Cosmetic composition comprising Ampelopsis Grossedentata Leaf Extract and 1, 2-hexanediol
A cosmetic composition with Ampelopsis Grossedentata Leaf Extract and 1, 2-hexanediol stabilizes THEA, addressing color change and degradation issues, ensuring stability at elevated temperatures.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- BEIERSDORF AG
- Filing Date
- 2024-12-13
- Publication Date
- 2026-06-18
AI Technical Summary
Cosmetic compositions containing Ampelopsis Grossedentata Leaf Extract (THEA) undergo significant color change and degradation upon storage, especially at elevated temperatures, which existing antioxidants fail to effectively mitigate.
A cosmetic composition comprising Ampelopsis Grossedentata Leaf Extract and 1, 2-hexanediol, with a weight ratio between 1:10 to 1:200, effectively reduces discoloration and degradation by stabilizing THEA.
The composition maintains the optical appearance and stability of THEA, preventing brownish discoloration even at high storage temperatures.
Smart Images

Figure PCTCN2024139085-FTAPPB-I100001 
Figure PCTCN2024139085-FTAPPB-I100002 
Figure PCTCN2024139085-FTAPPB-I100003
Abstract
Description
Cosmetic composition comprising Ampelopsis Grossedentata Leaf Extract and 1, 2-hexanediolTechnical field
[0001] The present invention relates to a cosmetic composition comprising Ampelopsis Grossedentata Leaf Extract (THEA) .
[0002] Technical background
[0003] A beautiful and attractive appearance is a desire for many people. Therefore, in order to take care on the skin, consumers often prefer to apply cosmetic products containing active ingredients delivering a skin benefit. Various literatures have been disclosed describing cosmetic active ingredients.
[0004] THEA has been described in Int. J. Mol. Sci. 2024, 25 (1) , 416; https: / / doi. org / 10.3390 / ijms25010416, as an Anti-Inflammatory and Antioxidant Agent in Human Immune Cells.
[0005] US 9827188 B2 discloses THEA in cosmetic compositions for improving the condition and appearance of the skin, such as by improving skin barrier protection, improving hydration and moisturization of the skin and reducing inflammation of the skin, and providing anti-aging properties to the skin. The document discloses a list of suitable antioxidants also comprising sodium metabisulfite, ascorbic acid and tocopherol.
[0006] Unfortunately, the cosmetic use of THEA is still very limited as cosmetic compositions comprising THEA are found to changed color degrades upon storage. This effect becomes more relevant the higher the storage temperature (e.g. 40 to 50℃) of the formulation is. In terms of the present invention color change is understood as changing the optical appearance of the formulation from yellow or white towards brown.
[0007] The person skilled in art is aware of a long list of antioxidants, which can be contained in cosmetic compositions. This includes Benzotriazolyl Dodecyl p-Cresol, Pentaerythrityl Tetra-di-t-butyl Hydroxyhydrocinnamate, Octadecyl Di-t-butyl-4-hydroxyhydrocinnamate, Sodium Benzotriazolyl Butylphenol Sulfonate, Tris (Tetramethylhydroxypiperidinol) Citrate, Tocopherol, Ascorbic Acid, Ferulic Acid, Oxothiazolidinecarboxylic Acid, Glucosyl Hesperidin, Raspberry Ketone Glucoside, Lactobionic Acid, Glucosylrutin and Hydroxymethoxyphenyl Decanone. However, none of these well-known ingredients allowed für a significant reduction of the brownish discoloration of the formulas.
[0008] It was now surprisingly found by the applicant that the problem can be addressed by the present invention.
[0009] The invention is a cosmetic composition comprising
[0010] a) Ampelopsis Grossedentata Leaf Extract, and
[0011] b) 1, 2-hexanediol,
[0012] whereby the ratio by weight between Ampelopsis Grossedentata Leaf Extract and 1, 2-hexanediol is in the range from 1: 10 to 1: 200.
[0013] A further object of the invention is the use of 1, 2-hexanediol to avoid or reduce the discoloration of cosmetic compositions comprising Ampelopsis Grossedentata Leaf Extract. A further object of the invention is the use of 1, 2-hexanediol to avoid the degradation of Ampelopsis Grossedentata Leaf Extract in a cosmetic composition.
[0014] All the weight percentages (%by weight) given below relate, unless otherwise stated, to the total weight of the cosmetic composition. If ratios of certain components are disclosed in the following description, these ratios refer, unless otherwise stated, to weight ratios of the components.
[0015] Unless otherwise stated, all tests and measurements were performed under “normal conditions” . The term "normal conditions" refers to 20℃, 1013 hPa and a relative humidity of 50%.
[0016] In the following description the terms ” according to the invention” , “preferred according to the invention” and so on are always directed to the use according to the invention, to the composition and to the method according to the invention.
[0017] For the purposes of the present disclosure, the term "free from" means that the proportion of the respective substance is less than 0.05%by weight. This ensures that entrainments or impurities with these substances are not included as "free from" according to the invention.
[0018] The term “skin” refers solely to the human skin. The term “hair” refers solely to the human head hair.
[0019] If viscosity values are given in this disclosure, then all values relate to a measurement at 25 ℃. in a 150 ml wide-mouth bottle (VWR No.: 807-001) using Rheomat R 123 from the company proRheo. The Rheomat R 123 from proRheo GmbH is a rotational viscometer, i. H. a measuring body rotates in the substance to be measured. The force required to rotate the measuring body in the sample at a specified speed is measured. The viscosity is calculated from this torque, the speed of the measuring body and the geometric dimensions of the measuring system used. Measuring body No. 1 (Article No. 200 0191) , suitable for a viscosity range of up to 10,000 [mPa s] , speed range 62.5 min-1, is used as the measuring body.
[0020] Emulsifiers are understood to be all substances which are listed in the International Cosmetic Ingredient Dictionary and Handbook, Thirteenth Edition 2010, (ISBN 1-882621-47-6) under the name "emulsifying agent" . Surfactants are understood to be all substances which are listed in the International Cosmetic Ingredient Dictionary and Handbook, Thirteenth Edition 2010, (ISBN 1-882621-47-6) under the name "surfactant" .
[0021] According to the invention it is preferred THEA is contained in a total quantity ranging from 0.01 to 2.0%by weight, more preferably from 0.05 to 1.5%by weight and most preferably from 0.1 to 1.2%by weight, calculated to the total weight of the composition.
[0022] According to the invention it is preferred 1, 2-hexanediol is contained in a total quantity ranging from 0.1 to 99.5%by weight, more preferably from 0.2 to 99.2%by weight and most preferably from 0.5 to 10.0%by weight, calculated to the total weight of the composition.
[0023] It is preferred if the ratio by weight between Ampelopsis Grossedentata Leaf Extract and 1, 2-hexanediol is in the range from 1: 20 to 1: 150, more preferable 1: 25 to 1: 100 and most preferably 1: 40 to 1: 99.
[0024] It was surprisingly noticed that the discoloration and / or degradation can already be reduced using 1, 2-hexanediol as solvent. Other antioxidants listed above, were not even showing an effect at higher concentrations. Further, other polyols such as propanediol, pentylene glycol, butylene glycol and propylene glycol showed more discoloration and / or degradation, in particular if stored at 50℃ for 1 month.
[0025] It is also preferred to provide the composition comprising 1, 2-hexanediol and THEA in a first step and adding this mixture to a cosmetic composition.
[0026] Further it is preferred if the composition according to the invention is an emulsion. It is preferred if it is an oil in water emulsion.
[0027] The emulsion comprises by definition an oil phase. It is preferred if the total quantity of the oil phase is in the range from 12 to 35%by weight, more preferably from 13 to 30%by weight and most preferably from 14 to 25%by weight, calculated to the total weight of the composition. By definition emulsifier and surfactants are not part of the oil phase. Nevertheless, fatty alcohols count as part of the oil phase.
[0028] Preferred oil which can be contained in the composition according to the invention are selected from the esters of the linear or branched saturated or unsaturated fatty alcohols having 2-30 carbon atoms with linear or branched saturated or unsaturated fatty acids having 2-30 carbon atoms, which may be hydroxylated.
[0029] Preferred esters of the linear or branched saturated or unsaturated fatty alcohols having 2-30 carbon atoms with linear or branched saturated or unsaturated fatty acids having 2-30 carbon atoms, which may be hydroxylated, are selected from the group consisting of hexyldecyl stearate, hexyldecyl laurate, isodecyl neopentanoate, isononyl isononanoate, 2-ethylhexyl palmitate, 2-ethylhexyl stearate, isopropyl myristate, isopropyl palmitate, isopropyl stearate, isopropyl isostearate, isopropyl oleate, isooctyl stearate, isononyl stearate, isocetyl stearate, isononyl isononanoate, isotridecyl isononanoate, cetearyl isononanoate, 2-ethylhexyl laurate, 2-ethylhexyl isostearate, 2-ethylhexyl cocoate, 2-octyldodecyl palmitate, butyloctanoic acid-2-butyl octanoate, diisotridecyl acetate, ethyl stearate, methyl stearate, , propyl stearate, butyl stearate, ethyl myristate, ethyl palmitate, butyl palmitate, propyl stearate, propyl palmitate, stearyl benzoate, benzyl palmitate, benzyl stearate, palmityl benzoate, C12-15 alkyl benzoate, palmityl acetate, n-butyl stearate, n-hexyl laurate, n-decyl oleate, oleyl oleate, oleyl erucate, erucyl oleate, erucyl erucate, ethylene glycol dioleate and ethylene glycol dipalmitate. Among those isopropyl myristate and / or isopropyl palmitate are particular preferred.
[0030] Further it is preferred, if the composition comprises at least one triglyceride. Preferred triglycerides are selected from Cocos Nucifera Oil (Triglyceride (Fractionated Coconut Oil) ) , Astrocaryum Murumuru Seed Butter (Astrocaryum sp Triglycerides) , C10-18 Triglycerides, C10-40 Isoalkyl Acid Triglyceride, C12-18 Acid Triglyceride, C18-36 Acid Triglyceride, C8-12 Acid Triglyceride, Caprylic / capric / myristic / stearic Triglyceride, Caprylic / Capric Triglyceride, Capric / Lauric / Myristic / Oleic Triglyceride, Caprylic / Capric / Linoleic Triglyceride, Caprylic / Capric / Stearic Triglyceride, Castoryl Maleate (Ceraphyl RMT (Ricinoleyl Monomaleate Triglyceride) ) , Hydrogenated C12-18 Triglycerides, Lauric / palmitic / oleic Triglyceride, Mustelic / palmitic Triglyceride, Oleic / linoleic Triglyceride, Oleic / Palmitic / Lauric / Myristic / Linoleic Triglyceride, Ricinoleic / caproic / caprylic / capric Triglyceride, Caprylic / Capric / Succinic Triglyceride and / or Jojoba Oil / Caprylic / Capric Triglyceride Esters.
[0031] Further preferred triglycerides, which can be contained according to the invention, are natural oils. Preferred natural oils, which can preferably be contained are coconut oil, (sweet) almond oil, walnut oil, peach kernel oil, apricot kernel oil, avocado oil, tea tree oil, soybean oil, glycine soja oil, sesame oil, sunflower oil, tsubaki oil, evening primrose oil, rice bran oil, palm kernel oil, mango kernel oil, cuckoo flower oil, thistle oil, macadamia nut oil, grape seed oil, amaranth seed oil, argan oil, bamboo oil, olive oil, wheat germ oil, pumpkin seed oil, mallow oil, hazelnut oil, safflower oil, canola oil, sasanqua oil, jojoba oil, rambutan oil, cocoa butter, and shea butter.
[0032] It is preferred according to the invention if the composition comprises dicaprylyl carbonate. For the case that dicaprylyl carbonate is contained it is preferred if the total quantity of dicaprylyl carbonate is in the range from 0.1 to 10%by weight, more preferably from 2 to 8%by weight and most preferably 3 to 6%by weight, calculated to the total weight of the composition.
[0033] It is preferred according to the invention if the composition comprises caprylic / capric triglyceride. For the case that caprylic / capric triglyceride is contained it is preferred if the total quantity of caprylic / capric triglyceride is in the range from 0.1 to 10%by weight, more preferably from 2 to 8%by weight and most preferably 3 to 6%by weight, calculated to the total weight of the composition.
[0034] It is preferred according to the invention if the composition comprises Butyrospermum Parkii (Shea) Butter. For the case that Butyrospermum Parkii (Shea) Butteris contained it is preferred if the total quantity of Butyrospermum Parkii (Shea) Butteris in the range from 0.1 to 10%by weight, more preferably from 2 to 8%by weight and most preferably 3 to 6%by weight, calculated to the total weight of the composition.
[0035] Further it is preferred if the composition comprises one or more alkanes having 10 to 26 carbon atoms. It is particular preferred if the one or more alkanes having 10 to 26 carbon atoms are selected from the group consisting of C10-13 Alkane, C12-17 Alkane, C13-14 Alkane, C13-15 Alkane, C14-17 Alkane, C14-19 Alkane, C14-20 Alkane, C14-22 Alkane, C15-19 Alkane, C15-23 Alkane, C16-23 Alkane and C18-21 Alkane. Most preferred is C15-19 Alkane.
[0036] It is preferred according to the invention if the total quantity of the alkanes having 10 to 26 carbon atoms is in the range from 0.1 to 13%by weight, more preferably from 2.0 to 11.0%by weight and most preferably from 3.0 to 10%by weight, calculated to the total weight of the composition.
[0037] Further it is preferred if the composition comprises one or more alkanes having 28 or more carbon atoms. Among those alkanes having 28 or more carbon atoms squalene is preferably contained in the composition according to the invention. It is preferred according to the invention if the total quantity of the alkanes having 28 or more carbon atoms is in the range from 0.1 to 5%by weight, more preferably from 1.0 to 4.0%by weight and most preferably from 1.5 to 3.0%by weight, calculated to the total weight of the composition.
[0038] Further compounds which can be contained in the oil phase are for example chosen from further branched saturated or unsaturated fatty alcohols having 6-30 carbon atoms. These alcohols are also often referred to as Guerbet alcohols since they are obtainable according to the Guerbet reaction. Preferred alcohol oils are hexyldecanol ( G 16, T 16) , octyldodecanol ( G, 20) and 2-ethylhexyl alcohol.
[0039] Further compounds preferably contained are chosen from the addition products of from 1 to 5 propylene oxide units onto mono-or polyhydric C8-22-alkanols, such as octanol, decanol, decanediol, lauryl alcohol, myristyl alcohol and stearyl alcohol, e.g., PPG-2 myristyl ether and PPG-3 myristyl ether ( APM) .
[0040] Further compounds, which can be contained in the composition according to the invention are chosen from the addition products of at least 6 ethylene oxide and / or propylene oxide units onto mono-or polyhydric C3-2 2-alkanols, such as butanol, butanediol, myristyl alcohol and stearyl alcohol, e.g., PPG-14 butyl ether (Ucon AP) , PPG-9 butyl ether ( B25) , PPG-10 butanediol ( 57) and PPG-15 stearyl ether ( E) .
[0041] Further compounds preferably contained are preferably chosen from the C8-C22-fatty alcohol esters of monobasic or polybasic C2-C7-hydroxycarboxylic acids, in particular, the esters of glycolic acid, lactic acid, malic acid, tartaric acid, citric acid and salicylic acid. Such esters based on linear C14 / 15-alkanols, e.g., C12-C15-alkyl lactate, and on C12 / 13-alkanols branched in the 2 position are available under the trade name from Nordmann, Rassmann GmbH &Co., Hamburg, in particular the commercial products ESI, EMI and ETI.
[0042] The composition according to the invention may further comprise one or more fatty alcohols having 14 to 20 carbon atoms. Among those fatty alcohols cetyl alcohol, stearyl alcohol and the corresponding mixture cetearyl alcohol are most preferred. For the case that one or more fatty alcohols having 14 to 20 carbon atoms are contained in the composition it is preferred if the total quantity by weight of the fatty alcohols having 14 to 20 carbon atoms is in the range from 0.1 to 6%by weight, more preferably 0.5 to 5.0 %by weight and most preferably 1.5 to 4.0 %by weight, calculated to the total weight of the composition.
[0043] According to the invention the composition comprises 0.05 to 1%by weight of at least one polymer selected from the group of xanthan gum, gellan gum, sclerotium gum and dehydroxanthan gum, calculated to the total weight of the composition.
[0044] It is particular preferred if at least xanthan gum is contained. Further it is particular preferred if at least gellan gum is contained. Further it is particular preferred if at least sclerotium gum is contained. Further it is particular preferred if at least dehydroxanthan gum is contained.
[0045] It is advantageous if the composition comprises 0.01 to 0.8%by weight, more preferably 0.05 to 0.3%by weight and most preferably 0.1 to 0.2%by weight of at least one polymer selected from the group of xanthan gum, gellan gum, sclerotium gum and dehydroxanthan gum, calculated to the total weight of the composition.
[0046] For the case that xanthan gum is contained, it is preferred if the total quantity of xanthan gum is in the range from 0.01 to 0.8%by weight, more preferably 0.05 to 0.5%by weight and most preferably 0.1 to 0.4%by weight, calculated to the total weight of the composition.
[0047] Further it is preferred if the composition comprises phenoxyethanol and / or ethylhexylglycerin.
[0048] For the case that phenoxyethanol is contained it is preferred if the total quantity of phenoxyethanol is in the range from 0.1 to 0.8%by weight, calculated to the total weight of the composition.
[0049] For the case that ethylhexylglycerin is contained it is preferred if the total quantity of ethylhexylglycerin is in the range from 0.1 to 1.2%by weight, calculated to the total weight of the composition.
[0050] Further it is preferred if the composition comprises hydoxyacetophenone. For the case that hydoxyacetophenone is contained it is preferred if the total quantity of hydoxyacetophenone is in the range from 0.1 to 0.8%by weight, calculated to the total weight of the composition.
[0051] Further it is preferred according to the invention if at least one nonionic emulsifier is contained. Preferred nonionic emulsifiers are selected from oleth-20, glyceryl stearate, glyceryl stearate SE, glyceryl stearate citrate and PEG-40 hydrogenated castor oil. For the case that at least one nonionic emulsifier is contained, it is preferred if the total quantity of the nonionic emulsifier is in the range from 0.2 to 4.0%by weight, more preferably from 0.5 to 3.0%by weight and most preferably 1.3 to 2.8%by weight, calculated to the total weight of the emulsion.
[0052] Further it is preferred if the composition comprises at least one anionic emulsifier. Among the well-known anionic emulsifier (See the International Cosmetic Ingredient Dictionary and Handbook) the emulsifier sodium stearoyl glutamate is preferably contained in the composition according to the invention. For the case that at least one anionic emulsifier is contained, it is preferred if the total quantity of the anionic emulsifier is in the range from 0.1 to 4.0%by weight, more preferably from 0.2 to 3.0%by weight and most preferably 0.3 to 2.8%by weight, calculated to the total weight of the composition. For the case that sodium stearoyl glutamate is contained, it is preferred if the total quantity of sodium stearoyl glutamate is in the range from 0.1 to 4.0%by weight, more preferably from 0.2 to 3.0%by weight and most preferably 0.3 to 2.8%by weight, calculated to the total weight of the composition.
[0053] For the preferred case that glyceryl stearate citrate is contained, it is preferred if the total quantity of glyceryl stearate citrate is in the range from 0.1 to 4.0%by weight, more preferably from 0.2 to 3.0%by weight and most preferably 0.3 to 2.8%by weight, calculated to the total weight of the composition.
[0054] It is further preferred according to the invention if the composition comprises citric acid and / or sodium citrate.
[0055] Further it is preferred according to the invention if the composition comprises complex formers selected from ethylenediaminetetraacetic acid and / or trisodium ethylenediamine disuccinate.
[0056] Further it is preferred if the composition comprises water. For the case that water is contained it is preferred if the total quantity of water is in the range from 50.0 to 80.0%by weight, more preferably 55.0 to 78.0%by weight and most preferably 60.0 to 75.0%by weight, calculated to the total weight of the composition.
[0057] The compositions of the invention may further comprise active ingredients which can have a beneficial aspect for the human skin. Preferred examples of such active ingredients are glycyrrhetinic acid, arctiin, folic acid, coenzyme Q10 (ubiquinone) , alpha-glucosylrutin, carnitine, carnosine, caffeine, natural and / or synthetic isoflavonoids, glycerylglucose, creatine, creatinine, taurine, tocopherol, tocopherol acetate, vitamin C, vitamin C phosphate, vitamin C palmitate, niacinamides, vitamin A palmitate, retinol, panthenol, glycyrrhiza inflata root extract, licochalcon A, 4-butylresorcinol, N - [ (2, 4-dihydroxyphenyl) thiazol-2-yl] isobutyramide, honociol and magnolol (also as a component of Magnolia-Extracts) , hyaluronic acid and / or silymarin.Examples
[0058] The following examples should illustrate the composition of this invention, without, however, intending to limit the invention to these examples. The numerical values in the examples are percentages by weight, based on the total weight of the compositions.
[0059] The following mixtures were prepared by mixing the ingredients at 70℃ until fully dissolved.
[0060] The two formulas were stored for 1 month under conditions as outlined in in the table above. After each storage time, an HPLC Analysis was performed to determine the remaining THEA quantity in the formula.
[0061] The determination of THEA is carried out by means of HPLC-UV (DAD) using an external standard.
[0062] Column: YMC-Pack Pro C18 250 x 4.6 mm i.D. [5μm] .
[0063] Mobile phase: Methanol -Phosphoric Acid 0.1% (35: 65) .
[0064] Isocratic flow rate: 0.8 mL / min.
[0065] Temperature: 25 ℃.
[0066] Injection volume: 10μL.
[0067] Detection wavelength: 290nm.
[0068] Retention time: approx. 10.0min.
[0069] The samples are dissolved with methanol in volumetric flask, filtered through a 0.45 μm
[0070] PTFE-membrane filter and tested by HPLC.
[0071] Based on the results it can be stated that the formulation according to the invention did not show or showed reduced degradation of THEA after storing for 1 month at 50℃.
[0072] Further examples:
Claims
1.Cosmetic composition comprisinga) Ampelopsis Grossedentata Leaf Extract (THEA) , andb) 1, 2 hexanediol,whereby the ratio by weight between Ampelopsis Grossedentata Leaf Extract and 1, 2-hexanediol is in the range from 1: 10 to 1: 200.2.Composition according to claim 1 characterized in that THEA is contained in a total quantity ranging from 0.01 to 2.0%by weight, preferably from 0.05 to 1.5%by weight and more preferably from 0.1 to 1.2%by weight, calculated to the total weight of the composition.3.Composition according to any of the preceding claims characterized in that 1, 2-hexanediol is contained in a total quantity ranging from 0.1 to 99.5%by weight, preferably from 0.2 to 99.2%by weight and more preferably from 0.5 to 10.0%by weight, calculated to the total weight of the composition.4.Composition according to any of the claims 1, 2 or 3 characterized in that the ratio by weight between Ampelopsis Grossedentata Leaf Extract and 1, 2-hexanediol is in the range from 1: 20 to 1: 150, preferable 1: 25 to 1: 100 and more preferably 1: 40 to 1: 99.5.Composition according to any of the preceding claims characterized in that the composition is an emulsion.6.Composition according to claim 5 characterized in that the total quantity of the oil phase of the emulsion is in the range from 12 to 35%by weight, preferably from 13 to 30%by weight and more preferably from 14 to 25%by weight, calculated to the total weight of the composition.7.Composition according to any of the preceding claims characterized in that caprylic / capric triglyceride is contained whereby it is preferred if the total quantity of caprylic / capric triglyceride is in the range from 0.1 to 10%by weight, more preferably from 2 to 8%by weight and most preferably 3 to 6%by weight, calculated to the total weight of the composition.8.Composition according to any of the preceding claims characterized in that that Butyrospermum Parkii (Shea) Butteris is contained, whereby it is preferred if the total quantity of Butyrospermum Parkii (Shea) Butteris in the range from 0.1 to 10%by weight, more preferably from 2 to 8%by weight and most preferably 3 to 6%by weight, calculated to the total weight of the composition.9.Composition according to any of the preceding claims characterized in that xanthan gum is contained, whereby it is preferred if the total quantity of xanthan gum is in the range from 0.01 to 0.8%by weight, more preferably 0.05 to 0.5%by weight and most preferably 0.1 to 0.4%by weight, calculated to the total weight of the composition.10.Composition according to any of the preceding claims characterized in that water is contained, whereby it is preferred if the total quantity of water is in the range from 50.0 to 80.0%by weight, more preferably 55.0 to 78.0%by weight and most preferably 60.0 to 75.0%by weight, calculated to the total weight of the composition.11.Use of 1, 2-hexanediol to avoid or reduce the discoloration of cosmetic compositions comprising Ampelopsis Grossedentata Leaf Extract.12.Use of 1, 2-hexanediol to avoid the degradation of Ampelopsis Grossedentata Leaf Extract in a cosmetic composition.