EP0678012A4 - - Google Patents

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Publication number
EP0678012A4
EP0678012A4 EP94901569A EP94901569A EP0678012A4 EP 0678012 A4 EP0678012 A4 EP 0678012A4 EP 94901569 A EP94901569 A EP 94901569A EP 94901569 A EP94901569 A EP 94901569A EP 0678012 A4 EP0678012 A4 EP 0678012A4
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EP
European Patent Office
Prior art keywords
melanin
hair
composition
cationic
solubilized
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Application number
EP94901569A
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English (en)
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EP0678012A1 (en
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Publication of EP0678012A1 publication Critical patent/EP0678012A1/en
Publication of EP0678012A4 publication Critical patent/EP0678012A4/en
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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/49—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds
    • A61K8/4906—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds with one nitrogen as the only hetero atom
    • A61K8/4913—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds with one nitrogen as the only hetero atom having five membered rings, e.g. pyrrolidone carboxylic acid
    • A61K8/492—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds with one nitrogen as the only hetero atom having five membered rings, e.g. pyrrolidone carboxylic acid having condensed rings, e.g. indol
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q5/00—Preparations for care of the hair
    • A61Q5/06—Preparations for styling the hair, e.g. by temporary shaping or colouring
    • A61Q5/065—Preparations for temporary colouring the hair, e.g. direct dyes

Definitions

  • This invention relates to compositions and methods for temporarily coloring hair using a melanin derivative that is obtained by chemically modifying melanin to impart water solubility, which melanin derivative is characterized by anionic substituent groups when solubilized.
  • melanin precursors such as 5,6 dihydroxyindole (DHI)
  • DHI 5,6 dihydroxyindole
  • U.S. Patent 3,194,734 Seemuller et al.
  • U.S. Patent 4,808,190 Garnier et al.
  • U.S. Patent 4,888,027 Garnier et al.
  • the use of these melanin precursors has many disadvantages.
  • the primary disadvantage is that the hair colors initially produced with melanin precursors are undesirable achromatic colors (cold grays and blacks) .
  • Melanin precursor-dyed hair must undergo a second treatment step with an oxidant such as hydrogen peroxide to achieve natural chromatic colors (warm yellows, reds, and browns).
  • an oxidant such as hydrogen peroxide
  • melanin precursors are expensive and, because they are highly reactive, are difficult to work with.
  • the use of melanin precursors also results in undesirable scalp and skin staining.
  • the hair colors produced using melanin precursors are permanent hair colors. That is, hair color must grow out with the hair. Often, consumers prefer to use a temporary hair color that will wash out after one or two shampoos. However, temporary hair colors are unacceptable to consumers unless they resist fading in sunlight, do not rub off, and do not bleed when in contact with perspiration, rain, or swimming pool water.
  • Melanin pigment itself is unacceptable for use in a temporary hair dye composition because it merely coats the hair shaft without appreciable affinity for the hair shaft. Consequently, the melanin is easily rubbed off the hair and leaves hair feeling rough.
  • an aqueous composition comprising a water soluble melanin (as hereinafter described) and at least one water soluble or water dispersible cationic material provides a hair coloring composition suitable to impart a temporary color to hair that achieves these characteristics.
  • U.S. Patent 5,006,331 discloses the use of melanin that has been solubilized by triethanolamine and oxidized by ferric chloride.
  • the resultant suspension mixture of melanin, triethanolamine and ferric chloride is used to obtain compositions for skin protection, for wound healing and for strengthening hair.
  • the melanin is rendered water soluble by mildly hydrolyzing the melanin using Trypsin in an alkaline medium for several days at room temperature.
  • Melanin is present in the skin protectant compositions of Gaskin in an amount of from about 0.001 to about 0.09%, along with from about 0.0001% to about 0.27% ferric chloride, both being on a weight basis.
  • the skin protectant composition further contains up to about 5% by weight triethanolamine. While not providing a range of concentration for the amount of melanin hydrolysate for the hair protectant compositions according to her invention, Gaskin states at column 6, line 30 that it is present therein in an amount of only about 0.0015% by weight of the total composition. However, this level of Gaskin's melanin hydrolysate is wholly insufficient to impart a color to hair. Moreover, neither of Gaskin's methods provide a melanin material of an anionic character.
  • Wolfram et al. The Mechanism of Hair Bleaching. J. Soc. Cosmet. Chem. , 21:875-900 (1970), discloses extraction of melanin from hair by acid hydrolysis, and considers the reaction of melanin pigment with hydrogen peroxide. Wolfram isolates the peroxide reacted melanin by destroying the peroxide with platinum black after a reaction period of sixty minutes.
  • PCT Application WO 91/17738 discloses the use of soluble melanin derivatives in a process for producing lightly colored melanins that are aesthetically suitable for use in cosmetic compositions.
  • an aqueous composition for temporarily coloring hair comprising water soluble melanin derivatives and at least one water soluble or water dispersible cationic material. Processes for temporarily coloring hair using that composition are also provided. DETAILED PB8CRIPTIQW Of THE IWYSBH ⁇ H
  • the present invention provides aqueous compositions comprising water soluble melanin and at least one water soluble or water dispersible cationic material, which compositions are suitable for use as temporary hair colors.
  • the water soluble melanin derivatives suitable in the compositions and methods of the present invention are hereinafter referred to as "solubilized melanins," which terminology is believed to be consistent with the nomenclature used in the Wolfram article and used generally in the melanin chemistry art.
  • the solubilized melanins useful in the compositions of the present invention are obtained by chemically modifying melanin in such manner as to impart water solubility.
  • An essential aspect of the present invention is that the solubilized melanin in combination with a water soluble or water dispersible cationic material provides a hair dye composition which promotes affinity of the solubilized melanin for the hair.
  • the solubilized melanin useful in the present invention is believed to form a complex with the cationic material that has such affinity for the hair. It is further believed that the solubilized melanin contains one or more anionic substituent group that not only aid in its solubilization but also permit complexation with the cationic material. Such solubilized melanin is hereinafter referred to as anionic solubilized melanin. Melaninic materials that are dissoluble in water but which do not complex with a cationic material, for example, the melanin materials described in U.S. 5,006,331 to Gaskin, are not suitable in the compositions of the present invention. Typically, the solubilized melanins used herein have a water solubility of at least 0.1%.
  • solubilized melanins generally do not have a water solubility in excess of about 10%. Generally, the water solubility ranges from about 0.1 to about 5%. As used herein the term “melanin” refers to the insoluble pigment.
  • the solublized melanin of the present invention is made, as taught by the above-mentioned Wolfram reference, by reacting melanin with hydrogen peroxide in dilute aqueous alkaline solution, generally at room temperature.
  • the Wolfram article is incorporated herein by reference thereto.
  • the reaction proceeds typically for 30 minutes to several hours, preferably for 30 to 120 minutes, depending on the source the melanin and the concentrations of the reactants.
  • the reaction is terminated well before the peroxide begins to bleach the melanin species present in the reaction mixture.
  • the peroxide reacts with the melanin in such manner as to provide carboxylate groups to the structure of the melanin, which groups are anionic in aqueous media having a pH above 4, preferably approximately neutral, and most preferably alkaline. While solubilized melanin as obtained above may be isolated by acidification of the aqueous reaction medium, it is not preferred to do so as there is some evidence to suggest that solublized melanin in solid form ages and is less suitable in the preparation of the compositions of the present invention.
  • the soluble melanin is preferably used in the form of dilute aqueous solution having a pH above 4, preferably from about 6 to about 10, most preferably from about 7 to about 8.
  • Freshly prepared solubilized melanin in solid form may also be used with good success.
  • the solubilized melanin that is useful in this invention may be obtained from naturally-occurring, chemically synthesized, or biosynthetic melanin.
  • melanins may be isolated from a variety of natural sources, including human, primate, bovine and other animals.
  • squid melanin (sepia melanin) is commercially available.
  • biosynthetic melanin can be made by reaction of dopa and tyrosinase.
  • various synthetic routes for making melanin are known, in particular, by the oxidation of dopa under controlled conditions.
  • the source of the melanin is not critical.
  • the term "melanin" refers to the insoluble pigment.
  • solubilized melanin that is suitable for use with this invention may be obtained by any method that imparts an anionic character to the melanin molecule, i.e., solubilized melanin capable of forming a complex with the water soluble or water dispersible cationic material.
  • the amount of solubilized melanin required in the composition of this invention will vary according to factors such as the carrier used, the initial hair color of the consumer prior to dyeing, and the desired end hair color. Based on applicant's theory of the invention, the amount of solubilized melanin present in the composition would also depend upon the degree to which it complexes with the cationic material, i.e., the extent of anionic charges present on the melanin molecule.
  • the anionic character of the solubilized melanin obtained in accordance with the Wolfram article can be varied depending upon the severity and extent of the reaction between melanin and hydrogen peroxide. Thus, a more soluble material will be obtained with increasingly severe reaction conditions or longer duration of contact with peroxide.
  • a tinctorially effective amount of solubilized melanin should be used.
  • the amount of solubilized melanin required is at least about 0.1%, typically from about 0.1% up to its solubility limit in the composition, but generally less than about 5.0%, and preferably from about 0.2 to about 3.0%, all concentrations being on a weight basis.
  • a water soluble or water dispersible cationic material is the second essential constituent of the hair dye composition, along with the solubilized melanin. While not wishing to be bound by any particular theory, it is believed that the cationic material complexes with the solubilized melanin molecule, especially anionic solubilized melanin, which complex has an affinity for hair. Accordingly, the complex imparts a temporary color to the hair that, in view of its affinity for the hair, does not bleed when in contact with water. The color is also resistant to fading by sunlight, does not stain skin when properly applied to hair, and is easy to use. The hair color is easily removed by shampooing, which appears to negate the affinity of the complex for the hair.
  • water soluble or “water dispersible” is meant that an amount of cationic material sufficient to complex with the soluble melanin is either dissolved or suspended in the aqueous hair dye composition.
  • solubility of the cationic material is at least 0.1 g/100 g of composition, preferably from about 0.5 to 10 g/100 g of composition.
  • cationic material means a water soluble or water dispersible cationic material.
  • the cationic materials that may be used in the present invention must, when combined with the solubilized melanin, be capable of forming a composition that is suitable for use as a temporary hair color. That is, the mixture of cationic material and solubilized melanin must be either water soluble or water dispersible under the conditions at which they will be used.
  • the cationic material and solubilized melanin will form a stable homogeneous solution or emulsion.
  • Such cationic materials include cationic surface active agents, cationic surfactants, cationic polymers, and salts thereof. Compounds that assume a cationic character at a certain pH are also cationic materials in accordance with this invention. Suitable cationic materials that may be used are set forth, generally, in the CTFA Cosmetic Ingredient Handbook (1st Ed., 1988) at pages 40-42 (quaternary ammonium compounds) and in McCutcheon's Emulsifiers and Detergents (North Amer. Ed. 1987) at page 318 (identifying cationic and amphoteric surface active materials) . Suitability may be determined by one of ordinary skill in the hair dye art by simple experimentation.
  • Suitable cationic materials are positively charged tetra-substitutednitrogenderivatives having at least one counterion which is an anionic moiety, e.g., a halide or methosulfate.
  • illustra ⁇ tive cationic materials are alkyl trimonium halides, alkylalkonium halides and the dialkyldimonium halides, wherein the alkyl groups have about 10 to about 22 carbons and the halide is Cl or Br, for example, cetrimonium chloride, dicetyldimonium chloride, myristrimonium chloride, stearalkonium chloride, etc.; quaternium compounds, for example, quaternium-16.
  • quaternium-26, quaternium 60 etc. polymeric quaternium compounds, for example, polyquaternium l, polyquaternium- 6, polyquaternium-7, polyquaternium-11, etc.; cationic resins such as guar hydroxypropyltri onium chloride and chitosan; and amphoteric surface active agents such as sodium cocoamphopropionate.
  • the cationic material should be water soluble or water dispersible within the concentration ranges contemplated herein, in order to effect complexation with the solubilized melanin.
  • alkyltrimonium and dialkyldimonium chlorides especially stearatrimonium chloride and dicetyldimonium chloride
  • polyquaternium-6 which is a polymer of dimethyldiallyl ammonium chloride sold under the trade name Merquat 100
  • polyquaternium-39 which is a terpolymer of acrylic acid, dimethyldiallyl ammonium chloride and acrylamide sold under the trade name Merquat 3330
  • polyquaternium-11 which is a polymer obtained by reaction of dimethyl sulfate and a copolymer of vinyl pyrrolidone and dimethylaminomethacrylate sold under the trade names Gafquat 734 and 755.
  • the cationic material is present in an amount sufficient to form the aforementioned complex in the composition in sufficient concentration to effect the temporary color to hair.
  • substantially all of the cationic material and the solubilized melanin are complexed.
  • the amount of cationic material present in the composition will depend on the number of cationic charges borne by the cationic material, as well as the number of anionic charges to be neutralized on the solubilized melanin. While some degree of experimentation may be required to precisely determine the amount of cationic material, in general, the com- position should contain from about 0.1 to about 20%, preferably from about 0.1 to about 10%, most prefereably from 0.2 to 5% cationic material by weight of the total composition.
  • the weight ratio of solubilized melanin to cationic material varies widely. In general, this weight ratio will be from about 1:4 to about 10:1, preferably from about 1:1 to about 5:1.
  • compositions of this invention are stable for a period of time, as demonstrated in Example 9. That is, hair can be temporarily dyed immediately after the solubilized melanin is combined with the cationic material, or application of the composition can be delayed.
  • the pH of the composition may not be so low or high as to damage hair, the composition is useful at a wide range of pH values.
  • the correct pH for a particular composition is a function of the type of cationic material used and the amount: of solubilized melanin. In general, however, the pH of the composition will be about 3 to about 10, preferably 4 to 8.
  • solubilized melanin and the cationic material it may be desirable to include cosmetically acceptable carriers in the compositions of this invention.
  • Acceptable carriers vary from simple solutions or dispersions with aqueous or alcoholic solvents, to complex mixtures that contain thickening agents.
  • the carriers that may be used in accordance with this invention must be compatible with solubilized melanin.
  • adjuvants or additives that are commonly found in hair color compositions, in amounts effective to provide their intended function.
  • adjuvants or additives include solvents, solubilizing agents, thickening agents, alkalizing agents, chelating agents, preservatives and fragrances.
  • the solvents that may be used include organic solvents or solvent systems that are compatible with solubilized melanin.
  • organic solvents include alcohols, particularly alkyl alcohols of 1-6 carbons, especially ethanol and propanol; and glycols of up to about 10 carbons, especially diethyleneglycol, monobutyl ether, carbitols, and benzyl alcohol.
  • the thickening agents that may be used in the compositions of this invention include: polyvinylpyrrolidone, gum arabic, cellulose derivatives such as methylcellulose or hydroxyethylcellulose, and inorganic thickeners such as bentonite.
  • the additional solubilizing agents that may be used in the compositions of this invention include ethoxylated fatty alcohols.
  • the preservatives that may be used in the compositions of this invention include: methyl- and propyl paraben, 2-phenoxyethanol, DMDMH, and Kathon CG.
  • the hair color compositions of this invention may be prepared by methods known in the art generally by simple admixture of the various constituents. However, it is generally preferred, especially when the final product pH will be acidic, to use an aqueous solution of the solubilized melanin. It is further preferred to form a premix of the solubilized melanin and the cationic material to which the remaining constituents are added.
  • This invention also provides a process for temporarily coloring hair, which comprises applying to the hair an aqueous composition comprising solubilized melanin and at least one cationic material.
  • the compositions may be applied to the hair by conventional techniques known in the art. For example, they can be poured over the hair or applied with an applicator.
  • the amount of time for which the dye composition must be in contact with the hair is not critical. It may vary from about 2 minutes to about 50 minutes, but is usually from about 5 minutes to about 30 minutes.
  • the hair may be dyed by forming the hair dye complex obtained from the interaction of the solubilized melanin and the cationic material directly on the hair.
  • the process may be practiced by applying to the hair two aqueous compositions sequentially and without intermediate rinsing, one of said two aqueous compositions containing the solubilized melanin and the other containing the cationic material.
  • the hair dyeing complex is formed on the hair in situ and is evenly distributed by gentle massage of the scalp.
  • the amounts of the solubilized melanin and cationic material are the same as when a single aqueous composition is employed.
  • the concentrations of both essential constituents are seen to be based on the total weight of the two separately applied compositions.
  • the composition containing the cationic material is first applied to the hair, followed by application of the solubilized melanin-containing composition.
  • the following examples are illustrative of the present invention and should not be construed as limiting the scope of this invention in any manner.
  • sepia melanin was isolated from cuttlefish ink sacs and was used to prepare solubilized melanin according to the method described in Wolfram, et al., J. Soc. Cosmetic Chemist, 21:875-900 (1970).
  • the Hunter tristimulus values used below are measures of reflected light and describe color using three parameters: L, a, and b.
  • the more positive “a” is, the redder the color; the more negative “a” is, the greener the color.
  • the Hunter colorimetry device and system is used widely in evaluating the color of hair.
  • Solution 1 40 mg of freshly prepared solubilized melanin in particulate form was dissolved in 5 ml of water (Solution 1) .
  • 40 mg dicetyldimonium chloride was added to 5 ml of water and stirred until homogeneous (Solution 2) .
  • Solution 1 was stirred into Solution 2 (Solution 3) .
  • the pH of the 10 ml of combined solutions was 7.1.
  • the dyed tress retained its color after it was rinsed with water, but was restored to its original color after it was shampooed.
  • Example 2 The procedure described in Example 1 was repeated, except, prior to being applied to the hair, the pH of Solution 3 was adjusted to 4.4 using 0.1 M HC1. The results are set forth in Table 2.
  • Example 2 The procedure described in Example 1 was repeated except, prior to being applied to the hair, the pH of Solution 3 was adjusted to 9.0 using dilute ammonia. The results are set forth in Table 3 .
  • Example 4 4.2 Dyed Piedmont tress The procedure described in Example 4 was repeated, except, prior to being applied to the hair, the pH of Solution 30 was adjusted to 4.4 using 0.1 M HC1. The results are set forth in Table 5.
  • Example 7 The procedure described in Example 6 was repeated except, prior to being applied to the hair, the pH of Solution 300 was adjusted to 4.5 using 0.1 M HC1. The results are set forth in Table 7.
  • Formulation No. 9.1 was prepared by dissolving 40 mg of Polyquat 11 in 5 ml of water (Solution 1) . 40 mg of freshly prepared solubilized melanin in particulate form was dissolved in 5 ml water (Solution 2) . Solutions 1 and 2 were combined (Solution 3).
  • Formulation No. 9.2 was prepared by dissolving 80 mg of Polyquat 11 in 5 ml of water (Solution 1) . 80 mg of freshly prepared solubilized melanin in particulate form was dissolved in 5 ml of water (Solution 2) . Solutions 1 and 2 were combined (Solution 3). Each Formulation was applied to a tress of Piedmont hair and a tress of gray hair for 10 minutes, both immediately and 24 hours after the Formulation was prepared. The appearance of the solutions did not change during this time. The difference in hair color between the immediate and the 24 hour application is insignificant. The results are set forth in Table 9.

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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Birds (AREA)
  • Epidemiology (AREA)
  • Cosmetics (AREA)
EP94901569A 1992-11-19 1993-11-17 Compositions and methods for temporarily coloring hair using solubilized melanin Withdrawn EP0678012A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US97861192A 1992-11-19 1992-11-19
US978611 1992-11-19
PCT/US1993/011174 WO1994010968A1 (en) 1992-11-19 1993-11-17 Compositions and methods for temporarily coloring hair using solubilized melanin

Publications (2)

Publication Number Publication Date
EP0678012A1 EP0678012A1 (en) 1995-10-25
EP0678012A4 true EP0678012A4 (enrdf_load_stackoverflow) 1995-11-29

Family

ID=25526265

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94901569A Withdrawn EP0678012A1 (en) 1992-11-19 1993-11-17 Compositions and methods for temporarily coloring hair using solubilized melanin

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EP (1) EP0678012A1 (enrdf_load_stackoverflow)
AU (1) AU5611694A (enrdf_load_stackoverflow)
CA (1) CA2154750A1 (enrdf_load_stackoverflow)
WO (1) WO1994010968A1 (enrdf_load_stackoverflow)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA937753B (en) * 1992-11-19 1994-04-19 Bristol Myers Squibb Co Compositions and methods for temporarily coloring hair using chemically synthesized or biosynthetic water-soluble melanin
US5702712A (en) * 1995-12-06 1997-12-30 Clairol, Incorporated Melanoquaternary compounds and their use as hair dyes and for skin treatment
US5686084A (en) * 1995-12-06 1997-11-11 Clairol Incorporated Synthesis of quaternary melanin compounds and their use as hair dyes or for skin treatment
FR2783520B1 (fr) 1998-09-21 2000-11-10 Oreal Nouveaux 4-hydroxyindoles cationiques, leur utilisation pour la teinture d'oxydation des fibres keratiniques, compositions tinctoriales et procede de teinture
FR2817467B1 (fr) * 2000-12-04 2003-01-10 Oreal Composition de teinture pour fibres keratiniques comprenant un polymere associatif et un polymere a motifs acrylamide, halogenure de dialkyldiallylammonium et acide carboxylique vinylique
US7837742B2 (en) 2003-05-19 2010-11-23 The Procter & Gamble Company Cosmetic compositions comprising a polymer and a colorant
US20130183263A1 (en) 2012-01-17 2013-07-18 Steven Hoffman Pharmaceutical compositions and methods
US10272068B2 (en) 2012-01-17 2019-04-30 Tyme, Inc. Pharmaceutical compositions and methods
US10646552B2 (en) 2012-01-17 2020-05-12 Tyme, Inc. Pharmaceutical compositions and methods
US9585841B2 (en) 2013-10-22 2017-03-07 Tyme, Inc. Tyrosine derivatives and compositions comprising them

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0455175A2 (en) * 1990-05-02 1991-11-06 Taenaka Mining Co. Ltd. Modified melanin
WO1992016189A1 (en) * 1990-10-25 1992-10-01 Yale University Soluble melanin
FR2695033A1 (fr) * 1992-08-25 1994-03-04 Oreal Polymère colorant mélanique hydrosoluble, son procédé d'abtention et son utilisation dans des compositions cosmétiques de coloration.
EP0598407A2 (en) * 1992-11-19 1994-05-25 Bristol-Myers Squibb Company Compositions and methods for temporarily coloring hair using chemically synthesized or biosynthetic water-soluble melanin

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4806344A (en) * 1987-01-05 1989-02-21 Gaskin Frances C Sun protectant composition and method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0455175A2 (en) * 1990-05-02 1991-11-06 Taenaka Mining Co. Ltd. Modified melanin
WO1992016189A1 (en) * 1990-10-25 1992-10-01 Yale University Soluble melanin
FR2695033A1 (fr) * 1992-08-25 1994-03-04 Oreal Polymère colorant mélanique hydrosoluble, son procédé d'abtention et son utilisation dans des compositions cosmétiques de coloration.
EP0598407A2 (en) * 1992-11-19 1994-05-25 Bristol-Myers Squibb Company Compositions and methods for temporarily coloring hair using chemically synthesized or biosynthetic water-soluble melanin

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO9410968A1 *

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AU5611694A (en) 1994-06-08
EP0678012A1 (en) 1995-10-25
WO1994010968A1 (en) 1994-05-26
CA2154750A1 (en) 1994-05-26

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