Keratin treatment formulations and methods

• US 10,076,478 B2
• Filed: 04/17/2018
• Issued: 09/18/2018
• Est. Priority Date: 05/16/2014
• Status: Active Grant

• Current Assignee: Olaplex, Inc.
• Original Assignee: Liqwd, Inc.
• Inventors: Pressly, Eric D., Hawker, Craig J.
• Primary Examiner(s): VANHORN, ABIGAIL LOUISE
• Application Number:
  US15/955,455
• Publication Number:
  US 20180235857A1
• Time in Patent Office: 154 Days
• Field of Search: None
• CPC Class Codes: A45D 7/04 chemical
• CPC Class Codes: A61K 2800/591 Mixtures of compounds not provided for by any of the codes A61K2800/592 - A61K2800/596
• CPC Class Codes: A61K 2800/88 Two- or multipart kits
• CPC Class Codes: A61K 2800/882 Mixing prior to application
• CPC Class Codes: A61K 2800/884 Sequential application
• CPC Class Codes: A61K 2800/94 Involves covalent bonding to the substrate
• CPC Class Codes: A61K 8/06 Emulsions
• CPC Class Codes: A61K 8/34 Alcohols
• CPC Class Codes: A61K 8/342 Alcohols having more than seven atoms in an unbroken chain
• CPC Class Codes: A61K 8/345 containing more than one hydroxy group
• CPC Class Codes: A61K 8/36 Carboxylic acids; Salts or anhydrides thereof
• CPC Class Codes: A61K 8/362 Polycarboxylic acids
• CPC Class Codes: A61K 8/416 Quaternary ammonium compounds A61K8/35 takes precedence
• CPC Class Codes: A61K 8/42 Amides
• CPC Class Codes: A61K 8/466 containing sulfonic acid derivatives; Salts
• CPC Class Codes: A61K 8/84 obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
• CPC Class Codes: A61Q 5/02 Preparations for cleaning the hair
• CPC Class Codes: A61Q 5/04 Preparations for permanent waving or straightening the hair
• CPC Class Codes: A61Q 5/08 Preparations for bleaching the hair
• CPC Class Codes: A61Q 5/10 Preparations for permanently dyeing the hair
• CPC Class Codes: A61Q 5/12 : Preparations containing hair conditioners

Abstract

Formulations, kits, and methods for rebuilding the disulfide bonds in keratin found in hair, skin, or nails. Hair that is damaged due to a hair coloring treatment and/or other reducing treatment, such as during a permanent wave, can be treated with the formulations containing one or more active agents. The formulations may be applied subsequent to a hair coloring treatment or simultaneously with a hair coloring treatment. Use of the active agent formulations during a permanent wave treatment prevents the reversion of the hair to its previous state, for at least one week, preferably at least three months, more preferably at least one year, most preferably greater than one year, after one or more than one application of the formulation. Application of the active agent formulation to skin or nails can help repair damaged disulfide bonds due to natural wear and tear or natural aging.

Claims

1. A method for bleaching hair comprising:

(a) combining developer with maleic acid or salts thereof and bleach powder to form a bleaching mixture having an alkaline pH and a concentration of the maleic acid or salts thereof in the range from 0.1 wt % to 5 wt % of the bleaching mixture; and

(b) applying the bleaching mixture to the hair.

2. The method of claim 1, wherein the maleic acid or salts thereof in step (a) is in an amount ranging from 0.1 wt % to 3 wt % of the bleaching mixture.

3. The method of claim 1, wherein the bleach powder comprises potassium persulfate and ammonium persulfate.

4. The method of claim 1, further comprising:

(c) rinsing or shampooing the hair, or a combination thereof, wherein step (c) occurs subsequent to step (b).

5. The method of claim 1, wherein following step (b), the hair is lighter compared to the hair prior to step (b).

6. The method of claim 1, wherein the bleaching mixture does not comprise an oxidative dye precursor.