Methods, compositions, and kits for coloring hair
View Patent ↗A method for oxidatively coloring hair comprising applying to the hair fibers a first composition comprising at least one oxidative dye operable to color hair when reacted with an oxidizing agent, said first composition being free of such oxidizing agent and thereby inoperative, by itself, to color hair; removing said first composition from the hair but leaving residual oxidative dye in contact with the hair fibers; applying, for a time, and in an amount sufficient to color the hair, a second composition to the hair fibers comprising at least one oxidizing agent reactive with the at least one oxidative dye in contact with the hair fibers after removal of the first composition; and a kit for use in practicing the method.
1. A method for oxidatively coloring hair comprising:
(a) applying to the hair fibers a first composition comprising at least one oxidative dye operable to color hair when reacted with an oxidizing agent, said first composition being free of such oxidizing agent and thereby inoperative, by itself, to color hair;
(b) removing said first composition from the hair but leaving residual oxidative dye in contact with the hair fibers;
(c) applying, for a time, and in an amount sufficient to color the hair, a second composition to the hair fibers comprising at least one oxidizing agent reactive with the at least one oxidative dye in contact with the hair fibers after removal of the first composition.
2. The method of claim 1 wherein the first composition has a pH ranging from about 7.0 to about 12.0.
3. The method of claim 1 wherein the first composition is a shampoo.
4. The method of claim 1 wherein the first composition is a shampoo comprising water, at least one cleansing surfactant, at least one primary intermediate, and, optionally, at least one coupler.
5. The method of claim 1 wherein the first composition is a shampoo composition comprising, by weight of the total composition:
about 0.1–55% cleansing surfactant,
about 0.001–40% of at least one primary intermediate,
about 0.0001–40% of at least one coupler; and
about 1–99% water.
6. The method of claim 1 wherein the shampoo composition comprises, by weight of the total composition,
about 0.1–55% of a cleansing surfactant selected from the group consisting of anionic, amphoteric, zwitterionic, and mixtures thereof,
about 0.001–40% of at least one primary intermediate,
about 0.0001–40% of at least one coupler; and
about 1–99% water.
7. The method of claim 6 wherein the cleansing surfactant comprises an anionic surfactant.
8. The method of claim 7 wherein the anionic surfactant is an alkyl sulfate, alkyl ether sulfate, or mixtures thereof.
9. The method of claim 1 wherein the second composition comprises a hair conditioner.
10. The method of claim 1 wherein the second composition comprises a shampoo or hair conditioner having a pH ranging from about 3.0 to 6.0.
11. The method of claim 1 wherein the second composition is a hair conditioner comprising water, at least one oxidizing agent, and at least one conditioning agent.
12. The method of claim 1 wherein the second composition is a hair conditioner comprising, by weight of the total composition:
about 1–95% water,
about 0.1–55% oxidizing agent, and
about 0.01–45% conditioning agent.
13. The method of claim 1 wherein the first composition is removed from the hair by rinsing with water.
14. The method of claim 1 wherein the first composition is a hair conditioner and the second composition is a shampoo.
15. A kit containing a shampoo and conditioner composition for restoring and rejuvenating the color of the hair, said kit comprised of:
(a) a first container containing a shampoo composition comprising at least one oxidative dye operable to color hair when reacted with an oxidizing agent, said shampoo composition being free of such oxidizing agent and thereby inoperative, by itself, to color hair;
(b) a second container containing a conditioner composition comprising at least one oxidizing agent reactive with the at least one oxidative dye present in the shampoo composition.
16. The kit of claim 15 wherein the shampoo composition contains dyes that provide Level 1 through Level 10 hair color.
17. The kit of claim 15 wherein the conditioner composition has a hydrogen peroxide concentration of about 1 to 30 volume.
18. The kit of claim 15 wherein the conditioner composition has a hydrogen peroxide concentration ranging from about 1 to 10 volume.
19. The kit of claim 15 wherein the conditioner composition has a hydrogen peroxide concentration of about 5 volume.