Methods for treating relaxed hair
AssigneeOlaplex, Inc.
InventorsEric D. Pressly, Craig J. Hawker
Life of this patent
Estimating the term…
Abstract
Methods and kits for treating hair or preventing damage in the relaxing of hair are disclosed herein. Hair that is damaged during a relaxing treatment with hydroxide-containing relaxing agents, can be treated with formulations containing one or more active agents. The active agent formulations can be applied simultaneously with the hair relaxing formulation, or optionally applied immediately following application of the relaxing formulation, to reduce damage and breakage. Use of the active agent formulation along with a relaxing treatment can be used to control the level of curl achieved or retained in the relaxed hair, as compared to the natural amount of curl in the untreated hair.
Claims19
A method for achieving a desired level of curl in hair comprising:
- (a) applying to the hair one or more relaxing agents at an alkaline pH;
- and
- (b) applying to the hair an active agent of Formula III:
- (B)m-Z-(A)n-(C)o Formula III
- wherein Z is a linker or is absent;
- wherein m and n are each an integer independently selected from 1-6, provided that m+n is at least 2;
- wherein group A is an ionizable functional group;
- wherein group B is selected from the group consisting of:
- wherein each R is independently selected from hydrogen, C1-6 alkyl, aryl, or an ionizable functional group;
- Z′ is oxygen (O), NH, or is absent;
- and G is carbon (C) and g is 1, or G is sulfur (S) and g is 2;
- wherein group C is an ionic group capable of forming a covalent bond with a thiol;
- wherein group C is ionically bonded to group A and has a charge opposite the charge of A;
- wherein o is an integer value selected from 1-6, provided that the sum of charges of groups A and C is zero;
- wherein the one or more relaxing agents cause the hair to relax;
- wherein the active agent is present in an effective amount to retain a level of curl (percent curl retention) in the treated hair in the range of about 0-99%, compared to the amount of curl in the hair prior to step (a);
- and
- wherein steps (a) and (b) are performed simultaneously.
Dependencies are inferred from the claim text.