Method for enhancing effects of colorants and conditioners
Methods are provided for enhancing the longevity of the binding of various benefit agents to hair and skin. Applications of traditional and non-traditional colorants and conditioners to hair and skin are amended with compositions of hair or skin-binding peptides respectively. The presence of the hair or skin-binding peptide compositions act to increase the longevity of the applied colorant or conditioner on the hair or skin.
1. A method for applying a benefit agent to hair comprising the steps of:
a) providing a hair benefit agent having affinity to hair;
b) providing a composition comprising a hair-binding peptide wherein said peptide comprise from about 7 to about 50 amino acids and wherein at least about 40 mole % are positively charged amino acids;
c) applying the benefit agent and the composition comprising a hair-binding peptide to hair for a time sufficient for the hair benefit agent and the hair-binding peptide to bind to hair.
2. A method according to claim 1 wherein the hair benefit agent is selected from the group consisting of hair colorants and hair conditioners.
3. A method according to claim 2 wherein the hair colorant is selected from the group consisting of dyes, pigments and nanoparticles.
4. A method according to claim 3 wherein the dye is selected from the group consisting of 4-hydroxypropylamino-3-nitrophenol, 4-amino-3-nitrophenol, 2-amino-6-chloro-4-nitrophenol, 2-nitro-paraphenylenediamine, N,N-hydroxyethyl-2-nitro-phenylenediamine, 4-nitro-indole, 2-nitro-5-glyceryl methylaniline, 3-methylamino-4-nitrophenoxyethanol, 3-nitro-p-hydroxyethylaminophenol, hydroxyanthraquinoneaminopropylmethyl morpholinium methosulfate, Henna, HC Blue 1, HC Blue 2, HC Yellow 4, HC Red 3, HC Red 5, HC Red 7, HC Violet 1, HC Violet 2, HC Blue 7, HC Blue 10, HC Blue 12, HC Yellow 2, HC Yellow 6, HC Yellow 8, HC Yellow 12, HC Orange 2, HC Orange 3, HC Brown 2, D&C Yellow 1, D&C Yellow 3, D&C Blue 1, Disperse Blue 3, Disperse Violet 1, Disperse Orange, Disperse Violet 4, Disperse Black 9, Basic Orange 31, Basic Yellow 57, Basic Yellow 87, HC Yellow No. 9, Basic Blue 26, Basic Blue 7, Basic Blue 99, Basic Violet 14, Basic Violet 2, Basic Brown 16, Basic Brown 17, Basic Red 2, Basic Red 51, Acid Red 33, Brilliant Black 1, eosin derivatives, and halogenated fluorescein derivatives.
5. A method according to claim 3 wherein the wherein the pigment is selected from the group consisting of D&C Red No. 36, D&C Red No. 30, D&C Orange No. 17, Green 3 Lake, Ext. Yellow 7 Lake, Orange 4 Lake, Red 28 Lake, the calcium lakes of D&C Red Nos. 7, 11, 31 and 34, the barium lake of D&C Red No. 12, the strontium lake D&C Red No. 13, the aluminum lakes of FD&C Yellow No. 5 and No. 6, the aluminum lakes of FD&C No. 40, the aluminum lakes of D&C Red Nos. 21, 22, 27, and 28, the aluminum lakes of FD&C Blue No. 1, the aluminum lakes of D&C Orange No. 5, the aluminum lakes of D&C Yellow No. 10; the zirconium lake of D&C Red No. 33, Cromophthal® Yellow, Sunfast® Magenta, Sunfast® Blue, iron oxides, calcium carbonate, aluminum hydroxide, calcium sulfate, kaolin, ferric ammonium ferrocyanide, magnesium carbonate, carmine, barium sulfate, mica, bismuth oxychloride, zinc stearate, manganese violet, chromium oxide, titanium dioxide, titanium dioxide nanoparticles, zinc oxide, barium oxide, ultramarine blue, bismuth citrate, hydroxyapatite, zirconium silicate, and carbon black particles.
6. A method according to claim 3 wherein the nanoparticles are colored polymer nanoparticles comprised of materials selected from the group consisting of polystyrene, polymethyl methacrylate, polyvinyltoluene, styrene/butadiene copolymer, and latex.
7. A method according to claim 2 wherein the hair conditioner is selected from the group consisting of cationic polymers, cationic surfactants, fatty alcohols, fatty amines, nonionic polymers, silicones, siloxanes, polymer emulsions, and nanoparticles.
8. A method according to claim 1 wherein the hair benefit agent and the composition comprising a hair-binding peptide are applied to the hair concomitantly.
9. A method according to claim 1 wherein the hair benefit agent is applied to the hair prior to the application of the composition comprising a hair-binding peptide.
10. A method according to claim 1 wherein the composition comprising a hair-binding peptide is applied to the hair prior to the application of the hair benefit agent.
11. A method according to claim 1 wherein the composition comprising the hair-binding peptide comprises a conjugate further comprising the hair-binding peptide coupled to the hair benefit agent.
12. A method according to claim 11 wherein the hair benefit agent is selected from the group consisting of hair colorants and hair conditioners.
13. A method according to claim 11 wherein the hair-binding peptide of the conjugate is covalently bonded to the benefit agent.
14. A method according to claim 1 wherein the hair benefit agent of step (a) is optionally coupled to a hair-binding peptide.
15. A method according to claim 1 wherein the hair-binding peptide is generated combinatorially by a process selected from the group consisting of phage display, yeast display, bacteria display and combinatorial solid phase peptide synthesis.
16. A method according to claim 1 wherein the hair-binding peptide is generated empirically.
17. A method according to claim 16 wherein the empirically generated peptide comprises positively charged amino acids having affinity for hair.
18. A method according to claim 1 further comprising the step of:
d) reapplying the composition comprising a hair-binding peptide to the hair for a time sufficient for the hair-binding peptide to bind to hair.
19. The method of claim 1 , wherein the hair binding peptide is from about 7 amino acids to about 25 amino acids.
20. The method of claim 1 , wherein the hair binding peptide is from about 7 amino acids to about 20 amino acids.