Cosmetic compositions containing decarboxylated oligopeptide and pyracantha extract and methods for treating lipofuscin
Patent Information
- Application Number
- EP2023928060
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-03-23
- Publication Date
- 2026-05-13
Smart Images

Figure PCTCN2023083247-FTAPPB-I100001 
Figure PCTCN2023083247-FTAPPB-I100002 
Figure PCTCN2023083247-FTAPPB-I100003
Abstract
Description
COSMETIC COMPOSITIONS CONTAINING DECARBOXYLATED OLIGOPEPTIDE AND PYRACANTHA EXTRACT AND METHODS FOR TREATING LIPOFUSCIN
[0001] Background of the Disclosure
[0002] The cosmetic industry has put great efforts in skin pigment treatments, due to pigments’ role in the perceptions of skin perfection and skin aging. For example, there are many products developed for “age spots” treatments, which are skin blemishes rich with pigments and have been recognized to be associated with aging.
[0003] The cosmetic products generally take following approaches to treat skin pigments: 1) removing existing pigments from the skin, wholly or partially; and / or 2) preventing or slowing the pigment generation and / or accumulation in the skin. Since the approach 1) and 2) generally achieve the pigment reduction efficacies through different mechanisms, a method or a product works for one approach is not expected to work for the other. Also, when taking the second approach, a method or a product capable of preventing or slowing one pigment’s generation and / or accumulation is generally not expected to have similar efficacies for other pigments, because different pigments have different chemical characteristics, and are generally generated and accumulated in the skin through different pathways.
[0004] Lipofuscin, often called the “age pigment, ” is a complex mixture of protein and lipid derivatives, showing yellow-brown color under optical microscopes and having autofluorescence properties. Lipofuscin has been associated with aging because its abundance in human tissues closely correlates with the object’s age. For example, in the skincare field, lipofuscin is recognized as one of two key pigments (another is melanin) contributing to “age spots. ” Due to the connection between lipofuscin and aging, the cosmetic industry highly desire active ingredients, compositions, and methods capable of reducing lipofuscin in the skin. However, the treatment of lipofuscin is very hard to come by, because 1) lipofuscin is known as a difficult pigment to remove once produced in the skin; and 2) the scientific community still lacks good understanding of the mechanism / pathway of the lipofuscin generation and / or accumulation so no targeted research can be conducted.
[0005] This disclosure is directed to cosmetic compositions comprising decarboxylated oligopeptide and Pyracantha extract, and methods for treating lipofuscin in the skin by the topical application of cosmetic compositions comprising at least one decarboxylated oligopeptide and at least one Pyracantha extract.Detailed Description
[0006] Definitions and Conventions
[0007] All percentages mentioned herein are percentages by weight unless otherwise indicated.
[0008] As used herein, “decarboxylation” means a chemical reaction that removes a carboxyl group and releases carbon dioxide.
[0009] As used herein, “decarboxylated amino acid” means an amino acid derivative that is the decarboxylation product of the corresponding amino acid. For example, the decarboxylated tryptophan is tryptamine; the decarboxylated phenylalanine is phenylethylamine; the decarboxylated tyrosine is tyramine; the decarboxylated histidine is histamine; the decarboxylated serine is ethanolamine; the decarboxylated glutamic acid is gamma-aminobutyric acid; the decarboxylated lysine is cadaverine; the decarboxylated arginine is agmatine; the decarboxylated proline is pyrrolidine; the decarboxylated ornithine is putrescine; the decarboxylated 5-hydroxytryptophan is serotonin; and the decarboxylated levodopa is dopamine.
[0010] As used herein, “peptide” means a chain of amino acids linked by peptide bonds.
[0011] As used herein, “oligopeptide” means a short chain peptide consisting of two to twenty amino acids, including dipeptides, tripeptides, tetrapeptides, and pentapeptides.
[0012] As used herein, “decarboxylated peptide” means a peptide derivative where its C-terminal amino acid is replaced by a corresponding decarboxylated amino acid.
[0013] As used herein, "comprising" means that a list of elements is not necessarily limited to those explicitly recited.
[0014] As used herein, "cosmetically acceptable" means that compositions or components are suitable for use in contact with human keratinous tissue.
[0015] As used herein, "molecular weight" refers to the weight average molecular weight, unless otherwise stated.
[0016] As used herein, "QS" means sufficient quantity for 100%.
[0017] Unless otherwise stated: all numerical amounts are understood to be modified by the word "about, " all percentages are by weight of the total composition, and all ratios are weight ratios.
[0018] It should be understood that every numerical range expressly recited herein will include every narrower numerical range that falls within such broader numerical range, as if such narrower numerical ranges were all expressly recited herein.
[0019] As used herein, the singular forms “a, ” “an, ” and “the” include the plural reference unless the context clearly dictates otherwise. Thus, for example, a reference to “an element” is a reference to one or more elements and includes equivalents thereof known to those skilled in the art. Similarly, for another example, a reference to “a step” or “a means” is a reference to one or more steps or means and may include sub-steps and subservient means.
[0020] As used herein, a sentence reciting a string of alternates is to be interpreted as if a string of sentences were provided such that each given alternate was provided in a sentence by itself. For example, the sentence “In some embodiments, the composition comprises A, B, or C” is to be interpreted as if written as the following three separate sentences: “In some embodiments, the composition comprises A. In some embodiments, the composition comprises B. In some embodiments, the composition comprises C. ” As another example, the sentence “In some embodiments, the composition comprises at least A, B, or C” is to be interpreted as if written as the following three separate sentences: “In some embodiments, the composition comprises at least A. In some embodiments, the composition comprises at least B. In some embodiments, the composition comprises at least C. ”
[0021] As used herein, “and / or” means “and” or “or” . For example, “A and / or B” means “A, B, or both A and B, ” and “A, B, C, and / or D” means “A, B, C, D, or a combination thereof, ” and said “A, B, C, D, or a combination thereof” means any subset of A, B, C, and D, for example, a single member subset (e.g., A or B or C or D) , a two-member subset (e.g., A and B; A and C; etc. ) , or a three-member subset (e.g., A, B, and C; or A, B, and D; etc. ) , or all four members (e.g., A, B, C, and D) .
[0022] A. Methods
[0023] In some embodiments, the disclosure is related to methods for treating lipofuscin, the methods comprise the topical application of a cosmetic composition comprising at least one decarboxylated oligopeptide and at least one Pyracantha extract.
[0024] In some preferred embodiments, the methods for treating lipofuscin comprising the topical application of a cosmetic composition having an effectiveness in preventing or slowing the lipofuscin generation and / or accumulation.
[0025] B. Cosmetic Compositions
[0026] In some embodiments, the cosmetic compositions of the disclosure may be topical compositions. In one aspect, the topical compositions may be in the form of solids, liquids, or gels. In one aspect, the topical compositions may be aqueous based or anhydrous. Aqueous based compositions may be in the form of emulsions, solutions, or dispersions.
[0027] This disclosure is directed to cosmetic compositions comprising at least one decarboxylated oligopeptide and at least one Pyracantha extract.
[0028] Decarboxylated Oligopeptide
[0029] Some decarboxylated peptides are naturally occurring, as the decarboxylation products of the corresponding peptides. In biological organisms, the decarboxylation reaction of a peptide requires specific enzymes and strict conditions, which are highly unlikely to be met in topical application situations. It is also understood in the field that decarboxylated peptides typically play very different roles / functions in the biological pathways from the roles that their corresponding peptides play.
[0030] The cosmetic composition of the disclosure may contain at least one decarboxylated oligopeptide. The total weight of the at least one decarboxylated oligopeptide may range from about 0.0001 to about 5%, preferably from about 0.001 to about 1%, more preferably from about 0.005 to about 0.1%, most preferably from about 0.01 to about 0.05%, by the total weight of the cosmetic composition. In some preferred embodiments, the cosmetic composition of this disclosure contains one decarboxylated oligopeptide.
[0031] A decarboxylated oligopeptide of this disclosure may comprise a compound of the formula (I) :
[0032] R1-X1- (AA) n-X2-R2
[0033] where:
[0034] X1 represents an N-terminal amino acid;
[0035] X2 represents a decarboxylated amino acid;
[0036] AA represents any amino acid or derivative thereof, and n is 0 or 1;
[0037] R1 represents the primary amine function ofX1, either free or substituted by a protective grouping that may be chosen from either an acetyl group, a benzoyl group, a tosyl group, or a benzyloxycarbonyl group;
[0038] when X2 does not contain a carboxyl group, R2 does not exist; when X2 contains a carboxyl group, R2 represents the hydroxyl group of the carboxyl function ofX2, either free or substituted by a protective group that may be chosen from either a C1 to C20 alkyl chain or an NH2, NHY, or NYY group with Y representing a C1 to C4 alkyl chain.
[0039] In some preferred embodiments, the amino acid is selected from the group consisting of alanine (A) , arginine (R) , asparagine (N) , aspartic acid (D) , cysteine (C) , glutamic acid (E) , glutamine (Q) , glycine (G) , histidine (H) , isoleucine (I) , leucine (L) , lysine (K) , methionine (M) , phenylalanine (F) , proline (P) , serine (S) , threonine (T) , tryptophan (W) , tyrosine (Y) , valine (V) , and mixtures thereof.
[0040] The decarboxylated oligopeptide of this disclosure may be in the free form or in the salt form. When in the salt form, the decarboxylated oligopeptide may be in the form of the trifluoroacetate salt, the acetate salt, or the chloride salt. The preferred salt form of the decarboxylated oligopeptide is the chloride salt form.
[0041] In some embodiments, n is 1 and the decarboxylated oligopeptide is a decarboxylated tripeptide.
[0042] In some embodiments, n is 0 and the decarboxylated oligopeptide is a decarboxylated dipeptide.
[0043] In some preferred embodiments, X1 is selected from the group consisting of alanine, glycine, isoleucine, leucine, and valine.
[0044] In some alternative preferred embodiments, X2 is selected from the group consisting of tryptamine, histamine, cadaverine, agmatine, and pyrrolidine.
[0045] In some more preferred embodiments, X1 is selected from the group consisting of alanine, glycine, isoleucine, leucine, and valine; and X2 is selected from the group consisting of tryptamine, histamine, cadaverine, agmatine, and pyrrolidine.
[0046] In some alternative more preferred embodiments, X1 is alanine.
[0047] In some alternative more preferred embodiments, X2 is histamine.
[0048] In some particularly preferred embodiments, X1 is alanine and X2 is histamine.
[0049] In some preferred embodiments, R1 is free.
[0050] In some preferred embodiments, n is 0.
[0051] In the most preferred embodiment, X1 is alanine, X2 is histamine, R1 is free, and n is 0. When such most preferred embodiment is in the free form, the decarboxylated oligopeptide is carcinine (alternatively called decarboxy carnosine) . When such most preferred embodiment is in the chloride salt form, the decarboxylated oligopeptide has the INCI name Decarboxy Carnosine HCL, which is commercially available under the trade name Alistin from Exsymol.
[0052] Pyracantha Extract
[0053] Pyracantha is a genus of thorny evergreen shrubs in the family Rosaceae, including seven species: Pyracantha angustifolia, Pyracantha atalantioides, Pyracantha coccinea, Pyracantha crenulate, Pyracantha fortuneana, Pyracantha koidzumii, and Pyracantha rogersiana. All Pyracantha species have small white flowers. Pyracantha fruits are pomes in either red, orange, or yellow colors.
[0054] The cosmetic composition of the disclosure may contain at least one Pyracantha extract. The total weight of the at least one Pyracantha extract may range from about 0.00001 to about 1%, preferably from about 0.00005 to about 0.1%, more preferably from about 0.0001 to about 0.05%, most preferably from about 0.0005 to about 0.01%, by the total weight of the cosmetic composition. In some preferred embodiments, the cosmetic composition of this disclosure contains one Pyracantha extract.
[0055] In some embodiments, the Pyracantha extract of this disclosure may be selected from the group consisting of Pyracantha angustifolia extract, Pyracantha atalantioides extract, Pyracantha coccinea extract, Pyracantha crenulate extract, Pyracantha fortuneana extract, Pyracantha koidzumii extract, Pyracantha rogersiana extract, and mixtures thereof. The preferred Pyracantha extract is the Pyracantha fortuneana extract.
[0056] In some embodiments, the Pyracantha extract of this disclosure may be selected from the group consisting of Pyracantha plant extract, Pyracantha fruit extract, Pyracantha flower extract, Pyracantha leaf extract, Pyracantha stem extract, Pyracantha root extract, and mixtures thereof. The preferred Pyracantha extract is the Pyracantha fruit extract.
[0057] In some embodiments, the Pyracantha extract of this disclosure may be selected from the group consisting of Pyracantha angustifolia extract, Pyracantha atalantioides extract, Pyracantha coccinea extract, Pyracantha crenulate extract, Pyracantha fortuneana extract, Pyracantha koidzumii extract, and Pyracantha rogersiana extract, and mixtures thereof; wherein the Pyracantha extract is made from Pyracantha plant, Pyracantha fruit, Pyracantha flower, Pyracantha leaf, Pyracantha stem, Pyracantha root, or mixtures thereof.
[0058] In some preferred embodiments, the Pyracantha extract of this disclosure is the Pyracantha fortuneana fruit extract.
[0059] In some more preferred embodiments, the Pyracantha fortuneana fruit extract is prepared by enzymatic hydrolysis. Preferably, the enzymatic hydrolysis is conducted with a mixture of enzymes comprising polygalacturonase, cellulase and pectinase. More preferably, the weight ratio of polygalacturonase, cellulase and pectinase in the mixture of enzymes is 1: 1: 1.
[0060] A non-limiting example of the Pyracantha fortuneana fruit extract is commercially available under the trade name Wonder Flame from Ingredi Biotech.
[0061] Preferably, the Pyracantha fortuneana fruit extract may be prepared according to the process described in WO2022227286A1, which is incorporated herein in its entirety. The preparation process comprises following steps: 1) Enzymatic hydrolysis: take Pyracantha fruit, add compound enzymes for enzymatic hydrolysis, and obtain an enzymatic hydrolysis mixture; 2) Alcohol extraction: adding ethanol to the enzymatic hydrolysis mixture for extraction, filtering, and concentrating to obtain an ethanol extract; 3) Macroporous adsorption resin purification: the ethanol extract is loaded on the macroporous adsorption resin for purification, and the analytical solution is collected; and 4) Drying: Concentrate and dry the analytical solution to obtain the solution. Preferably, in the step 1) , the compound enzymes for enzymatic hydrolysis comprise polygalacturonase, cellulase and pectinase; the temperature of enzymatic hydrolysis is from about 37 ℃ to about 42 ℃; the enzymatic hydrolysis period is from about 1 to about 3 hours; and the pH value of enzymatic hydrolysis mixture is from about 4.5 to about 6.5. More preferably, in the step 1) , the weight ratio of polygalacturonase, cellulase and pectinase in the compound enzymes is 1: 1: 1. Preferably, in the step 3) , the macroporous adsorption resin is selected from the group consisting of ADS-7, LS-300B, NKA-9, HPD300, HPD600, HPD100, LS46, LS32, LS308, AB-8, LS305, and D101.
[0062] In some preferred embodiments, the weight ratio of at least one decarboxylated oligopeptide to at least one Pyracantha extract may range from about 1: 20 to about 500: 1, preferably from about 1: 10 to about 300: 1, more preferably from about 1: 5 to about 200: 1, most preferably from about 1: 1 to about 100: 1.
[0063] In some more preferred embodiments, the cosmetic composition of the disclosure comprises one decarboxylated oligopeptide and one Pyracantha extract.
[0064] In some most preferred embodiments, the cosmetic composition of the disclosure comprises carcinine and Pyracantha fortuneana fruit extract.
[0065] In some most preferred embodiments, the cosmetic composition of the disclosure comprises Decarboxy Carnosine HCL and Pyracantha fortuneana fruit extract.
[0066] In some particularly preferred embodiments, the cosmetic composition of the disclosure comprises Decarboxy Carnosine HCL and Pyracantha fortuneana fruit extract, wherein the weight ratio of Decarboxy Carnosine HCL to Pyracantha fortuneana fruit extract ranges from about 1: 20 to about 500: 1, preferably from about 1: 10 to about 300: 1, more preferably from about 1: 5 to about 200: 1, most preferably from about 1: 1 to about 100: 1.
[0067] Other ingredients:
[0068] The topical composition may further contain the following ingredients:
[0069] Oils
[0070] Suitable oils include silicones, esters, vegetable oils, synthetic oils, including but not limited to those set forth herein. The oils may be volatile or nonvolatile, and are preferably in the form of a pourable liquid at room temperature. If present, the oils may range from about 0.5 to about 85%, preferably from about 1 to about 75%, more preferably from about 5 to about 65%by weight of the total composition.
[0071] Cyclic and linear volatile silicones are available from various commercial sources including Dow Chemical Corporation and Momentive (formerly General Electric Silicones) . The Dow Chemical linear volatile silicones are sold under the trade names Dowsil and Xiameter 244, 245, 344, and 200 fluids. These fluids include hexamethyldisiloxane (viscosity 0.65 centistokes (abbreviated cst) ) , octamethyltrisiloxane (1.0 cst) , decamethyltetrasiloxane (1.5 cst) , dodecamethylpentasiloxane (2 cst) and mixtures thereof, with all viscosity measurements being at 25 ℃.
[0072] Suitable branched volatile silicones include alkyl trimethicones such as methyl trimethicone, a branched volatile silicone having the general formula:
[0073] Methyl trimethicone may be purchased from Shin-Etsu Silicones under the trade name TMF-1.5, having a viscosity of 1.5 centistokes at 25℃.
[0074] Also suitable are various straight or branched chain paraffinic hydrocarbons having 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, or 20 carbon atoms, more preferably 8 to 16 carbon atoms. Suitable hydrocarbons include pentane, hexane, heptane, decane, dodecane, tetradecane, tridecane, and C8-20isoparaffins. Suitable C12 isoparaffins are manufactured by Permethyl Corporation under the tradename Permethyl 99A. Various C16 isoparaffins commercially available, such as isohexadecane (having the tradename Permethyl R) , are also suitable.
[0075] Also suitable are esters formed by the reaction of a carboxylic acid and an alcohol. The alcohol and the carboxylic acids may both have fatty (C6-30) chains. Examples include hexyl laurate, butyl isostearate, hexadecyl isostearate, cetyl palmitate, isostearyl neopentanoate, stearyl heptanoate, isostearyl isononanoate, stearyl lactate, stearyl octanoate, stearyl stearate, isononyl isononanoate, and so on.
[0076] The ester may also be in the dimer or trimer form. Examples of such esters include diisotearyl malate, neopentyl glycol dioctanoate, dibutyl sebacate, dicetearyl dimer dilinoleate, dicetyl adipate, diisocetyl adipate, diisononyl adipate, diisostearyl dimer dilinoleate, diisostearyl fumarate, diisostearyl malate, dioctyl malate, and so on.
[0077] Examples of other types of esters include those from arachidonic, citric, or behenic acids, such as triarachidin, tributyl citrate, triisostearyl citrate, tri C12-13 alkyl citrate, tricaprylin, tricaprylyl citrate, tridecyl behenate, trioctyldodecyl citrate, tridecyl behenate; or tridecyl cocoate, tridecyl isononanoate, and so on.
[0078] Synthetic or naturally occurring glyceryl esters of fatty acids, or triglycerides, are also suitable for use in the compositions. Both vegetable and animal sources may be used. Examples of such oils include castor oil, lanolin oil, C10-18 triglycerides, caprylic / capric / triglycerides, sweet almond oil, apricot kernel oil, sesame oil, camelina sativa oil, tamanu seed oil, coconut oil, corn oil, cottonseed oil, linseed oil, ink oil, olive oil, palm oil, illipe butter, rapeseed oil, soybean oil, grapeseed oil, sunflower seed oil, walnut oil, and the like.
[0079] Also suitable are synthetic or semi-synthetic glyceryl esters, such as fatty acid mono-, di-, and triglycerides which are natural fats or oils that have been modified, for example, mono-, di-or triesters of polyols such as glycerin. In an example, a fatty (C12-22) carboxylic acid is reacted with one or more repeating glyceryl groups. glyceryl stearate, diglyceryl diiosostearate, polyglyceryl-3 isostearate, polyglyceryl-4 isostearate, polyglyceryl-6 ricinoleate, glyceryl dioleate, glyceryl diisotearate, glyceryl tetraisostearate, glyceryl trioctanoate, diglyceryl distearate, glyceryl linoleate, glyceryl myristate, glyceryl isostearate, PEG castor oils, PEG glyceryl oleates, PEG glyceryl stearates, PEG glyceryl tallowates, and so on.
[0080] Nonvolatile silicone oils, both water soluble and water insoluble, are also suitable for use in the composition. Such silicones preferably have a viscosity ranging from about greater than 5 to 800,000 cst, preferably 20 to 200,000 cst at 25℃. Suitable water insoluble silicones include amine functional silicones such as amodimethicone. Examples include dimethicone, phenyl dimethicone, diphenyl dimethicone, phenyl trimethicone, or trimethylsiloxyphenyl dimethicone. Other examples include alkyl dimethicones such as cetyl dimethicone, stearyl dimethcone, behenyl dimethicone, and the like.
[0081] Surfactants
[0082] The composition may contain one or more surfactants, especially if in the emulsion form. However, such surfactants may be used if the compositions are anhydrous also, and will assist in dispersing ingredients that have polarity, for example pigments. Such surfactants may be silicone or organic based. The surfactants will aid in the formation of stable emulsions of either the water-in-oil or oil-in-water form. If present, the surfactant may range from about 0.001 to 30%, preferably from about 0.005 to 25%, more preferably from about 0.1 to 20%by weight of the total composition.
[0083] Silicone surfactants may be generically referred to as dimethicone copolyol or alkyl dimethicone copolyol. In some cases the number of repeating ethylene oxide or propylene oxide units in the polymer are also specified, such as a dimethicone copolyol that is also referred to as PEG-15 / PPG-10 dimethicone, which refers to a dimethicone having substituents containing 15 ethylene glycol units and 10 propylene glycol units on the siloxane backbone. It is also possible for one or more of the methyl groups in the above general structure to be substituted with a longer chain alkyl (e.g. ethyl, propyl, butyl, etc. ) or an ether such as methyl ether, ethyl ether, propyl ether, butyl ether, and the like.
[0084] Examples of silicone surfactants are those sold by Dow Silicones under the tradename Dowsil 3225C Formulation Aid having the CTFA name cyclotetrasiloxane (and) cyclopentasiloxane (and) PEG / PPG-18 dimethicone; or 5225C Formulation Aid, having the CTFA name cyclopentasiloxane (and) PEG / PPG-18 / 18 dimethicone; or Dowsil 190 Surfactant having the CTFA name PEG / PPG-18 / 18 dimethicone; or Dowsil 193 Fluid, Dowsil 5200 having the CTFA name lauryl PEG / PPG-18 / 18 methicone; or Abil EM 90 having the CTFA name cetyl PEG / PPG-14 / 14 dimethicone sold by Goldschmidt; or Abil EM 97 having the CTFA name bis-cetyl PEG / PPG-14 / 14 dimethicone sold by Goldschmidt; or Abil WE 09 having the CTFA name cetyl PEG / PPG-10 / 1 dimethicone in a mixture also containing polyglyceryl-4 isostearate and hexyl laurate; or KF-6011 sold by Shin-Etsu Silicones having the CTFA name PEG-11 methyl ether dimethicone; KF-6012 sold by Shin-Etsu Silicones having the CTFA name PEG / PPG-20 / 22 butyl ether dimethicone; or KF-6013 sold by Shin-Etsu Silicones having the CTFA name PEG-9 dimethicone; or KF-6015 sold by Shin-Etsu Silicones having the CTFA name PEG-3 dimethicone; or KF-6016 sold by Shin-Etsu Silicones having the CTFA name PEG-9 methyl ether dimethicone; or KF-6017 sold by Shin-Etsu Silicones having the CTFA name PEG-10 dimethicone; or KF-6038 sold by Shin-Etsu Silicones having the CTFA name lauryl PEG-9 polydimethylsiloxyethyl dimethicone.
[0085] Also suitable are various types of crosslinked silicone surfactants that are often referred to as emulsifying elastomers that contain at least one hydrophilic moiety such as polyoxyalkylenated groups. Polyoxyalkylenated silicone elastomers that may be used in at least one embodiment of the disclosure include those sold by Shin-Etsu Silicones under the names KSG-21, KSG-20, KSG-30, KSG-31, KSG-32, KSG-33; KSG-210 which is dimethicone / PEG-10 / 15 crosspolymer dispersed in dimethicone; KSG-310 which is PEG-15 lauryl dimethicone crosspolymer; KSG-320 which is PEG-15 lauryl dimethicone crosspolymer dispersed in isododecane; KSG-330 (the former dispersed in triethylhexanoin) , KSG-340 which is a mixture of PEG-10 lauryl dimethicone crosspolymer and PEG-15 lauryl dimethicone crosspolymer.
[0086] Also suitable are polyglycerolated silicone elastomers like those disclosed in PCT / WO 2004 / 024798, which is hereby incorporated by reference in its entirety. Such elastomers include Shin-Etsu’s KSG series, such as KSG-710 which is dimethicone / polyglycerin-3 crosspolymer dispersed in dimethicone; or lauryl dimethicone / polyglycerin-3 crosspolymer dispersed in a variety of solvent such as isododecane, dimethicone, triethylhexanoin, sold under the Shin-Etsu tradenames KSG-810, KSG-820, KSG-830, or KSG-840. Also suitable are silicones sold by Dow Silicones under the tradenames 9010 and DC9011.
[0087] The composition may comprise one or more nonionic organic surfactants. Suitable nonionic surfactants include alkoxylated alcohols, or ethers, formed by the reaction of an alcohol with an alkylene oxide, usually ethylene or propylene oxide. Preferably the alcohol is either a fatty alcohol having 6 to 30 carbon atoms. Examples of such ingredients include Steareth 2-100, which is formed by the reaction of stearyl alcohol and ethylene oxide and the number of ethylene oxide units ranges from 2 to 100; Beheneth 5-30 which is formed by the reaction of behenyl alcohol and ethylene oxide where the number of repeating ethylene oxide units is 5 to 30; Ceteareth 2-100, formed by the reaction of a mixture of cetyl and stearyl alcohol with ethylene oxide, where the number of repeating ethylene oxide units in the molecule is 2 to 100; Ceteth 1-45 which is formed by the reaction of cetyl alcohol and ethylene oxide, and the number of repeating ethylene oxide units is 1 to 45, and so on. All recitations ofunits include all whole integers between the range.
[0088] Other alkoxylated alcohols are formed by the reaction of fatty acids and mono-, di-or polyhydric alcohols with an alkylene oxide. For example, the reaction products of C6-30 fatty carboxylic acids and polyhydric alcohols which are monosaccharides such as glucose, galactose, methyl glucose, and the like, with an alkoxylated alcohol. Examples include polymeric alkylene glycols reacted with glyceryl fatty acid esters such as PEG glyceryl oleates, PEG glyceryl stearate; or PEG polyhydroxyalkanotes such as PEG dipolyhydroxystearate wherein the number of repeating ethylene glycol units ranges from 3 to 1000.
[0089] Other suitable nonionic surfactants include alkoxylated sorbitan and alkoxylated sorbitan derivatives. For example, alkoxylation, in particular ethoxylation of sorbitan provides polyalkoxylated sorbitan derivatives. Esterification of polyalkoxylated sorbitan provides sorbitan esters such as the polysorbates. For example, the polyalkyoxylated sorbitan can be esterified with C6-30, preferably C12-22 fatty acids. Examples of such ingredients include Polysorbates 20-85, sorbitan oleate, sorbitan sesquioleate, sorbitan palmitate, sorbitan sesquiisostearate, sorbitan stearate, and so on.
[0090] Humectants
[0091] It may also be desirable to include one or more humectants in the composition. If present, such humectants may range from about 0.001 to 25%, preferably from about 0.005 to 20%, more preferably from about 0.1 to 15%by weight of the total composition. Examples of suitable humectants include glycols, sugars, and the like. Suitable glycols are in monomeric or polymeric form and include polyethylene and polypropylene glycols such as PEG 4-200, which are polyethylene glycols having from 4 to 200 repeating ethylene oxide units; as well as C1-6 alkylene glycols such as propylene glycol, butylene glycol, pentylene glycol, and the like. Suitable sugars, some of which are also polyhydric alcohols, are also suitable humectants. Examples of such sugars include glucose, fructose, honey, hydrogenated honey, inositol, maltose, mannitol, maltitol, sorbitol, sucrose, xylitol, xylose, and so on. Also suitable is urea. Preferably, the humectants used in the composition of the disclosure are C1-6, preferably C2-4 alkylene glycols, most particularly butylene glycol.
[0092] Botanical Extracts
[0093] It may be desirable to include one or more botanical extracts in the compositions. If so, suggested ranges are from about 0.0001 to 10%, preferably about 0.0005 to 8%, more preferably about 0.001 to 5%by weight of the total composition. Suitable botanical extracts include extracts from plants (herbs, roots, flowers, fruits, seeds) such as flowers, fruits, vegetables, and so on, including yeast ferment extract, Padina Pavonica extract, thermus thermophilis ferment extract, camelina sativa seed oil, boswellia serrata extract, olive extract, Aribodopsis Thaliana extract, Acacia Dealbata extract, Acer Saccharinum (sugar maple) , acidopholus, acorus, aesculus, agaricus, agave, agrimonia, algae, aloe, citrus, brassica, cinnamon, orange, apple, blueberry, cranberry, peach, pear, lemon, lime, pea, seaweed, caffeine, green tea, chamomile, willowbark, mulberry, poppy, and those set forth on pages 1646 through 1660 of the CTFA Cosmetic Ingredient Handbook, Eighth Edition, Volume 2. Further specific examples include, but are not limited to, Glycyrrhiza Glabra, Salix Nigra, Macrocycstis Pyrifera, Pyrus Malus, Saxifraga Sarmentosa, Vitis Vinifera, Morus Nigra, Scutellaria Baicalensis, Anthemis Nobilis, Salvia Sclarea, Rosmarinus Officianalis, Citrus Medica Limonum, Panax Ginseng, Siegesbeckia Orientalis, Fructus Mume, Ascophyllum Nodosum, Bifida Ferment lysate, Glycine Soja extract, Beta Vulgaris, Haberlea Rhodopensis, Polygonum Cuspidatum, Citrus Aurantium Dulcis, Vitis Vinifera, Selaginella Tamariscina, Humulus Lupulus, Citrus Reticulata Peel, Punica Granatum, Asparagopsis, Curcuma Longa, Menyanthes Trifoliata, Helianthus Annuus, Hordeum Vulgare, Cucumis Sativus, Evernia Prunastri, Evernia Furfuracea, and mixtures thereof.
[0094] Particulate Materials
[0095] The compositions of the disclosure may contain particulate materials in the form of pigments, inert particulates, or mixtures thereof. If present, suggested ranges are from about 0.01-75%, preferably about 0.5-70%, more preferably about 0.1-65%by weight of the total composition. In the case where the composition may comprise mixtures of pigments and powders, suitable ranges include about 0.01-75%pigment and 0.1-75%powder, such weights by weight of the total composition.
[0096] The particulate matter may be colored or non-colored powders. Suitable non-pigmented powders include bismuth oxychloride, titanated mica, fumed silica, spherical silica, polymethylmethacrylate, micronized teflon, boron nitride, acrylate copolymers, aluminum silicate, aluminum starch octenylsuccinate, bentonite, calcium silicate, cellulose, chalk, corn starch, diatomaceous earth, fuller's earth, glyceryl starch, hectorite, hydrated silica, kaolin, magnesium aluminum silicate, magnesium trisilicate, maltodextrin, montmorillonite, microcrystalline cellulose, rice starch, silica, talc, mica, titanium dioxide, zinc laurate, zinc myristate, zinc rosinate, alumina, attapulgite, calcium carbonate, calcium silicate, dextran, kaolin, nylon, silica silylate, silk powder, sericite, soy flour, tin oxide, titanium hydroxide, trimagnesium phosphate, walnut shell powder, or mixtures thereof. The above mentioned powders may be surface treated with lecithin, amino acids, mineral oil, silicone, or various other agents either alone or in combination, which coat the powder surface and render the particles more lipophilic in nature.
[0097] Suitable pigments are organic or inorganic. Organic pigments are generally various aromatic types including azo, indigoid, triphenylmethane, anthroquinone, and xanthine dyes which are designated as D&C and FD&C blues, browns, greens, oranges, reds, yellows, etc. Organic pigments generally consist of insoluble metallic salts of certified color additives, referred to as the Lakes. Inorganic pigments include iron oxides, ultramarines, chromium, chromium hydroxide colors, and mixtures thereof. Iron oxides of red, blue, yellow, brown, black, and mixtures thereof are suitable.
[0098] Vitamins and Antioxidants
[0099] The compositions of the disclosure may contain vitamins and / or coenzymes, as well as antioxidants. If so, 0.001-10%, preferably 0.01-8%, more preferably 0.05-5%by weight of the total composition is suggested. Suitable vitamins include ascorbic acid and derivatives thereof such as ascorbyl palmitate, tetrahexydecyl ascorbate, and so on; the B vitamins such as thiamine, riboflavin, pyridoxin, and so on, as well as coenzymes such as thiamine pyrophoshate, flavin adenin dinucleotide, folic acid, pyridoxal phosphate, tetrahydrofolic acid, and so on. Also suitable is Vitamin E and derivatives thereof such as Vitamin E acetate, nicotinate, or other esters thereof. In addition, Vitamins D and K are suitable.
[0100] The disclosure will be further described in connection with the following examples which are set forth for the purposes of illustration only.
[0101] EXPERIMENTAL EXAMPLES
[0102] Reagents used in this experiment: 5 mg Leupeptin hemisulfate (MCE) ; Iron (III) chloride (purchased from Sigma) ; 30%Hydrogen Peroxide solution; TrypLE Express (purchased from Life Technologies) ; Asian primary Keratinocytes (purchased from Lifeline) ; DermaLife K Keratinocyte Medium Complete Kit (purchased from Lifeline) ; Decarboxy carnosine HCL (purchased from Exsymolunder the tradename Alistin) ; Pyracantha fortuneana fruit extract (purchased from Ingredi Biotech Co., LTD. under the tradename Wonder Flame) .
[0103] Instruments used in this experiment: Operetta CLS High content imaging System purchased from PerkinElmer.
[0104] Stock solutions prepared for this experiment: Leupeptin and cell culture media should be stored at 4℃ and can used throughout the experiment. Iron (III) chloride and hydrogen peroxide solutions should be prepared fresh each time when either solution is needed.
[0105] Leupeptin stock solution was prepared by dissolving 5 mg of leupeptin hemisulfate in 10.13 mL of molecular grade water to make a 1 mM stock solution.
[0106] Iron (III) chloride solution was prepared by dissolving 30.41 mg of FeCl3 in 25 mL of molecular grade water to make a 7.5 mM stock solution.
[0107] Hydrogen peroxide solution was prepared by dissolving 2.84μL of30%H2O2 in 25 mL of molecular grade water to make a 1 mM stock solution.
[0108] Experimental procedure:
[0109] Table 1. Recipe for Lipofuscin Generating Media
[0110] 1. 5x104 Keratinocytes or fibroblasts were seeded in 12-well plates for 24h before changing medium.
[0111] 2. The lipofuscin generating media was prepared according to Table 1 by mixing the stock solutions well.
[0112] 3. To each well in plate, 1 mL of the lipofuscin generating media was added.
[0113] 4. Media was replaced every 48 hours. Each time a new lipofuscin generating media solution was prepared according to Table 1 using the stock solutions created as described above. With each media change cells were washed with phosphate buffered saline (with calcium and magnesium) to eliminate any residual waste products.
[0114] 5. On the beginning of day 6 the active ingredients of interest were added at the desired concentration.
[0115] 6. The media were continuedly replaced with media having the active ingredients of interest on a 48-hour schedule.
[0116] 7. On the end of day 10 the cells were prepared for confocal to measure autofluorescence intensity.
[0117] Results:
[0118] The raw autofluorescence intensity data were collected in relative fluorescence units (RFU) . The Control data were collected on the Control Sample where the cells were prepared with only the cell culture media. The Induced data were collected on the Induced Sample where the cells were prepared with only the lipofuscin generating media without any of the active ingredients. The Ingredient data were collected on the corresponding Ingredient Sample where the cells were prepared with the lipofuscin generating media with the corresponding active ingredient or active ingredients combination. For each data point, the samples were prepared and measured for at least three times, and the average intensities and standard deviations (SD) were shown in Examples 1-4, where the Ingredient a is Decarboxy carnosine HCL and the ingredient b is Pyracantha fortuneana fruit extract. The inhibition rate is calculated based on the formula Inhibition Rate=1- ( (Ingredient Sample Average-Control Sample Average) / (Induced Sample Average-Control Sample Average) ) , where the Ingredient Sample Average is the average autofluorescence intensity of the corresponding Ingredient Sample; the Control Average is the average autofluorescence intensity of the Control Sample; and the Induced Average is the average autofluorescence intensity of the Induced Sample.
[0119] Example 1: The weight ratio of ingredients a and b at 100: 1
[0120] Example 2: The weight ratio of ingredients a and b at 20: 1
[0121] Example 3: The weight ratio of ingredients a and b at 4: 1
[0122] Example 4: The weight ratio of ingredients a and b at ratio 1: 1
[0123] The Result Analysis:
[0124] The experimental results were evaluated by the isobole method for synergistic effects, as described in the article titled “Synergistic Effects of Plant Derivatives and Conventional Chemotherapeutic Agents: An Update on the Cancer Perspective, ” Medicina 2019, 55 (4) , 110, which is herein incorporated in its entirety. According to the isobole method, when OE means the observed effects, and da and db represent the doses of ingredient a and ingredient b, respectively (thus OE (da, db) means the observed effects of the combination of Ingredients a at da and b at db; and OE (da) means the observed effects of Ingredient a at da and OE (da) means the observed effects of Ingredient b at db) , three mathematic equations may be derived: OE (da, db) =OE (da) +OE (db) (1) OE (da, db) >OE (da) +OE (db) (2) OE (da, db) <OE (da) +OE (db) (3)
[0125] If the observed effects satisfy equation (1) , the effects of two ingredients are the simple sum of the single effects, and two ingredients do not interact and thus there is no synergy.
[0126] If the observed effects satisfy equation (2) , the result represents the real synergism (or potentiation) , where the effects of two ingredients are more than the simple sum of the single effects.
[0127] If the observed effects satisfy equation (3) , the result represents the opposite effects of synergism, as the effects of two ingredients are less than the simple sum of the single effects.
[0128] In this particular experiment, OE (the observed effect) means the inhibition rate. The evaluation based on the isobole method is shown in Table 2.
[0129] Table 2: Effects of Decarboxy carnosine HCL (ingredient a) and Pyracantha fortuneana fruit extract (ingredient b) on preventing or slowing lipofuscin generation and / or accumulation.
[0130] As the data shown, each OE (da, db) is greater than the corresponding OE (da) +OE (db) for all Examples 1-4, which satisfies equation (2) . Therefore, the result represents the real synergism (or potentiation) , where the effects of two ingredients (a and b) are more than the simple sum of the single effects. In summary, the combination of Decarboxy carnosine HCL and Pyracantha fortuneana fruit extract has shown unexpected synergistic effects on preventing or slowing lipofuscin generation and / or accumulation.
[0131] Other Embodiments
[0132] While the invention has been described in connection with the preferred embodiment, it is not intended to limit the scope of the invention to the particular form set forth but, on the contrary, it is intended to cover such alternatives, modifications, and equivalents as may be included within the spirit and scope of the invention as defined by the appended claims. Therefore, other embodiments, including those can be easily modified by a person skilled in the art from the present disclosure, are also within the claims.
Claims
1.A cosmetic composition comprising at least one decarboxylated oligopeptide and at least one Pyracantha extract.2.The cosmetic composition of Claim 1, wherein the at least one decarboxylated oligopeptide is selected from the group consisting of compounds of the formula (I) : R1-X1- (AA) n-X2-R2where:X1 represents an N-terminal amino acid;X2 represents a decarboxylated amino acid;AA represents any amino acid or derivative thereof, and n is 0 or 1;R1 represents the primary amine function of X1, either free or substituted by a protective grouping that may be chosen from either an acetyl group, a benzoyl group, a tosyl group, or a benzyloxycarbonyl group; andwhen X2 does not contain a carboxyl group, R2 does not exist; or when X2 contains a carboxyl group, R2 represents the hydroxyl group of the carboxyl function of X2, either free or substituted by a protective group that may be chosen from either a C1 to C20 alkyl chain or an NH2, NHY, or NYY group with Y representing a C1 to C4 alkyl chain;and mixtures thereof.3.The cosmetic composition of Claim 2, wherein X1 is selected from the group consisting of alanine, glycine, isoleucine, leucine, and valine.4.The cosmetic composition of Claim 2, wherein X2 is selected from the group consisting of tryptamine, histamine, cadaverine, agmatine, and pyrrolidine.5.The cosmetic composition of Claim 1, wherein the at least one decarboxylated oligopeptide is present from about 0.0001 to about 5%, by the total weight of the cosmetic composition.6.The cosmetic composition of Claim 1, wherein at least one Pyracantha extract is selected from the group consisting of Pyracantha angustifolia extract, Pyracantha atalantioides extract, Pyracantha coccinea extract, Pyracantha crenulate extract, Pyracantha fortuneana extract, Pyracantha koidzumii extract, Pyracantha rogersiana extract, and mixtures thereof.7.The cosmetic composition of Claim 6, wherein at least one Pyracantha extract is selected from the group consisting of Pyracantha plant extract, Pyracantha fruit extract, Pyracantha flower extract, Pyracantha leaf extract, Pyracantha stem extract, Pyracantha root extract, and mixtures thereof.8.The cosmetic composition of Claim 1, wherein the at least one Pyracantha extract is present from about 0.00001 to about 1%, by the total weight of the cosmetic composition.9.A method for treating lipofuscin comprising the topical application of a cosmetic composition comprising at least one decarboxylated oligopeptide and at least one Pyracantha extract.10.A method for treating lipofuscin of Claim 9, wherein the cosmetic composition has an effectiveness in preventing or slowing the lipofuscin generation and / or accumulation.