Method for coloring or bleaching hair fibers
Disclosed is a method for coloring or bleaching a hair comprising steps of: (a) applying a first formulation comprising a hair coloring agent or bleaching agent in the hair and (b) applying to the hair a second formulation comprising a hair composition of an amide and/or an alkyl ammonium carboxylate salt. The amide can be a monoamide and/or a bisamide.
1. A method for coloring or bleaching hair comprising steps of:
(a) applying a first formulation comprising a hair coloring agent or bleaching agent to the hair; and
(b) applying to the hair a second formulation comprising a hair composition comprising a reaction product of L-gluconic acid delta lactone and ethanol amine and water, wherein the reaction represented by one or both of the following formulas:
wherein R 1 -R 5 and R 1 ′-R 4 ′ are hydrogen and R 6 and R 6 ′ are —CH2-CH2-OH.
2. The method of claim 1 , wherein the steps (a) and (b) are performed simultaneously.
3. The method of claim 1 , wherein the second formulation further comprises one or more pharmaceutical excipients selected from water, surfactants, vitamins, natural extracts, preservatives, chelating agents, perfumes, preservatives, antioxidants, proteins, amino acids, humectants, fragrances, emollients, penetrants, thickeners, viscosity modifiers, hair fixatives, film formers, emulsifiers, opacifying agents, propellants, liquid vehicles, carriers, salts, pH adjusting agents, neutralizing agents, buffers, hair conditioning agents, anti-static agents, anti-frizz agents, anti-dandruff agents, and combinations thereof.
4. The method of claim 3 , wherein the pharmaceutical excipient is present in an amount ranging from about 10 wt % to about 99 wt % of the second formulation.
5. The method of claim 1 , wherein the second formulation is in the form of a gel, cream, shampoo, or conditioner.
6. The method of claim 1 , wherein the step (b) is repeated one or more times.
7. The method of claim 1 , further comprising: rinsing, shampooing, or conditioning the hair, which is step (c) wherein the step (c) occurs subsequent to the step (b).
8. The method of claim 7 , wherein the step (c) is performed within about 10 seconds to about 30 minutes after the step (b).
9. The method of claim 1 , wherein the hair coloring agent is selected from the group consisting of highlighting agents, permanent coloring agents, demi-permanent coloring agents, and semi-permanent coloring agents.