terephthalic acid, citric acid and tartaric acid can be mentioned in particular.

[0031] When the compound of formula (I) contains an acid group, the acid group can be neutralized with an inorganic base, such as LiOH, NaOH, KOH, Ca(OH)2, NH4OH, Mg(OH)2 or Zn(OH)2, or an organic base, such as a primary, secondary or tertiary alkylamine, such as triethylamine or butylamine. The primary, secondary or tertiary alkylamine may contain one or more nitrogen atoms and / or oxygen atoms and may therefore contain, for example, one or more alcohol functions; 2-amino-2-methylpropanol, triethanolamine, 2-(dimethylamino)propanol or 2-amino-2-hydroxymethyl-1,3-propanediol may be mentioned in particular. Lysine or 3-(dimethylamino)propylamine may also be mentioned.

[0032] The acceptable solvates of the compounds described in the present invention include conventional solvates, such as those formed due to the presence of solvents during the final stages of preparing the compounds. By way of example, solvates due to the presence of water or linear alcohols or branched alcohols (such as ethanol or isopropanol) can be mentioned.

[0033] Of course, according to the invention, the C-glycosides corresponding to formula (I) can be used alone or as a mixture with other C-glycosides and in any proportions.

[0034] The C-glycosides suitable for use in the present invention can be obtained in particular by the synthesis method described in document WO 02 / 051828.

[0035] By way of non-limiting illustration of C-glycoside compounds particularly suitable for the present invention, mention may be made especially of the following compounds, their isomers and their mixtures: -C-β-D-xylopyranoside-n-propan-2-one, -C-α-D-xylopyranosyl-n-propan-2-one, -C-β-D-xylopyranosyl-2-hydroxypropane, -C-α-D-xylopyranosyl-2-hydroxypropane, -1-(C-β-D-fucopyranosyl)propan-2-one, -1-(C-α-D-fucopyranosyl)propan-2-one, -1-(C-β-L-fucopyranosyl)propan-2-one, -1-(C-α-L-fucopyranosyl)propan-2-one, -1-(C-β-D-fucopyranosyl)-2-hydroxypropane, -1-(C-α-D-fucopyranosyl)-2-hydroxypropane, -1-(C-β-L-fucopyranosyl)-2-hydroxypropane, -1-(C-α-L-fucopyranosyl)-2-hydroxypropane, -1-(C-β-D-glucopyranosyl)-2-hydroxypropane, -1-(C-α-D-glucopyranosyl)-2-hydroxypropane, -1-(C-β-D-galactopyranosyl)-2-hydroxypropane, -1-(C-α-D-galactopyranosyl)-2-hydroxypropane, -1-(C-β-D-fucofuranosyl)propan-2-one, -1-(C-α-D-fucofuranosyl)propan-2-one, -1-(C-β-L-fucofuranosyl)propan-2-one, -1-(C-α-L-fucofuranosyl)propan-2-one, -C-β-D-maltopyranoside-n-propan-2-one, -C-α-D-maltopyranoside-n-propan-2-one, -C-β-D-maltopyranoside-2-hydroxypropane, -C-α-D-maltopyranoside-2-hydroxypropane.

[0036] According to one embodiment, C-β-D-xylopyranosyl-2-hydroxypropane or C-α-D-xylopyranosyl-2-hydroxypropane and still better C-β-D-xylopyranosyl-2-hydroxypropane can advantageously be used for the preparation of the composition according to the invention.

[0037] According to one particular embodiment, the C-glycoside may be C-β-D-xylopyranosyl-2-hydroxypropane (or hydroxypropyltetrahydropyrantriol) provided as a solution containing 70% by weight of active material in water and propylene glycol.

[0038] Advantageously, C-glycoside is present in the composition of the invention in an amount ranging from 0.01 wt.% to 40 wt.%, preferably from 0.05 wt.% to 25 wt.%, and more preferably from 0.1 wt.% to 15 wt.%, relative to the total weight of the composition.

[0039] Honey Extract According to a first aspect, a composition of the present invention comprises a honey extract.

[0040] Preferably, the honey from which the extract is derived comprises honey derived substantially from flowers of the genus Leptospermum.

[0041] In one embodiment, the honey from which the extract is obtained comprises honey derived substantially from the flowers of Leptospermum scoparium, Leptospermum polygalifolium, Leptospermum subtenue, and / or combinations thereof.

[0042] In one embodiment, the honey from which the extract is obtained comprises honey derived substantially from the flowers of Leptospermum scoparium (also known as Manuka).

[0043] More preferably, the honey extract is obtained from a source substantially from flowers of the genus Leptospermum.

[0044] In one embodiment, the honey extract is obtained from a floral source essentially from Leptospermum scoparium, Leptospermum polygalifolium, Leptospermum subtenue, and combinations thereof.

[0045] In one embodiment, the honey from which the extract is obtained has a floral origin substantially from Leptospermum scoparium.

[0046] As an example of a commercial product of honey extract useful in the composition of the invention, mention may be made of the honey extract sold under the name MANUKA HONEY EXTRACT GL (WATSON) by the company SOUTHERN CROSSBOTANICALS, which is a Manuka honey extract.

[0047] Advantageously, the honey extract is present in the composition in an amount ranging from 0.01 wt.% to 25 wt.%, preferably from 0.05 wt.% to 10 wt.%, and more preferably from 0.1 wt.% to 5 wt.%, relative to the total weight of the composition of the invention.

[0048] Essential oil combination According to a first aspect, a composition of the present invention comprises an essential oil combination of lavender oil, geranium oil and petitgrain oil.

[0049] Lavender Oil Lavender oil is an essential oil obtained from the lavender plant. Lavender oil can be extracted from Lavandula angustifolia (English lavender or common lavender), Lavandula burnamii, Lavandula dentata (French lavender), Lavandula dhofarensis, Lavandulalatifolia (Portuguese lavender), Lavandula officinalis, Lavandula stoechas (Spanish lavender), lavandin, other garden varieties of lavender, or a combination thereof. The oil is prepared by distilling lavender buds, capturing the vapor, and condensing the vapor into a liquid.

[0050] Lavender oil can benefit the skin in numerous ways.

[0051] The main chemical components of lavender oil are α-pinene, limonene, 1,8-cineole, cis-ocimene, trans-ocimene, 3-octanone, camphor, linalool, linalyl acetate, caryophyllene, terpene-4-ol and lavandul acetate. The compounds that cause the pleasant fragrance of lavender are linalyl acetate and linalool. Linalool (3,7-dimethyl-1,6-octadiene-3-ol) refers to two tautomers of naturally occurring terpene alcohols found in many flowers and spice plants and having a sedative effect. Linalool is shown below.

[0052] Linalool belongs to a class of organic compounds called acyclic monoterpenoids. In relation to its mechanism of action, linalool behaves as a competitive antagonist of glutamate and a noncompetitive antagonist of NMDA receptors in the cerebral cortical membranes. It is believed that linalool is responsible for the therapeutic effect of lavender oil in relieving skin burns without leaving scars (Gattefosse, "Aromatherapy," Penguin Random House, 1993).

[0053] Preferably, the lavender oil useful in the compositions of the present invention is obtained from the leaves, roots, flowers, buds or plants of Lavandula angustifolia, Lavandula burnamii, Lavandula dentate, Lavandula dhofarensis, Lavandula latifolia, Lavandula officinalis, Lavandula stoechas or a combination thereof.

[0054] More preferably, the lavender oil used is Lavandula angustifolia oil.

[0055] Advantageously, the amount of lavender oil present in the composition relative to the total weight of the composition of the present invention ranges from 0.001 wt.% to 5 wt.%, preferably from 0.001 wt.% to 1 wt.%, and more preferably from 0.001 wt.% to 0.1 wt.%.

[0056] Geranium oil Geranium is a herbaceous plant belonging to the Geranium family.

[0057] Geranium oil is available primarily in two varieties, Pelargonium roseum asperum CV Bourbon and Pelargonium roseumasperum CV North Africa (Egypt).

[0058] Their INCI names are the same, namely Pelargonium graveolens. It is therefore also referred to as essential oil of geranium. In this text, the terms "geranium oil" and "essential oil of geranium" are used without any difference in meaning.

[0059] Geranium oil consists essentially of a combination of three monoterpene alcohols, namely, citronellol (18%-32%), geraniol (8%-20%), and linalool (1.8%-11%), and the corresponding terpene esters.

[0060] Geranium oil is prepared by conventional distillation using geranium leaves and stems via steam entrainment.

[0061] Steam entrainment is equivalent to the evaporation of a substance that is slightly miscible in water in the presence of steam. The raw material is placed in a still in contact with boiling water or steam. The steam entrains the essential oil vapor, which is condensed in a condenser and recovered as a liquid phase in a Florentine vase (or essence pot), in which the essential oil is separated from the water by sedimentation. Once the separation of the essential oil has been carried out, the aqueous fraction that remains after steam entrainment is called "fragrant water" or "hydrosol" or "distilled flower water". An example of geranium oil according to the invention that may be mentioned is the geranium oil produced by Elixens under the name Pelargonium Graveolens Flower. Products for sale.

[0062] Preferably, the geranium oil is obtained from the pelargonium graveolens, pelargonium odorantissimum plant species, or both.

[0063] More preferably, the geranium oil is pelargonium graveolens flower oil.

[0064] Advantageously, geranium oil is present in the composition of the invention in an amount ranging from 0.001 wt.% to 5 wt.%, preferably from 0.001 wt.% to 1 wt.% and more preferably from 0.001 wt.% to 0.1 wt.%, relative to the total weight of the composition.

[0065] Neroli Bitter Orange Oil Bitter orange flower oil (or neroli) is a fragrance product widely used in perfumes. Neroli oil is obtained from the flowers of bitter orange (Citrus aurantium L.) by water distillation or steam distillation.

[0066] Bitter orange is also known as Citrus aurantium amara, sour orange, Seville orange or marmalade orange.

[0067] Advantageously, neroli oil is present in the composition of the invention in an amount ranging from 0.001 wt.% to 5 wt.%, preferably from 0.001 wt.% to 1 wt.%, more preferably from 0.001 wt.% to 0.1 wt.%, relative to the total weight of the composition.

[0068] Unexpectedly, the inventors have found that using an essential oil combination of lavender oil, geranium oil and petitgrain oil, a composition is obtained that provides a smoother and softer skin feel and a more refined appearance.

[0069] Water Phase The compositions of the present invention may comprise an aqueous phase.

[0070] The aqueous phase comprises water.

[0071] Preferably, the aqueous phase comprises an organic solvent miscible with water (at room temperature 25° C.) selected from ethanol, diols and polyols having 2 to 20 carbon atoms, preferably 2 to 10 carbon atoms, and preferably 2 to 6 carbon atoms, such as glycerol, propylene glycol, butylene glycol, pentylene glycol, hexylene glycol, caprylyl glycol, dipropylene glycol, diethylene glycol; and mixtures thereof, in order to provide a hydrating effect.

[0072] Advantageously, if present, the water-miscible organic solvent chosen from diols and polyols is present in the composition in an amount ranging from 0.5 wt.% to 30 wt.%, preferably from 1 wt.% to 20 wt.%, relative to the total weight of the composition.

[0073] Preferably, the aqueous phase of the composition of the present invention comprises water and glycerol.

[0074] Advantageously, if present, the aqueous phase is present in the composition of the invention in an amount ranging from 50 wt.% to 95 wt.%, preferably from 70 wt.% to 95 wt.%, relative to the total weight of the composition.

[0075] oil phase The compositions of the present invention comprise an oily phase.

[0076] In addition to the essential oils mentioned above, the oil phase may also contain additional oils.

[0077] The additional oil may be volatile or non-volatile.

[0078] The term "oil" means a water-immiscible, non-aqueous compound that is liquid at room temperature (25° C.) and atmospheric pressure (760 mmHg). The term "non-volatile oil" means a non-volatile oil that can remain on keratin materials for at least several hours at room temperature and atmospheric pressure and that has a specific viscosity of less than 10 -3 Non-volatile oils may also be defined as having an evaporation rate such that, under the conditions defined above, the amount evaporated after 30 minutes is less than 0.07 mg / cm 2 .

[0079] The additional oils may be of vegetable, mineral or synthetic origin.

[0080] The additional oil may be selected from hydrocarbon oils, silicone oils or fluorinated oils.

[0081] The term "hydrocarbon-based oil" means an oil which is essentially formed or even consists of carbon atoms and hydrogen atoms and optionally O atoms and N atoms and is free of heteroatoms Si and F. Such oils may contain alcohol, ester, ether, carboxylic acid, amine and / or amide groups.

[0082] The term "silicone oil" denotes an oil containing at least one silicon atom, in particular containing Si-O groups.

[0083] The term "fluorinated oil" means an oil containing at least one fluorine atom.

[0084] Preferably, the additional oil is selected from hydrocarbon-based oils; and silicone oils, such as polydimethylsiloxane.

[0085] Advantageously, the oil phase is present in the composition according to the invention in an amount ranging from 1 wt.% to 20 wt.%, preferably from 2 wt.% to 10 wt.%, relative to the total weight of the composition according to the invention.

[0086] Additional cosmetic active ingredients The composition according to the invention may comprise one or more additional cosmetic active ingredients other than the C-glycosides, honey extracts and essential oils mentioned above.

[0087] As examples of cosmetic active ingredients, mention may be made of natural extracts; vitamins, such as vitamin A (retinol), vitamin E (tocopherol), vitamin C (ascorbic acid), vitamin B5 (panthenol), vitamin B3 (niacinamide) and derivatives (especially esters) of said vitamins, and mixtures thereof; urea; caffeine; salicylic acid and its derivatives; alpha-hydroxy acids, such as lactic acid or glycolic acid and their derivatives; sunscreens; extracts from algae, fungi, plants, yeasts and bacteria; enzymes; humectants, such as hydroxyethyl urea; and mixtures thereof.

[0088] A person skilled in the art can easily adjust the amount of additional cosmetic active ingredients based on the final use of the composition according to the invention.

[0089] Additional auxiliaries or additives The composition of the present invention may also contain conventional cosmetic adjuvants or additives, such as surfactants, fragrances, preservatives (such as chlorphenesin, hydroxyacetophenone and phenoxyethanol) and bactericides, pH adjusters (such as citric acid), thickeners (such as xanthan gum), and mixtures thereof.

[0090] A person skilled in the art can select the amount of additional auxiliaries or additives so as not to adversely affect the end use of the composition according to the invention.

[0091] According to a particularly preferred embodiment, the invention provides a composition for caring for keratin materials comprising, relative to the total weight of the composition: (i) 0.1 wt.% to 15 wt.% of at least one C-glycoside selected from C-β-D-xylopyranosyl-2-hydroxypropane or C-α-D-xylopyranosyl-2-hydroxypropane, and combinations thereof; (ii) 0.1 wt.% to 5 wt.% of Manuka honey extract; and (iii) 0.001 wt.% - 0.1 wt.% of Lavandula angustifolia oil, 0.001 wt.% - 0.1 wt.% of Pelargonium graveolens flower oil, and 0.001 wt.% - 0.1 wt.% of Nerolidol oil.

[0092] Galenic form and method The composition of the present invention may be in the form of an emulsion, gel, cream or lotion.

[0093] The compositions according to the invention can be used for caring for keratin materials, for example the face.

[0094] According to a second aspect, the present invention provides a non-therapeutic method for caring for keratin materials, which comprises applying to the keratin material a composition according to the first aspect of the invention.

[0095] In particular, the keratin material is the skin, especially the face.

[0096] The following examples serve to illustrate the invention but are non-limiting in nature. Example The main raw materials used, their trade names and suppliers are listed in Table 1. Table 1

[0098] Inventive Examples 1-2 and Comparative Example 1 The compositions of Inventive Examples (IE.) 1-2 and Comparative Example (CE.) 1 were prepared according to the amounts given in Table 2. The amount of each component is given as % by weight of the total weight of the composition in which it is contained. Table 2 INCIUE Type of cosmetics IE.1 IE.2 CE.1 Dimethicone Silicone oil 2.00 0.95 2.00 Phenoxyethanol preservative 0.90 0.90 0.90 Xanthan gum polymer 0.10 0.01 0.05 Honey Extract Active compounds 1.05 1.05 0.1 <![CDATA[Hydroxypropyltetrahydropyrantriol 1) > Active compounds 0.11 0.11 0.58 Lavandula angustifolia oil Essential Oils 0.002 0.002 / Pelargonium graveolens flower oil Essential Oils 0.001 0.001 / Bitter Orange (Citrus aurantium amara) Flower Oil Essential Oils 0.001 0.001 / water Solvents Appropriate amount up to 100 Appropriate amount up to 100 Live volume up to 100

[0099] The composition of Inventive Example 1-2 is a composition according to the present invention.

[0100] The composition of Comparative Example 1 does not include lavandula angustifolia oil, pelargonium graveolens flower oil, and citrus aurantium amara flower oil.

[0101] Preparation method: Taking the composition of Inventive Example 1 as an example, the composition listed above was prepared as follows: 1). Add water, phenoxyethanol and xanthan gum into the main container under stirring and heat to a temperature of up to 70°C to obtain a uniform mixture; 2). Cool the homogeneous mixture to about 60°C in the main container; 3). Add polydimethylsiloxane to the main container while stirring to obtain a uniform combination; 4). Cool the uniform combination to below 40°C; 5). Premixing hydroxypropyl tetrahydropyrantriol, honey extract, lavandula angustifolia oil, pelargonium graveolens flower oil and citrus aurantium amara flower oil into a mixture; 6). Add this mixture into the main container below 40°C with stirring to obtain a homogeneous composition.

[0102] Evaluate Viscosity Once prepared, the viscosity of the composition is measured at 25°C using a Rheomat 100 Plus viscometer equipped with an M2 or M3 spindle, the measurement being carried out after the spindle has been rotated in the composition at a shear rate of 200 rpm for 10 minutes (after said time, the viscosity is observed to be stable and the rotation speed of the spindle is stable).

[0103] stability Stability was assessed as follows.

[0104] 1) Place 40 mL of sample into a 60 mL glass bottle, and prepare 7 bottles for each composition to be tested; 2) One bottle was placed under UV light (for UV testing); one bottle was placed at room temperature, one bottle was placed in a refrigerator at 4°C, one bottle was placed in an oven at 37°C, one bottle was placed in an oven at 45°C, and one bottle was placed in an oven at 55°C (for stability testing at different temperatures); and one bottle was placed in an oven with a temperature cycle from -20°C to 20°C (for cyclic stability); and 3) For UV stability testing, observe the appearance of the sample after 24 hours; for stability testing at room temperature, 4°C, 37°C and 45°C, observe the appearance of the sample after 2 months; for stability testing at 55°C, observe the appearance of the sample after 1 week; or for cyclic stability testing, observe the appearance of the sample after 10 days.

[0105] If after all the stability tests mentioned above, the composition shows no visible change in appearance, color and odor, and its viscosity and pH and particle size of emulsion droplets do not change by more than 7%, the stability of the composition is evaluated as passed, otherwise it is evaluated as failed.

[0106] The results of viscosity and stability of each composition prepared above are summarized in Table 3. Table 3 nature IE.1 IE.2 CE.1 Viscosity (UD) 65(M3) 50-75(M2) 43(M3) stability Stablize Stablize Stablize

[0107] Cosmetic performance (TIMM efficacy) The cosmetic properties of the compositions of Inventive Examples 1-2 and the composition of Comparative Example 1 were evaluated as follows.

[0108] 62 female consumers aged 20-45 were invited to apply the composition to be evaluated, and fill in a questionnaire on skin smoothness, texture, and fineness after applying the composition to be evaluated, based on their satisfaction.

[0109] Performance levels were given based on the following criteria as to whether (i) the skin felt softer, (ii) the skin texture was finer, and (iii) the skin felt smoother. Consumer agreement rate (%) Performance Level 90 and above Excellent 80-90 very good 70-80 good 60-70 medium Below 60 No obvious effect

[0110] The results for consumer agreement rates and performance levels are summarized in Table 4 below. Table 4

[0111] As can be seen from Table 4, compared with the composition of Comparative Example 1, the compositions of Inventive Examples 1 and 2 perform better in terms of skin softness, fineness and smoothness.

Claims

1. A composition for caring for keratin materials, comprising: (i) at least one C-glycoside selected from the group consisting of compounds of formula (I), and their physiologically acceptable salts, their solvates such as hydrates, and their optical isomers and geometric isomers: in: -R represents saturated C1-C 10 Alkyl, especially saturated C1-C4 alkyl, which may be optionally substituted by at least one group selected from OH, COOH or COOR"2, wherein R"2 is a saturated C1-C4 alkyl, -S represents a monosaccharide or polysaccharide containing up to 20 saccharide units, in particular up to 6 saccharide units, in the pyranose and / or furanose form and of the L and / or D series, which may be substituted by necessarily free hydroxyl groups and optionally by one or more optionally protected amine functions, and -X represents a group selected from the group consisting of -CO-, -CH(OH)-, -CH(NH2)-, -CH(NHCH2CH2CH2OH)-, -CH(NHPh)- and -CH(CH3)- groups, and in particular -CO-, -CH(OH)- or -CH(NH2)- groups, and more particularly -CH(OH)- groups, The S-CH2-X bond represents a bond of isomeric nature of the C-terminus, which can be either α or β; (ii) honey extract; and (iii) an essential oil combination of lavender oil, geranium oil and petitgrain oil.

2. The composition according to claim 1, wherein the C-glycoside is selected from: -C-β-D-xylopyranoside-n-propan-2-one, -C-α-D-xylopyranosyl-n-propan-2-one, -C-β-D-xylopyranosyl-2-hydroxypropane, -C-α-D-xylopyranosyl-2-hydroxypropane, -1-(C-β-D-fucopyranosyl)propan-2-one, -1-(C-α-D-fucopyranosyl)propan-2-one, -1-(C-β-L-fucopyranosyl)propan-2-one, -1-(C-α-L-fucopyranosyl)propan-2-one, -1-(C-β-D-fucopyranosyl)-2-hydroxypropane, -1-(C-α-D-fucopyranosyl)-2-hydroxypropane, -1-(C-β-L-fucopyranosyl)-2-hydroxypropane, -1-(C-α-L-fucopyranosyl)-2-hydroxypropane, -1-(C-β-D-glucopyranosyl)-2-hydroxypropane, -1-(C-α-D-glucopyranosyl)-2-hydroxypropane, -1-(C-β-D-galactopyranosyl)-2-hydroxypropane, -1-(C-α-D-galactopyranosyl)-2-hydroxypropane, -1-(C-β-D-fucofuranosyl)propan-2-one, -1-(C-α-D-fucofuranosyl)propan-2-one, -1-(C-β-L-fucofuranosyl)propan-2-one, -1-(C-α-L-fucofuranosyl)propan-2-one, -C-β-D-maltopyranoside-n-propan-2-one, -C-α-D-maltopyranoside-n-propan-2-one, -C-β-D-maltopyranoside-2-hydroxypropane, -C-α-D-maltopyranoside-2-hydroxypropane, their isomers and mixtures thereof.

3. The composition according to claim 1 or 2, wherein the C-glycoside is present in an amount ranging from 0.01 wt.% to 40 wt.%, preferably 0.05 wt.% to 25 wt.%, and more preferably 0.1 wt.% to 15 wt.%, relative to the total weight of the composition.

4. The composition according to any one of claims 1 to 3, wherein the honey extract is obtained from a floral source substantially from the genus Leptospermum, preferably the honey extract is obtained from a floral source substantially from the genus Leptospermum scoparium, Leptospermum polygalifolium, Leptospermum subtenue, and combinations thereof.

5. The composition according to any one of claims 1 to 4, wherein the honey extract is present in an amount ranging from 0.01 wt.% to 25 wt.%, preferably 0.05 wt.% to 10 wt.%, and more preferably 0.1 wt.% to 5 wt.%, relative to the total weight of the composition.

6. The composition of any one of claims 1-5, wherein the lavender oil is obtained from the leaves, roots, flowers, buds or plants of Lavandula angustifolia, Lavandula burnamii, Lavandula dentate, Lavandula dhofarensis, Lavandula latifolia, Lavandula officinalis, Lavandula stoechas or a combination thereof.

7. The composition according to any one of claims 1 to 6, wherein the lavender oil is present in an amount ranging from 0.001 wt.% to 5 wt.%, preferably 0.001 wt.% to 1 wt.%, and more preferably 0.001 wt.% to 0.1 wt.%, relative to the total weight of the composition.

8. The composition of any one of claims 1-7, wherein the geranium oil is obtained from the pelargonium graveolens, pelargonium odorantissimum plant species, or both, preferably, the geranium oil is pelargonium graveolens flower oil.

9. The composition according to any one of claims 1 to 8, wherein the geranium oil is present in an amount ranging from 0.001 wt.% to 5 wt.%, preferably 0.001 wt.% to 1 wt.%, and more preferably 0.001 wt.% to 0.1 wt.%, relative to the total weight of the composition.

10. The composition according to any one of claims 1 to 9, wherein the neroli oil is present in an amount ranging from 0.001 wt.% to 5 wt.%, preferably 0.001 wt.% to 1 wt.%, more preferably 0.001 wt.% to 0.1 wt.%, relative to the total weight of the composition.

11. The composition according to claim 1, comprising, relative to the total weight of the composition: (i) 0.1 wt.% to 15 wt.% of at least one C-glycoside selected from C-β-D-xylopyranosyl-2-hydroxypropane or C-α-D-xylopyranosyl-2-hydroxypropane, and combinations thereof; (ii) 0.1 wt.% to 5 wt.% of Manuka honey extract; and (iii) 0.001 wt.% - 0.1 wt.% of Lavandula angustifolia oil, 0.001 wt.% - 0.1 wt.% of Pelargonium graveolens flower oil, and 0.001 wt.% - 0.1 wt.% of Nerolidol oil.

12. A non-therapeutic method for caring for keratin materials, comprising applying to said keratin materials a composition according to any one of claims 1 to 11.

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