Composition comprising taraxacum officinale extract

Abstract

The present invention relates to a composition comprising: (a) at least one Taraxacum Officinale extract; (b) at least one glycol; and (c) at least one polyglyceryl fatty acid monoester, wherein the amount of the (c) polyglyceryl fatty acid monoester(s) is more than 0.2% by weight relative to the total weight of the composition. The composition according to the present invention can increase the amount of an oligosaccharide, such as oligofructan, penetrated into a keratin substance such as skin. The composition according to the present invention can provide enhanced skin care effects, in particular enhanced skin brightening effects.

Description

[0001] DESCRIPTION

[0002] TITLE OF INVENTION

[0003] COMPOSITION COMPRISING TARAXACUM OFFICINALE EXTRACT

[0004] TECHNICAL FIELD

[0005] The present invention relates to a composition including a Taraxacum Officinale extract, as well as a cosmetic process using the composition.

[0006] BACKGROUND ART

[0007] The formulation of environmentally-friendly cosmetic products, which are designed and developed considering environmental issues, is becoming a major goal in an effort to meet global challenges.

[0008] It is therefore essential to propose more sustainable compositions, preparation processes and ingredients to address these environmental concerns.

[0009] In this context, it is important to develop new cosmetic compositions with a better carbon footprint, particularly by promoting the use of renewable raw materials and / or materials with a good index of naturalness and / or materials of natural origin and, more particularly, materials of plant origin while reducing the use of compounds of petrochemical origin.

[0010] It is known that a Taraxacum Officinale (dandelion) extract has some functions useful for cosmetic applications. For example, JP-A-2016-88939 discloses that a dandelion extract may promote the generation of hyaluronic acid in the skin.

[0011] US-A-2017 / 0049692 discloses that Taraxacum Officinale includes fructan, and that a Taraxacum Officinale extract can reduce the accumulation of oxidized proteins from environmental pollutions, trapping them and once removed leaving an improved radiance, complexion and skin grain.

[0012] WO 2001 / 66079 discloses a lotion (Example 6) including a herb extract obtained from a mixture of plants including dandelion.

[0013] DISCLOSURE OF INVENTION

[0014] There is a need for a composition which includes a Taraxacum Officinale extract and which can promote the effects on a keratin substance, such as skin, provided by the Taraxacum Officinale extract, in particular those provided by the active ingredient included in the Taraxacum Officinale extract.

[0015] Thus, an objective of the present invention is to provide a composition which can promote the penetration of an oligosaccharide in a Taraxacum Officinale extract into a keratin substance such as skin.

[0016] The above objective of the present invention can be achieved by a composition, preferably a cosmetic composition, and more preferably a skin cosmetic composition, comprising: (a) at least one Taraxacum Officinale extract;

[0017] (b) at least one glycol; and

[0018] (c) at least one polyglyceryl fatty acid monoester, wherein the amount of the (c) polyglyceryl fatty acid monoester is more than 0.2% by weight relative to the total weight of the composition.

[0019] The amount of the (a) Taraxacum Officinale extract(s) in the composition according to the present invention may be from 0.01% to 5% by weight, preferably from 0.05% to 3% by weight, and more preferably from 0.1% to 1% by weight, relative to the total weight of the composition.

[0020] The (b) glycol may be selected from the group consisting of propylene glycol, pentylene glycol, and mixtures thereof.

[0021] The amount of the (b) glycol(s) in the composition according to the present invention may be from 0.1% to 20% by weight, preferably from 0.5% to 15% by weight, and more preferably from 1% to 10% by weight, relative to the total weight of the composition.

[0022] The (c) polyglyceryl fatty acid mono ester may comprise 2 to 4 glycerol units.

[0023] The amount of the (c) polyglyceryl fatty acid monoester(s) in the composition according to the present invention may be from 0.3% to 10% by weight, preferably from 0.5% to 5% by weight, and more preferably from 1% to 3% by weight, relative to the total weight of the composition.

[0024] The composition according to the present invention may further comprise (d) water, preferably in an amount of from 50% to 95% by weight, more preferably from 60% to 93% by weight, and even more preferably from 70% to 90% by weight, relative to the total weight of the composition.

[0025] The composition according to the present invention may further comprise (e) at least one oil.

[0026] The (e) oil may be selected from ester oils.

[0027] The amount of the (e) oil(s) in the composition according to the present invention may be from 0.01% to 10% by weight, preferably from 0.05% to 5% by weight, and more preferably from 0.1% to 1% by weight, relative to the total weight of the composition.

[0028] The composition according to the present invention may further comprise (f) at least one anionic surfactant.

[0029] The (f) anionic surfactant may be selected from amino acid surfactants.

[0030] The amount of the (f) anionic surfactant(s) in the composition according to the present invention may be from 0.01% to 10% by weight, preferably from 0.05% to 5% by weight, and more preferably from 0.1% to 1% by weight, relative to the total weight of the composition.

[0031] The present invention also relates to a cosmetic process for a keratin substance such as skin, comprising: applying the composition according to the present invention to the keratin substance.

[0032] The present invention also relates to a use of a combination of

[0033] (b) at least one glycol; and

[0034] (c) at least one polyglyceryl fatty acid monoester, in a composition comprising

[0035] (a) at least one Taraxacum Officinale extract; wherein the amount of the (c) polyglyceryl fatty acid monoester is more than 0.2% by weight relative to the total weight of the composition in order to enhance the penetration of an oligosaccharide in the (a) Taraxacum Officinale extract into a keratin substance such as skin.

[0036] BEST MODE FOR CARRYING OUT THE INVENTION

[0037] After diligent research, the inventors have discovered that it is possible to provide a composition which can promote the absorption of the oligosaccharide in a Taraxacum Officinale extract into a keratin substance such as skin.

[0038] Thus, the composition according to the present invention comprises:

[0039] (a) at least one Taraxacum Officinale extract;

[0040] (b) at least one glycol; and

[0041] (c) at least one polyglyceryl fatty acid monoester, wherein the amount of the (c) polyglyceryl fatty acid monoester is more than 0.2% by weight relative to the total weight of the composition.

[0042] The (a) Taraxacum Officinale (dandelion) extract, preferably a Taraxacum Officinale rhizome or root extract, includes an oligosaccharide such as oligofructan. The oligofructan may be linear or branched. The linear oligofructan may be based on inulin and levan. The branched fructan may be based on graminans. The oligosaccharide such as oligofructan may have a degree of polymerization of from 2 to 26.

[0043] The composition according to the present invention can increase the amount of oligosaccharide, such as oligofructan, penetrated into a keratin substance such as skin. In particular, the composition according to the present invention can enhance the skin absorption or skin penetration of the oligosaccharide included in the Taraxacum Officinale extract, preferably a Taraxacum Officinale rhizome or root extract.

[0044] The increased amount of oligosaccharide absorbed by a keratin substance such as akin can enhance the cosmetic effects, on the keratin substance such as skin, provided by the oligosaccharide.

[0045] A Taraxacum Officinale extract is known to improve radiance, complexion and grain of the skin. Therefore, the composition according to the present invention can provide enhanced improvement effects on radiance, complexion and grain of the skin. In addition, the composition according to the present invention can enhance skin brightening effects provided by the Taraxacum Officinale extract. Also, a Taraxacum Officinale extract is known to function as an anti-pollution agent or a free radical scavenger (anti-oxidant). Therefore, the composition according to the present invention can provide enhanced protection of a keratin substance such as skin from environmental pollution or oxidation.

[0046] Accordingly, the composition according to the present invention can provide enhanced skin care effects, in particular enhanced skin brightening effects.

[0047] Hereinafter, the present invention will be explained in a more detailed manner.

[0048] [Composition]

[0049] (Taraxacum Officinale Extract)

[0050] The composition according to the present invention comprises (a) at least one Taraxacum Officinale extract. Two or more Taraxacum Officinale extracts may be used in combination. Thus, a single type of Taraxacum Officinale extract or a combination of different types of Taraxacum Officinale extracts may be used.

[0051] Taraxacum Officinale, i.e., dandelion, is a flowering herbaceous perennial plant of the dandelion genus in the family Asteraceae (syn. Compositae). The dandelion is well known for its yellow flower heads that turn into round balls of many silver-tufted fruits that disperse in the wind. Examples of Taraxacum Officinale that can be used include those that are commercially available and cultivated or harvested in nature.

[0052] The (a) Taraxacum Officinale extract, preferably a Taraxacum Officinale rhizome or root extract, can include an oligosaccharide such as oligofructan. The oligofructan may be linear or branched. The linear oligofructan may be based on inulin and levan. The branched oligofructan may be based on graminans. The oligosaccharide such as oligofructan may have a degree of polymerization of from 2 to 26.

[0053] The (a) Taraxacum Officinale extract can be obtained from natural plants or plant tissue cultures of Taraxacum Officinale cells.

[0054] The (a) Taraxacum Officinale extract can be obtained by extraction of Taraxacum Officinale, and preferably the rhizome or root of Taraxacum Officinale.

[0055] The term “extract” here includes an extract in any form such as a liquid or a powder that can be obtained via any extraction process. The extract may be obtained by an extraction process, with or without diluting, purifying, or drying. Specifically, the (a) Taraxacum Officinale extract can be produced and used in the form of a dried powder after extraction.

[0056] The extraction process for producing the (a) Taraxacum Officinale extract is not particularly limited, and extraction can be performed according to a method ordinarily used in the art. Non-limiting examples of the extraction process include a hydrothermal extraction method, an ultrasonic extraction method, a filtration method, a reflux extraction method, and the like. These extraction processes can be performed alone, or two or more methods can be used in combination. Furthermore, in order to obtain a high-purity extract, the extract may be further extracted one or more times by the Same method. The type of solvent used to produce the (a) Taraxacum Officinale extract is not particularly limited, and any solvent known in the art can be used. For example, one or more solvents selected from the group consisting of water, alcohols having from 1 to 4 carbon atoms, and a mixture thereof can be used. More specifically, a mixture of water and ethanol can be used as an extraction solvent.

[0057] The (a) Taraxacum Officinale extract, preferably a Taraxacum Officinale rhizome or root extract, can improve radiance, complexion and grain of a keratin substance such as skin. Therefore, the (a) Taraxacum Officinale extract, preferably Taraxacum Officinale rhizome or root extract, can provide skin brightening effects.

[0058] Also, (a) Taraxacum Officinale extract, preferably a Taraxacum Officinale rhizome or root extract, can function as an anti-pollution agent or a free radical scavenger (anti-oxidant), and therefore, it can protect a keratin substance such as skin from environmental pollution or oxidation.

[0059] As the (a) Taraxacum Officinale extract, preferably a Taraxacum Officinale rhizome or root extract, a commercial product, such as Apolluskin® sold by Silab in France may be used.

[0060] The amount of the (a) Taraxacum Officinale extract(s) in the composition according to the present invention may be 0.01% by weight or more, preferably 0.05% by weight or more, and more preferably 0.1% by weight or more, relative to the total weight of the composition.

[0061] The amount of the (a) Taraxacum Officinale extract(s) in the composition according to the present invention may be 5% by weight or less, preferably 3% by weight or less, and more preferably 1% by weight or less, relative to the total weight of the composition.

[0062] The amount of the (a) Taraxacum Officinale extract(s) in the composition according to the present invention may be from 0.01% to 5% by weight, preferably from 0.05% to 3% by weight, and more preferably from 0.1% to 1% by weight, relative to the total weight of the composition.

[0063] (Glycol)

[0064] The composition according to the present invention comprises (b) at least one glycol. Two or more glycols may be used in combination. Thus, a single type of glycol or a combination of different types of glycols may be used.

[0065] The (b) glycol may be selected from aliphatic hydrocarbons having 2 hydroxy groups.

[0066] It may be preferable that the (b) glycol be selected from linear or branched, saturated or unsaturated, aliphatic hydrocarbons having 2 hydroxy groups. The (b) glycol may or may not have at least one substituent selected from halogen atoms such as fluorine, chlorine and bromine atoms.

[0067] The (b) glycol may have at least one heteroatom in the backbone thereof. The heteroatom is preferably selected from O, N and S. Preferably, the heteroatom is O.

[0068] Examples of the (b) glycol includes C3-C6glycols such as propylene glycol, butylene glycol, pentylene glycol, hexylene glycol, diethylene glycol, dipropylene glycol, and a mixture thereof.

[0069] It is preferable that the (b) glycol be selected from the group consisting of propylene glycol, pentylene glycol, and a mixture thereof.

[0070] It is more preferable that the (b) glycol be pentylene glycol.

[0071] The amount of the (b) glycol(s) in the composition according to the present invention may be 0.1% by weight or more, preferably 0,5% by weight or more, and more preferably 1% by weight or more, relative to the total weight of the composition.

[0072] The amount of the (b) glycol(s) in the composition according to the present invention may be 20% by weight or less, preferably 15% by weight or less, and more preferably 10% by weight or less, relative to the total weight of the composition.

[0073] The amount of the (b) glycol(s) in the composition according to the present invention may be from 0.1% to 20% by weight, preferably from 0.5% to 15% by weight, and more preferably from 1% to 10% by weight, relative to the total weight of the composition.

[0074] (Polyglyceryl Fatty Acid Monoester)

[0075] The composition according to the present invention comprises (c) at least one polyglyceryl fatty acid monoester. Two or more polyglyceryl fatty acid monoesters may be used in combination. Thus, a single type of polyglyceryl fatty acid monoester or a combination of different types of polyglyceryl fatty acid monoesters may be used.

[0076] It is preferable that the (c) polyglyceryl fatty acid monoester have a polyglycerol moiety derived from 2 to 8 glycerols, more preferably from 2 to 6 glycerols, and even more preferably from 2 to 4 glycerols.

[0077] The (c) polyglyceryl fatty acid monoester may have an HLB (Hydrophilic Lipophilic Balance) value of from 7.0 to 16.0, preferably from 8.0 to 15.0, and more preferably from 9.0 to 14.0. If two or more polyglyceryl fatty acid monoesters are used, the HLB value is determined by the weighted average of the HLB values of all the polyglyceryl fatty acid monoesters.

[0078] The (c) polyglyceryl fatty acid monoester may be chosen from monoesters of a saturated or unsaturated acid, including from 4 to 22 carbon atoms, preferably from 6 to 20 carbon atoms, and more preferably from 8 to 18 carbon atoms, such as lauric acid, oleic acid, stearic acid, isostearic acid, capric acid, caprylic acid, and myristic acid.

[0079] The amount of the (c) polyglyceryl fatty acid monoester(s) in the composition according to the present invention is 0.2% by weight relative to the total weight of the composition.

[0080] The amount of the (c) polyglyceryl fatty acid monoester(s) in the composition according to the present invention may be 0.3% by weight or more, preferably 0.5% by weight or more, and more preferably 1% by weight or more, relative to the total weight of the composition.

[0081] The amount of the (c) polyglyceryl fatty acid monoester(s) in the composition according to the present invention may be 10% by weight or less, preferably 5% by weight or less, and more preferably 3% by weight or less, relative to the total weight of the composition.

[0082] The amount of the (c) polyglyceryl fatty acid monoester(s) in the composition according to the present invention may range from 0.3% to 10% by weight, preferably from 0.5% to 5% by weight, more preferably from 1% to 3% by weight, relative to the total weight of the composition.

[0083] It is preferable that the composition according to the present invention comprises at least two polyglyceryl fatty acid monoesters, as the first and second polyglyceryl fatty acid monoesters.

[0084] First Polyglyceryl Fatty Acid Monoester:

[0085] The first polyglyceryl fatty acid monoester may have an HLB value of more than 8.0 and less than 17.0, preferably from 8.5 to 16.0, and more preferably from 9.0 to 15.0.

[0086] It is preferable that the first polyglyceryl fatty acid monoester comprises 2 to 4 glycerol units.

[0087] The fatty acid for the fatty acid moiety of the first polyglyceryl fatty acid monoester may comprise 12 or fewer carbon atoms, preferably 11 or fewer carbon atoms, and more preferably 10 or fewer carbon atoms. The fatty acid for the fatty acid moiety of the first polyglyceryl fatty acid monoester may comprise 4 or more carbon atoms, preferably 6 or more carbon atoms, and more preferably 8 or more carbon atoms. The fatty acid for the fatty acid moiety of the first polyglyceryl fatty acid monoester may have from 4 to 12 carbon atoms, preferably from 6 to 11 carbon atoms, and more preferably from 8 to 10 carbon atoms.

[0088] The fatty acid for the fatty acid moiety of the first polyglyceryl fatty acid monoester may be saturated or unsaturated, and may be selected from caprylic acid, capric acid, and lauric acid.

[0089] The first polyglyceryl fatty acid monoester may be selected from the group consisting of PG2 caprate (HLB: 9.5), PG4 caprylate (HLB: 14), PG4 laurate (HLB: about 14), PG4 caprate (HLB: 14), PG5 myristate (HLB: 15.4), PG5 stearate (HLB: 15), PG6 caprylate (HLB: 14.6), PG6 caprate (HLB: 13.1), PG6 laurate (HLB: 14.1), PG10 laurate (HLB: 15.2), PG10 myristate (HLB: 14.9), PG10 stearate (HLB: 14.1), PG10 isostearate (HLB: 13.7), PG10 oleate (HLB: 13.0), PG10 cocoate (HLB: 16), and a mixture thereof.

[0090] It is preferable that the first polyglyceryl fatty acid monoester be selected from the group consisting of PG2 caprate (HLB: 9.5), PG4 caprylate (HLB: 14), PG4 laurate (HLB: about 14), PG4 caprate (HLB: 14), and a mixture thereof.

[0091] The amount of the first polyglyceryl fatty acid monoester in the composition according to the present invention may be 0.1% by weight or more, preferably 0.2% by weight or more, and more preferably 0.3% by weight or more, relative to the total weight of the composition.

[0092] The amount of the first polyglyceryl fatty acid monoester in the composition according to the present invention may be 5% by weight or less, preferably 4% by weight or less, and more preferably 3% by weight or less, relative to the total weight of the composition.

[0093] The amount of the first polyglyceryl fatty acid monoester in the composition according to the present invention may range from 0.1% to 6% by weight, preferably from 0.2% to 4% by weight, and more preferably from 0.3% to 2% by weight, relative to the total weight of the composition.

[0094] Second Polyglyceryl Fatty Acid Monoester:

[0095] The second polyglyceryl fatty acid monoester may have an HLB value of from 4.0 to 8.0, preferably from 4.5 to 7.5, and more preferably from 5.0 to 7.0.

[0096] It is preferable that the second polyglyceryl fatty acid monoester comprises 2 to 4 glycerol units, preferably 2 or 3 glycerol units, and more preferably 2 glycerol units.

[0097] The fatty acid for the fatty acid moiety of the second polyglyceryl fatty acid monoester may comprise 14 or more carbon atoms, preferably 16 or more carbon atoms, and more preferably 18 or more carbon atoms. The fatty acid for the fatty acid moiety of the second polyglyceryl fatty acid monoester may comprise 24 or fewer carbon atoms, preferably 22 or fewer carbon atoms, and more preferably 20 or fewer carbon atoms. The fatty acid for the fatty acid moiety of the second polyglyceryl fatty acid monoester may have from 14 to 24, preferably from 16 to 22, and more preferably from 18 to 20 carbon atoms.

[0098] The fatty acid for the fatty acid moiety of the second polyglyceryl fatty acid monoester may be saturated or unsaturated, and may be selected from myristic acid, stearic acid, isostearic acid, and oleic acid.

[0099] The second polyglyceryl fatty acid monoester may be selected from the group consisting of PG2 stearate (HLB: 5.0), PG2 isostearate (HLB: 5.5), PG2 oleate (HLB: 7), and a mixture thereof.

[0100] The amount of the second polyglyceryl fatty acid monoester in the composition according to the present invention may be 0.01% by weight or more, preferably 0.05% by weight or more, and more preferably 0.1% by weight or more, relative to the total weight of the composition.

[0101] The amount of the second polyglyceryl fatty acid monoester in the composition according to the present invention may be 10% by weight or less, preferably 5% by weight or less, and more preferably 1% by weight or less, relative to the total weight of the composition.

[0102] The amount of the second polyglyceryl fatty acid monoester in the composition according to the present invention may range from 0.01% to 10% by weight, preferably from 0.05% to 5% by weight, more preferably from 0.1% to 1% by weight, relative to the total weight of the composition.

[0103] (Water)

[0104] The composition according to the present invention may comprise (d) water.

[0105] The (d) water can constitute an aqueous phase which can be, for example, a continuous phase in the composition according to the present invention.

[0106] The amount of the (d) water may be 50% by weight or more, preferably 60% by weight or more, and more preferably 70% by weight or more, relative to the total weight of the composition. The amount of the (d) water may be 95% by weight or less, preferably 93% by weight or less, and more preferably 90% by weight or less, relative to the total weight of the composition.

[0107] The amount of the (d) water may be from 50% to 95% by weight, preferably from 60% to 93% by weight, and more preferably from 70% to 90% by weight, relative to the total weight of the composition.

[0108] (Oil)

[0109] The composition according to the present invention may comprise (e) at least one oil. Two or more oils may be used in combination. Thus, a single type of oil or a combination of different types of oils may be used.

[0110] Here, “oil” means a fatty compound or substance which is in the form of a liquid or a paste (non-solid) at room temperature (25°C) under atmospheric pressure (760 mmHg). As the oils, those generally used in cosmetics can be used alone or in combination thereof. These oils may be volatile or non-volatile.

[0111] The (e) oil can constitute a fatty phase which can be, for example, discontinuous phases or dispersed phases in the composition according to the present invention.

[0112] The (e) oil may be a non-polar oil such as a hydrocarbon oil, a silicone oil, or the like; a polar oil such as a plant or animal oil and an ester oil or an ether oil; or a mixture thereof.

[0113] The (e) oil may be selected from the group consisting of oils of plant or animal origin, synthetic oils, silicone oils, hydrocarbon oils, and fatty alcohols.

[0114] As examples of plant oils, mention may be made of, for example, linseed oil, camellia oil, macadamia nut oil, corn oil, mink oil, olive oil, avocado oil, sasanqua oil, castor oil, safflower oil, jojoba oil, sunflower oil, almond oil, rapeseed oil, sesame oil, soybean oil, peanut oil, and mixtures thereof.

[0115] As examples of animal oils, mention may be made of, for example, squalene and squalane.

[0116] As examples of synthetic oils, mention may be made of alkane oils such as isododecane and isohexadecane, ester oils, ether oils, and artificial triglycerides.

[0117] The ester oils are preferably liquid esters of saturated or unsaturated, linear or branched C1- C26aliphatic monoacids or polyacids and of saturated or unsaturated, linear or branched C1- C26aliphatic monoalcohols or polyalcohols, the total number of carbon atoms of the esters being greater than or equal to 10.

[0118] Preferably, for the esters of monoalcohols, at least one from among the alcohol and the acid from which the esters of the present invention are derived is branched.

[0119] Among the monoesters of monoacids and of monoalcohols, mention may be made of ethyl palmitate, ethyl hexyl palmitate, isopropyl palmitate, dicaprylyl carbonate, alkyl myristates such as isopropyl myristate or ethyl myristate, isocetyl stearate, 2-ethylhexyl isononanoate, isononyl isononanoate, isodecyl neopentanoate, and isostearyl neopentanoate. Esters of C4-C22dicarboxylic or tricarboxylic acids and of C1-C22alcohols, and esters of monocarboxylic, dicarboxylic, or tricarboxylic acids and of non-sugar C4-C26dihydroxy, trihydroxy, tetrahydroxy, or pentahydroxy alcohols may also be used.

[0120] Mention may especially be made of: diethyl sebacate; isopropyl lauroyl sarcosinate; diisopropyl sebacate; bis(2-ethylhexyl) sebacate; diisopropyl adipate; di-n-propyl adipate; dioctyl adipate; bis(2-ethylhexyl) adipate; diisostearyl adipate; bis(2-ethylhexyl) maleate; triisopropyl citrate; triisocetyl citrate; triisostearyl citrate; glyceryl trilactate; glyceryl trioctanoate; trioctyldodecyl citrate; trioleyl citrate; neopentyl glycol diheptanoate; and di ethylene glycol diisononanoate.

[0121] As ester oils, one can use sugar esters and diesters of C6-C30and preferably C12-C22fatty acids. It is recalled that the term “sugar” means oxygen-bearing hydrocarbon-based compounds containing several alcohol functions, with or without aldehyde or ketone functions, and which comprise at least 4 carbon atoms. These sugars may be monosaccharides, oligosaccharides, or polysaccharides.

[0122] Examples of suitable sugars that may be mentioned include sucrose (or saccharose), glucose, galactose, ribose, fucose, maltose, fructose, mannose, arabinose, xylose, and lactose, and derivatives thereof, especially alkyl derivatives, such as methyl derivatives, for instance methylglucose.

[0123] The sugar esters of fatty acids may be chosen especially from the group consisting of the esters or mixtures of esters of sugars described previously and of linear or branched, saturated or unsaturated C6-C30and preferably C12-C22fatty acids. If they are unsaturated, these compounds may have one to three conjugated or non-conjugated carbon-carbon double bonds.

[0124] The esters according to this variant may also be selected from monoesters, diesters, triesters, tetraesters, and polyesters, and mixtures thereof.

[0125] These esters may be, for example, oleates, laurates, palmitates, myristates, behenates, cocoates, stearates, linoleates, linolenates, caprates, and arachidonates, or mixtures thereof such as, especially, oleopalmitate, oleostearate, and palmitostearate mixed esters, as well as pentaerythrityl tetraethyl hexanoate.

[0126] More particularly, use is made of monoesters and diesters and especially sucrose, glucose, or methylglucose monooleates or dioleates, stearates, behenates, oleopalmitates, linoleates, linolenates, and oleostearates.

[0127] An example that may be mentioned is the product sold under the name Glucate® DO by the company Amerchol, which is a methylglucose dioleate.

[0128] As examples of preferable ester oils, mention may be made of, for example, diisopropyl adipate, dioctyl adipate, 2-ethylhexyl hexanoate, ethyl laurate, cetyl octanoate, octyldodecyl octanoate, isodecyl neopentanoate, myristyl propionate, 2-ethylhexyl 2-ethylhexanoate, 2- ethylhexyl octanoate, 2-ethylhexyl caprylate / caprate, methyl palmitate, ethyl palmitate, isopropyl palmitate, dicaprylyl carbonate, isopropyl lauroyl sarcosinate, isononyl isononanoate, ethylhexyl palmitate, isohexyl laurate, hexyl laurate, isocetyl stearate, isopropyl isostearate, isopropyl myristate, isodecyl oleate, glyceryl tri(2-ethylhexanoate), pentaerythrithyl tetra(2-ethylhexanoate), 2-ethylhexyl succinate, diethyl sebacate, and mixtures thereof.

[0129] As examples of artificial triglycerides, mention may be made of, for example, capryl caprylyl glycerides, glyceryl trimyristate, glyceryl tripalmitate, glyceryl trilinolenate, glyceryl trilaurate, glyceryl tricaprate, glyceryl tricaprylate, glyceryl tri(caprateZcaprylate), and glyceryl tri(caprate / caprylate / linolenate) .

[0130] As examples of silicone oils, mention may be made of, for example, linear organopolysiloxanes such as dimethylpolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane, and the like; cyclic organopolysiloxanes such as cyclohexasiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, and the like; and mixtures thereof.

[0131] Preferably, the silicone oil is chosen from liquid polydialkylsiloxanes, especially liquid polydimethylsiloxanes (PDMS) and liquid polyorganosiloxanes comprising at least one aryl group.

[0132] These silicone oils may also be organomodified. The organomodified silicones that can be used in accordance with the present invention are silicone oils as defined above and comprise in their structure one or more organofunctional groups attached via a hydrocarbon-based group.

[0133] Organopolysiloxanes are defined in greater detail in Walter Noll’s Chemistry and Technology of Silicones (1968), Academic Press. They may be volatile or non-volatile.

[0134] When they are volatile, the silicones are more particularly chosen from those having a boiling point of between 60°C and 260°C, and even more particularly from:

[0135] (i) cyclic polydialkylsiloxanes comprising from 3 to 7 and preferably 4 to 5 silicon atoms. These are, for example, octamethylcyclotetrasiloxane sold in particular under the name Volatile Silicone® 7207 by Union Carbide or Silbione® 70045 V2 by Rhodia, decamethylcyclopentasiloxane sold under the name Volatile Silicone® 7158 by Union Carbide, Silbione® 70045 V5 by Rhodia, and dodecamethylcyclopentasiloxane sold under the name Silsoft 1217 by Momentive Performance Materials, and mixtures thereof. Mention may also be made of cyclocopolymers of the type such as dimethylsiloxane / methylalkylsiloxane, such as Silicone Volatile® FZ 3109 sold by the company Union Carbide, of the formula:

[0136] Mention may also be made of mixtures of cyclic polydialkylsiloxanes with organosilicon compounds, such as the mixture of octamethylcyclotetrasiloxane and tetratrimethylsilylpentaerythritol (50 / 50) and the mixture of octamethyl cyclotetrasiloxane and oxy-l,l ’-bis(2,2,2’,2’,3,3’- hexatrimethylsilyloxy)neopentane; and (ii) linear volatile polydialkylsiloxanes containing 2 to 9 silicon atoms and having a viscosity of less than or equal to 5 x 10-6m2 / s at 25°C. An example is decamethyltetrasiloxane sold in particular under the name SH 200 by the company Toray Silicone. Silicones belonging to this category are also described in the article published in Cosmetics and Toiletries, Vol. 91, Jan. 76, pp. 27-32, Todd & Byers, Volatile Silicone Fluids for Cosmetics. The viscosity of the silicones is measured at 25°C according to ASTM standard 445 Appendix C.

[0137] Non-volatile polydialkylsiloxanes may also be used. These non-volatile silicones are more particularly chosen from polydialkylsiloxanes, among which mention may be made mainly of poly dimethylsiloxanes containing trimethylsilyl end groups.

[0138] Among these polydialkylsiloxanes, mention may be made, in a non-limiting manner, of the following commercial products: the Silbione® oils of the 47 and 70 047 series or the Mirasil® oils sold by Rhodia, for instance the oil 70 047 V 500 000; the oils of the Mirasil® series sold by the company Rhodia; the oils of the 200 series from the company Dow Coming, such as DC200 with a viscosity of 60 000 mm2 / s; and the Viscasil® oils from General Electric and certain oils of the SF series (SF 96, SF 18) from General Electric.

[0139] Mention may also be made of polydimethylsiloxanes containing dimethylsilanol end groups known under the name dimethiconol (CTFA), such as the oils of the 48 series from the company Rhodia.

[0140] Among the silicones containing aryl groups, mention may be made of polydiarylsiloxanes, especially polydiphenylsiloxanes and polyalkylarylsiloxanes such as phenyl silicone oil.

[0141] The phenyl silicone oil may be chosen from the phenyl silicones of the following formula: in which R1to R10, independently of each other, are saturated or unsaturated, linear, cyclic or branched C1-C30hydrocarbon-based radicals, preferably C1-C12hydrocarbon-based radicals, and more preferably C1-C6hydrocarbon-based radicals, in particular methyl, ethyl, propyl, or butyl radicals, and m, n, p, and q, independently of each other, are integers of 0 to 900 inclusive, preferably 0 to 500 inclusive, and more preferably 0 to 100 inclusive, with the proviso that the sum n+m+q is other than 0. Examples that may be mentioned include the products sold under the following names: the Silbione® oils of the 70 641 series from Rhodia; the oils of the Rhodorsil® 70 633 and 763 series from Rhodia; the oil Dow Coming 556 Cosmetic Grade Fluid from Dow Coming; the silicones of the PK series from Bayer, such as the product PK20; and certain oils of the SF series from General Electric, such as SF 1023, SF 1154, SF 1250, and SF 1265.

[0142] As the phenyl silicone oil, phenyl trimethicone (R1to R10are methyl; p, q, and n = 0; m=l in the above formula) is preferable.

[0143] The organomodified liquid silicones may especially contain polyethyleneoxy and / or polypropyleneoxy groups. Mention may thus be made of the silicone KF-6017 proposed by Shin-Etsu, and the oils Silwet® L722 and L77 from the company Union Carbide.

[0144] The hydrocarbon oils may be chosen from: linear or branched, optionally cyclic, C6-C16lower alkanes. Examples that may be mentioned include hexane, undecane, dodecane, tridecane, and isoparaffins, for instance isohexadecane, isododecane, and isodecane; and linear or branched hydrocarbons containing more than 16 carbon atoms, such as liquid paraffins, liquid petroleum jelly, polydecenes and hydrogenated polyisobutenes such as Parleam®, and squalane.

[0145] As preferable examples of hydrocarbon oils, mention may be made of, for example, linear or branched hydrocarbons such as isohexadecane, isododecane, squalane, mineral oil (e.g., liquid paraffin), paraffin, vaseline or petrolatum, naphthalenes, and the like; hydrogenated polyisobutene, isoeicosan, and decene / butene copolymers; and mixtures thereof.

[0146] The term “fatty” in the fatty alcohol means the inclusion of a relatively large number of carbon atoms. Thus, alcohols which have 4 or more, preferably 6 or more, and more preferably 12 or more carbon atoms are encompassed within the scope of fatty alcohols. The fatty alcohol may be saturated or unsaturated. The fatty alcohol may be linear or branched.

[0147] The fatty alcohol may have the structure R-OH wherein R is chosen from saturated or unsaturated, linear or branched radicals containing from 4 to 40 carbon atoms, preferably from 6 to 30 carbon atoms, and more preferably from 12 to 20 carbon atoms. In at least one embodiment, R may be chosen from C12-C20alkyl and C12-C20alkenyl groups. R may or may not be substituted with at least one hydroxyl group.

[0148] As examples of the fatty alcohol, mention may be made of lauryl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, behenyl alcohol, undecylenyl alcohol, myristyl alcohol, octyldodecanol, hexyldecanol, oleyl alcohol, linoleyl alcohol, palmitoleyl alcohol, arachidonyl alcohol, erucyl alcohol, and mixtures thereof.

[0149] It is preferable that the fatty alcohol be a saturated fatty alcohol.

[0150] Thus, the fatty alcohol may be selected from linear or branched, saturated or unsaturated C6- C30alcohols, preferably linear or branched, saturated C6-C30alcohols, and more preferably linear or branched, saturated C12-C20alcohols. The term “saturated fatty alcohol” here means an alcohol having a long aliphatic saturated carbon chain. It is preferable that the saturated fatty alcohol be selected from any linear or branched, saturated C6-C30fatty alcohol. Among the linear or branched, saturated C6-C30fatty alcohols, linear or branched, saturated C12-C20fatty alcohols may preferably be used. Any linear or branched, saturated C16-C20fatty alcohol may be more preferably used.

[0151] Branched C16-C20fatty alcohols may be even more preferably used.

[0152] As examples of saturated fatty alcohols, mention may be made of lauryl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, behenyl alcohol, undecylenyl alcohol, myristyl alcohol, octyldodecanol, hexyldecanol, and mixtures thereof. In one embodiment, cetyl alcohol, stearyl alcohol, octyldodecanol, hexyldecanol, or a mixture thereof (e.g., cetearyl alcohol) as well as behenyl alcohol, can be used as a saturated fatty alcohol.

[0153] According to at least one embodiment, the fatty alcohol used in the composition according to the present invention is preferably chosen from cetyl alcohol, octyldodecanol, hexyldecanol, and mixtures thereof.

[0154] It is also preferable that the (e) oil be chosen from oils with a molecular weight below 600 g / mol.

[0155] Preferably, the (e) oil has a low molecular weight such as below 600 g / mol, chosen from among ester oils with a short hydrocarbon chain or chains (C1-C12) (e.g., isopropyl lauroyl sarcosinate, isopropyl myristate, isopropyl palmitate, isononyl isononanoate, and ethyl hexyl palmitate), silicone oils (e.g., volatile silicones such as cyclohexasiloxane), hydrocarbon oils (e.g., isododecane, isohexadecane, and squalane), branched and / or unsaturated fatty alcohols (C12-C30) type oils such as octyldodecanol and oleyl alcohol, and ether oils such as dicaprylyl ether.

[0156] It is preferable that the (e) oil be chosen from polar oils. It is more preferable that the (e) oil be selected from ester oils.

[0157] The amount of the (e) oil(s) in the composition according to the present invention may be 0.01% by weight or more, preferably 0.05% by weight or more, and more preferably 0.1% by weight or more, relative to the total weight of the composition.

[0158] The amount of the (e) oil(s) in the composition according to the present invention may be 10% by weight or less, preferably 5% by weight or less, and more preferably 1% by weight or less, relative to the total weight of the composition.

[0159] The amount of the (e) oil(s) in the composition according to the present invention may be from 0.01% to 10% by weight, preferably from 0.05% to 5% by weight, and more preferably from 0.1% to 1% by weight, relative to the total weight of the composition.

[0160] (Anionic Surfactant)

[0161] The composition according to the present invention may comprise (f) at least one anionic surfactant. A single type of (f) anionic surfactant may be used, but two or more different types of (f) anionic surfactants may be used in combination. It is preferable that the (f) anionic surfactant be selected from amino acid surfactants.

[0162] The amino acid surfactant is an anionic surfactant based on an amino acid or derivatives thereof. Typically, the amino acid surfactant is an anionic surfactant comprising at least one amino moiety and at least one carboxylic acid moiety which is in the form of a carboxylate. The amino acid surfactant may have two or more amino moieties and / or two or more carboxylic acid moieties which are in the form of carboxylates.

[0163] The amino acid surfactant may preferably be selected from amino acid derivatives. The amino acid derivative may more preferably be selected from salts of amino acids and N- acylated amino acids, for example alkali metal salts and alkali earth metal salts of amino acids and N-acylated amino acids, such as sodium salts, potassium salts, magnesium salts, and calcium salts of amino acids and N-acylated amino acids.

[0164] The acyl group which forms the N-acyl moiety of the amino acid derivatives may be a C1-C30acyl group, preferably a C6-C28acyl group, and more preferably a C12-C24acyl group.

[0165] The amino acid surfactant may even more preferably be selected from the group consisting of glutamates, N-acylated glutamates, aspartates, N-acylated aspartates, and salts thereof.

[0166] Examples of the amino acid surfactant include, but are not limited to: sarcosinates, such as N-acyl sarcosinates (salts), e.g., sodium lauroyl sarcosinate, sold under the name Nikkol Sarcosinate™ LN by Nikko Chemicals or sold under the name Pureact™ LSR by Innospec Performance Chemicals Europe Limited; sodium myristoyl sarcosinate, sold under the name Nikkol Sarcosinate™ MN by Nikko Chemicals; sodium palmitoyl sarcosinate, sold under the name Nikkol Sarcosinate™ PN by Nikko Chemicals; and sodium cocoyl sarcosinate, sold under the name Nikkol Sarcosinate™ CN-30 by Nikko Chemicals; alaninates, such as N-acyl alaninates (salts), e.g., sodium N-lauroyl-N- methylamidopropionate, sold under the name Sodium Nikkol AlaninateTM LN 30 by Nikko Chemicals or sold under the name Alanone® ALE by Kawaken; sodium cocoyl alaninates, sold under the name Amilite® ACS- 12 by Ajinomoto; and triethanolamine N-lauroyl-N-methylalanine, sold under the name Alanone® ALTA by Kawaken; glutamates, such as N-acyl glutamates (salts), e.g., sodium stearoyl glutamate, sold under the name of Eumulgin® SR by BASF Japan; sodium lauroyl glutamate, sold under the name of Plantapon® Amino SLG-P by BASF Japan; triethanolamine monococoyl glutamate, sold under the name Amisoft® CT- 12 by Ajinomoto; triethanolamine lauroyl glutamate, sold under the name Amisoft® LT- 12 by Ajinomoto; and disodium stearoyl glutamate, sold under the name Amisoft® HS-21P by Ajinomoto; aspartates, such as N-acyl aspartates (salts), e.g., disodium N-lauroyl aspartate, sold under the name of AminoFoamer® FLMS-P1 by Asahi Kasei; and a mixture of triethanolamine N-lauroyl aspartate and triethanolamine N-myristoyl aspartate, sold under the name AminoFoamer® FCMT-L by Asahi Kasei; and glycinates, such as N-acyl glycinates (salts), e.g., sodium N-cocoyl glycinate, sold under the name Amilite® GCS-12K; and potassium N-cocoyl glycinate, sold under the name Amilite® GCK-12K by Ajinomoto.

[0167] It is preferable that the (I) anionic surfactant be selected from the group consisting of sarcosinates, N-acyl sarcosinate, and salts thereof.

[0168] It is more preferable that the (f) anionic surfactant be sodium N-acylated sarcosinate, in particular, sodium cocoyl sarcosinate.

[0169] The amount of the (f) anionic surfactant in the composition according to the present invention may be 0.01% by weight or more, preferably 0.05% by weight or more, and more preferably 0.1% by weight or more, relative to the total weight of the composition.

[0170] The amount of the (f) anionic surfactant(s) in the composition according to the present invention may be 10% by weight or less, preferably 5% by weight or less, and more preferably 1 % by weight or less, relative to the total weight of the composition.

[0171] The amount of the (f) anionic surfactant(s) in the composition according to the present invention may range from 0.01% to 10% by weight, preferably from 0.05% to 5% by weight, more preferably from 0.1% to 1% by weight, relative to the total weight of the composition.

[0172] (Optional Ingredient)

[0173] The composition according to the present invention may comprise, in addition to the aforementioned ingredients, one or more optional ingredients typically employed in cosmetics, specifically, one or more optional ingredients selected from cationic and amphoteric surfactants; nonionic surfactants other than the (c) polyglyceryl fatty acid monoesters; hydrophilic or lipophilic thickeners, derived from, for example, synthetic polymers; volatile or non-volatile organic solvents; cationic, anionic and amphoteric polymers; silicones and silicone derivatives other than the (e) oil; natural extracts derived from animals or vegetables other than the (a) Taraxacum Officinale extract or the (e) oil; waxes; and the like, within a range which does not impair the effects of the present invention.

[0174] The composition according to the present invention may comprise the above optional ingredient(s) in an amount of from 0.01% to 30% by weight, preferably from 0.05% to 20% by weight, and more preferably from 0.1% to 10% by weight, relative to the total weight of the composition.

[0175] [Preparation]

[0176] The composition according to the present invention can be prepared by mixing the essential ingredients as explained above, and optional ingredient(s), if necessary, as explained above.

[0177] The method and means to mix the above essential and optional ingredients are not limited. Any conventional method and means can be used to mix the above essential and optional ingredients to prepare the composition according to the present invention.

[0178] The composition according to the present invention can be prepared by simple or easy mixing with a conventional mixing means such as a stirrer and a homogenizer. Also, heating may not be necessary. Therefore, the process for preparing the composition according to the present invention may be environmentally friendly.

[0179] [Cosmetic Application] The composition according to the present invention may be intended to be used as a cosmetic composition. Thus, the cosmetic composition according to the present invention may be intended for application onto a keratin substance. Keratin substance here means a material containing keratin as a main constituent element, and examples thereof include the skin, scalp, nails, lips, hair, and the like. Thus, it is preferable that the cosmetic composition according to the present invention be used for a cosmetic process for a keratin substance, in particular skin.

[0180] Thus, the cosmetic composition according to the present invention may be a skin cosmetic composition, preferably a skin care composition or a skin makeup composition, and more preferably a skin care composition.

[0181] [Form]

[0182] The composition according to the present invention may be present in any form.

[0183] If the composition according to the present invention includes (d) water and (e) oil, the (d) water can form an aqueous phase and the (e) oil can form fatty phases, and the fatty phases can be dispersed in the aqueous phase. Thus, the aqueous phase can function as a continuous phase, and the fatty phase can function as a dispersed phase. In other words, the composition according to the present invention may be in the form of an O / W dispersion such as an O / W emulsion. If the composition according to the present invention is of the O / W type, it can provide a fresh sensation due to the (d) water which forms the outer phase thereof.

[0184] [Cosmetic Process and Use]

[0185] The present invention also relates to a cosmetic process for a keratin substance such as skin, comprising applying the composition according to the present invention to the keratin substance.

[0186] The cosmetic process here means a non-therapeutic cosmetic method for caring for a keratin substance such as skin.

[0187] The cosmetic process according to the present invention can provide a keratin substance such as skin with an increased amount of oligosaccharide, such as oligofructan, included in a Taraxacum Officinale extract, preferably a Taraxacum Officinale rhizome or root extract, in the composition according to the present invention.

[0188] Thus, the cosmetic process according to the present invention can provide improved cosmetic effects, on a keratin substance such as skin, based on an increased amount of the oligosaccharide, such as oligofructan, penetrated into the skin.

[0189] A Taraxacum Officinale extract, preferably a Taraxacum Officinale rhizome or root extract, is known to improve radiance, complexion and grain of the skin. Therefore, the cosmetic process according to the present invention can provide improved radiance, complexion and grain of the skin. In addition, the cosmetic process according to the present invention can effectively brighten the skin.

[0190] Also, a Taraxacum Officinale extract, preferably a Taraxacum Officinale rhizome or root extract, is known to function as an anti-pollution agent or a free radical scavenger (anti- oxidant). Therefore, the cosmetic process according to the present invention can effectively protect a keratin substance such as skin from environmental pollution or oxidation.

[0191] The present invention may also relate to a use of a combination of

[0192] (b) at least one glycol; and

[0193] (c) at least one polyglyceryl fatty acid monoester, in a composition comprising

[0194] (a) at least one Taraxacum Officinale extract, preferably a Taraxacum Officinale rhizome or root extract; wherein the amount of the (c) polyglyceryl fatty acid monoester is more than 0.2% by weight relative to the total weight of the composition in order to enhance the penetration of an oligosaccharide in the (a) Taraxacum Officinale extract, preferably a Taraxacum Officinale rhizome or root extract, into a keratin substance such as skin.

[0195] The present invention may also relate to a use of a combination of

[0196] (b) at least one glycol; and

[0197] (c) at least one polyglyceryl fatty acid monoester, in a composition comprising

[0198] (a) at least one Taraxacum Officinale extract, preferably a Taraxacum Officinale rhizome or root extract; wherein the amount of the (c) polyglyceryl fatty acid monoester is more than 0.2% by weight relative to the total weight of the composition in order to enhance the cosmetic effects on skin, such as skin brightening effects, provided by the (a) Taraxacum Officinale extract, preferably a Taraxacum Officinale rhizome or root extract.

[0199] The above composition may comprise any one of (d) water, (e) at least one oil, and (f) at least one anionic surfactant.

[0200] The above explanations regarding the (a) Taraxacum Officinale extract, the (b) polyglyceryl fatty acid monoester, and the (c) glycol, as well as optional ingredients such as the (d) water, the (e) oil and the (f) anionic surfactant, can apply to those in the above use.

[0201] EXAMPLES

[0202] The present invention will be described in a more detailed manner by way of examples. However, they should not be construed as limiting the scope of the present invention.

[0203] Examples 1-6 and Comparative Examples 1-9

[0204] [Preparation]

[0205] Each of the compositions according to Examples 1-6 and Comparative Examples 1-9 was prepared by mixing the ingredients shown in Tables 1-2. The numerical values for the amounts of the ingredients in Tables 1-2 are all based on “% by weight” as raw materials. Table 1

[0206] Table 2

[0207] [Evaluation]

[0208] (Absorbance)

[0209] The penetration test experiments were performed in a Franz diffusion cell (Hanson) with a Strat-M membrane (Millipore, diameter of 15 mm). This equipment was composed of a donor part and a receptor part with the Strat-M membrane between the donor and receptor parts. The receptor part with a predetermined volume was filled with a receiving solution (0.25 wt% Tween 80 / deionized water) maintained at a temperature of 32°C, which was continuously stirred with a small magnetic bar. Each of the compositions according to Examples 1-6 and Comparative Examples 1-9 was spread with a spatula on the membrane of the donor part with an amount of 30 mg / cm2. After 5 hours, 200 pl of the receiving solution was withdrawn from the receptor part, while providing the same amount of a new receiving solution to the receptor part to maintain the same penetration conditions.

[0210] The amount of oligosaccharides in the receiving solution was determined with a phenol sulfuric acid method: 150 pl of the withdrawn receiving solution is mixed with 750 pl of sulfuric acid for 15 minutes at 90°C then with 150 pl of a 5 wt% phenol solution for 5 minutes at room temperature (25°C). Oligosaccharides were converted into a brown-colored substance composed of a UV-absorbing chromophore. The UV absorption at 400 nm of the reacted receiving solution was measured with a spectrophotometer. The UV absorption was an indication of the amount of the oligosaccharides in the receiving solution.

[0211] The results are shown in the row labeled “Absorbance (400 nm)” in Tables 1 and 2.

[0212] (Summary)

[0213] The comparison of Examples 1-6 and Comparative Example 7 demonstrates that the use of glycols significantly enhanced the skin penetration of oligosaccharides as compared to no use of the glycols.

[0214] The comparison of Examples 1-3 and Examples 4-6, respectively, demonstrates that the use of pentylene glycol can better enhance the skin penetration of oligosaccharides as compared to the use of propylene glycol.

[0215] The comparison of Comparative Examples 1-6 and Comparative Example 7 demonstrates that the use of polyvalent (trivalent) alcohol or monovalent alcohol did not enhance the skin penetration of oligosaccharides as compared to no use of the polyvalent alcohol or monovalent alcohol.

[0216] The comparison of Comparative Example 8 and Comparative Example 7 demonstrates that the co-use of 0.2% by weight of polyglyceryl fatty acid monoesters is insufficient to significantly enhance the skin penetration of oligosaccharides, even though glycol is used.

[0217] The comparison of Comparative Example 9 and Comparative Example 7 demonstrates that no use of polyglyceryl fatty acid monoesters did not enhance the skin penetration of oligosaccharides, even though glycol is used.

Claims

CLAIMS1. A composition, preferably a cosmetic composition, and more preferably a skin cosmetic composition, comprising:(a) at least one Taraxacum Officinale extract;(b) at least one glycol; and(c) at least one polyglyceryl fatty acid monoester, wherein the amount of the (c) polyglyceryl fatty acid monoester is more than 0.2% by weight relative to the total weight of the composition.

2. The composition according to Claim 1 , wherein the amount of the (a) Taraxacum Officinale extract(s) in the composition is from 0.01% to 5% by weight, preferably from 0.05% to 3% by weight, and more preferably from 0.1% to 1% by weight, relative to the total weight of the composition.

3. The composition according to Claim 1 or 2, wherein the (b) glycol is selected from the group consisting of propylene glycol, pentylene glycol, and mixtures thereof.

4. The composition according to any one of Claims 1 to 3, wherein the amount of the(b) glycol(s) in the composition is from 0.1% to 20% by weight, preferably from 0.5% to 15% by weight, and more preferably from 1% to 10% by weight, relative to the total weight of the composition.

5. The composition according to any one of Claims 1 to 4, wherein the (c) polyglyceryl fatty acid monoester comprises 2 to 4 glycerol units.

6. The composition according to any one of Claims 1 to 5, wherein the amount of the(c) polyglyceryl fatty acid monoester(s) in the composition is from 0.3% to 10% by weight, preferably from 0.5% to 5% by weight, and more preferably from 1% to 3% by weight, relative to the total weight of the composition.

7. The composition according to any one of Claims 1 to 6, wherein the composition further comprises (d) water, preferably in an amount of from 50% to 95% by weight, more preferably from 60% to 93% by weight, and even more preferably from 70% to 90% by weight, relative to the total weight of the composition.

8. The composition according to any one of Claims 1 to 7, wherein the composition further comprises (e) at least one oil.

9. The composition according to Claim 8, wherein the (e) oil is selected from ester oils.

10. The composition according to Claim 8 or 9, wherein the amount of the (e) oil(s) in the composition is from 0.01% to 10% by weight, preferably from 0.05% to 5% by weight, and more preferably from 0.1% to 1% by weight, relative to the total weight of the composition.

11. The composition according to any one of Claims 1 to 10, wherein the composition further comprises (f) at least one anionic surfactant.

12. The composition according to Claim 11, wherein the (f) anionic surfactant is selected from amino acid surfactants.

13. The composition according to Claim 11 or 12, wherein the amount of the (f) anionic surfactant(s) in the composition is from 0.01% to 10% by weight, preferably from0.05% to 5% by weight, and more preferably from 0.1% to 1% by weight, relative to the total weight of the composition.

14. A cosmetic process for a keratin substance such as skin, comprising applying the composition according to any one of Claims 1 to 13 to the keratin substance.

15. A use of a combination of(b) at least one glycol; and(c) at least one polyglyceryl fatty acid monoester, in a composition comprising(a) at least one Taraxacum Officinale extract; wherein the amount of the (c) polyglyceryl fatty acid monoester is more than 0.2% by weight relative to the total weight of the composition in order to enhance the penetration of an oligosaccharide in the (a) TaraxacumOfficinale extract into a keratin substance such as skin.

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