Granted Patent B2

US 12,257,331 · App. 18/355,533 · Granted Mar 25, 2025

Inventors: Cho-Cho Khine (Scotch Plains, NJ); Ronak Rughani (Edison, NJ)

Assignee: L'OREAL

A61K8/362A61Q5/06A61Q5/10A61K2800/4322A61K2800/48A61K2800/5426

Abstract

Claims (104)

1. A method for protecting hair and mitigating damage to the hair from oxidative bleaching or coloring of the hair, the method comprising:

(i) applying a fortifying composition to hair to be oxidatively bleached or colored and allowing the fortifying composition to remain on the hair for a first period of time, the fortifying composition comprising:

(a) citric acid;

(b) cyclodextrin;

wherein a combined total amount of (i)(a) and (i)(b) is about 2 to about 15 wt. %;

(c) one or more polyols having from 2 to 10 carbon atoms; and

(d) water;

wherein all weight percentages of (i) are based on a total weight of the fortifying composition;

(ii) upon expiration of the first period of time, without rinsing the fortifying composition from the hair, applying an oxidative bleaching or coloring composition to the hair and oxidatively bleaching or coloring the hair;

(iii) after oxidatively bleaching or coloring the hair, cleansing the hair with a shampoo to remove the oxidative bleaching or coloring composition from the hair;

(iv) after rinsing the shampoo from the hair, applying a conditioning composition to the hair and allowing the conditioning composition to remain on the hair for a second period of time, the conditioning composition comprising;

(a) one or more cationic surfactants;

(b) one or more non-silicone based fatty compounds;

(c) one or more silicones; and

(d) water; and

(v) upon expiration of the second period of time, rinsing the conditioning composition from the hair upon expiration of the second period of time.

2. The method of claim 1 , wherein the fortifying composition has a pH of about 2 to about 6.

3. The method of claim 1 , wherein the citric acid of (i)(a) and cyclodextrin of (i)(b) are in a mole ratio of about 20:1 to about 3:1 ((a):(b)).

4. The method of claim 1 , wherein the one or more polyols having from 2 to 10 carbon atoms are selected from ethylene glycol, propylene glycol, butylene glycol, hexylene glycol, pentylene glycol, diethylene glycol, dipropylene glycol, 1,3 propanediol, glycerin, or combinations thereof.

5. The method of claim 4 , wherein at least one of the one or more polyols having from 2 to 10 carbon atoms is glycerin.

6. The method of claim 1 , wherein the fortifying composition further comprises:

(e) one or more cationic polysaccharides;

(f) one or more polar oils; and/or

(g) one or more nonionic emulsifiers.

7. The method of claim 6 comprising the one or more cationic polysaccharides, wherein at least one of the one or more cationic polysaccharides is a cationic guar.

8. The method of claim 6 comprising the one or more nonionic emulsifiers, wherein at least one of the one or more nonionic emulsifiers is an alkoxylated nonionic emulsifier.

9. The method of claim 1 , wherein the method comprises:

(i) applying a fortifying composition to hair to be oxidatively bleached or colored and allowing the fortifying composition to remain on the hair for a first period of time of about 1 to about 30 minutes, the fortifying composition comprising:

(a) about 1 to about 10 wt. % of citric acid;

(b) about 0.5 to about 10 wt. % of cyclodextrin;

wherein a combined total amount of (a) and (b) is about 2 to about 15 wt. %;

(c) about 0.1 to about 10 wt. % of one or more polyols having from 2 to 10 carbon atoms;

(d) about 60 to about 96 wt. % of water;

(e) optionally, about 0.1 to about 5 wt. % of one or more cationic polysaccharides;

(f) optionally, about 0.1 to about 8 wt. % of one or more polar oils;

(g) optionally, about 0.1 to about 8 wt. % of one or more nonionic emulsifiers; and

(h) optionally, about 0.1 to about 10 wt. % of one or more miscellaneous ingredients;

wherein all weight percentages of (i) are based on a total weight of the fortifying composition;

(ii) upon expiration of the first period of time, without rinsing the fortifying composition from the hair, applying an oxidative bleaching or coloring composition to the hair and oxidatively bleaching or coloring the hair;

(iii) after oxidatively bleaching or coloring the hair, cleansing the hair with a shampoo to remove the oxidative bleaching or coloring composition from the hair;

(iv) within about 30 minutes from rinsing the shampoo from the hair, applying a conditioning composition to the hair for a second period of time of about 1 to 30 minutes, the conditioning composition comprising;

(a) about 0.5 to about 10 wt. % of one or more cationic surfactants, based on a total weight of the conditioning composition;

(b) about 1 to about 30 wt. % of one or more fatty compounds, based on a total weight of the conditioning composition;

(c) about 0.1 to about 5 wt. % of one or more amino-functionalized silicones;

(d) 60 to about 90 wt. % of water, based on a total weight of the conditioning composition;

(e) optionally, about 0.1 to about 8 wt. % of one or more thickening agents;

(f) optionally, about 0.1 to about 8 wt. % of one or more water soluble solvents; and

(g) optionally, about 0.1 to about 10 wt. % of one or more miscellaneous ingredients;

wherein all weight percentages of (iv) are based on a total weight of the conditioning composition; and

(v) upon expiration of the second period of time, rinsing the conditioning composition from the hair.

10. The method of claim 1 , wherein the method strengthens the hair, improves curl retention of the hair, prevents frizz of the hair, and remediates damage to the hair caused by the chemical bleaching or coloring of the hair to a greater extent than A carrying out the method without the fortifying composition.

11. A method for protecting hair and mitigating damage to the hair from oxidative bleaching or coloring of the hair, the method comprising:

(i) applying an oxidative bleaching or coloring composition to the hair and oxidatively bleaching or coloring the hair followed by cleansing the hair with a shampoo to remove the oxidative bleaching or coloring composition from the hair;

(ii) after rinsing the shampoo from the hair, applying a first application of a fortifying composition to the hair, and allowing the first application of the fortifying composition to remain on the hair for a first period of time, the fortifying composition comprising:

(a) citric acid;

(b) cyclodextrin;

wherein a combined total amount of (i)(a) and (i)(b) is about 2 to about 15 wt. %;

(c) one or more polyols having from 2 to 10 carbon atoms; and

(d) water;

wherein all weight percentages of (ii) are based on a total weight of the fortifying composition;

(iii) upon expiration of the first period of time, cleansing the hair with a shampoo;

(iv) after rinsing the shampoo from the hair, applying a second application of the fortifying composition to the hair and allowing the second application of the fortifying composition to remain on the hair for a second period of time;

(v) upon expiration of the second period of time, without rinsing the second application of the fortifying composition from the hair, applying a conditioning composition to the hair and allowing the conditioning composition to remain on the hair for a third period of time, the conditioning composition comprising:

(a) one or more cationic surfactants;

(b) one or more non-silicone based fatty compounds;

(c) one or more silicones; and

(d) water; and

(vi) upon expiration of the third period of time, rinsing the fortifying composition and the conditioning composition from the hair.

12. The method of claim 11 , wherein the fortifying composition has a pH of about 2 to about 6.

13. The method of claim 11 , wherein the citric acid of (i)(a) and cyclodextrin of (i)(b) are in a mole ratio of about 20:1 to about 3:1 ((a):(b)).

14. The method of claim 11 , wherein the one or more polyols having from 2 to 10 carbon atoms are selected from ethylene glycol, propylene glycol, butylene glycol, hexylene glycol, pentylene glycol, diethylene glycol, dipropylene glycol, 1,3 propanediol, glycerin, or combinations thereof.

15. The method of claim 14 , wherein at least one of the one or more polyols having from 2 to 10 carbon atoms is glycerin.

16. The method of claim 11 , wherein the fortifying composition further comprises:

(d) optionally, one or more cationic polysaccharides;

(f) one or more polar oils; and/or

(g) one or more nonionic emulsifiers.

17. The method of claim 16 comprising the one or more cationic polysaccharides, wherein at least one of the one or more cationic polysaccharides is a cationic guar.

18. The method of claim 16 comprising the one or more nonionic emulsifiers, wherein at least one of the one or more nonionic emulsifiers is an alkoxylated nonionic emulsifier.

19. The method of claim 11 , wherein the method comprises:

(i) applying an oxidative bleaching or coloring composition to the hair and oxidatively bleaching or coloring the hair followed by cleansing the hair with a shampoo to remove the oxidative bleaching or coloring composition from the hair;

(ii) within about 30 minutes from rinsing the shampoo from the hair, applying a first application of a fortifying composition to the hair and allowing the first application of the fortifying composition to remain on the hair for a first period of time of about 1 to about 30 minutes, the fortifying composition comprising:

(a) about 1 to about 10 wt. % of citric acid;

(b) about 0.5 to about 10 wt. % of cyclodextrin;

wherein a combined total amount of (a) and (b) is about 2 to about 15 wt. %;

(c) about 0.1 to about 10 wt. % of one or more polyols having from 2 to 10 carbon atoms;

(d) about 60 to about 96 wt. % of water;

(e) optionally, about 0.1 to about 5 wt. % of one or more cationic polysaccharides;

(f) optionally, about 0.1 to about 8 wt. % of one or more polar oils;

(g) optionally, about 0.1 to about 8 wt. % of one or more nonionic emulsifiers; and

(h) optionally, about 0.1 to about 10 wt. % of one or more miscellaneous ingredients;

wherein all weight percentages of (ii) are based on a total weight of the fortifying composition;

(iii) upon expiration of the first period of time, without rinsing the fortifying composition from the hair, applying a shampoo composition to the hair and cleansing the hair;

(iv) within about 30 minutes from rinsing the shampoo composition from the hair, applying a second application of the fortifying composition to the hair and allowing the second application of the fortifying composition to remain on the hair for a second period of time of about 1 to about 30 minutes;

(v) upon expiration of the second period of time, without rinsing the second application of the fortifying composition from the hair, applying a conditioning composition to the hair and allowing the conditioning composition to remain on the hair for a third period of time of about 1 to about 30 minutes, the conditioning composition comprising:

(a) about 0.5 to about 10 wt. % of one or more cationic surfactants, based on a total weight of the conditioning composition;

(b) about 1 to about 30 wt. % of one or more fatty compounds, based on a total weight of the conditioning composition;

(c) about 0.1 to about 5 wt. % of one or more amino-functionalized silicones;

(d) 60 to about 90 wt. % of water, based on a total weight of the conditioning composition;

(e) optionally, about 0.1 to about 8 wt. % of one or more thickening agents;

(f) optionally, about 0.1 to about 8 wt. % of one or more water soluble solvents; and

(g) optionally, about 0.1 to about 10 wt. % of one or more miscellaneous ingredients;

wherein all weight percentages of (iii) are based on a total weight of the conditioning composition; and

(vi) upon expiration of the third period of time, rinsing the fortifying composition and the conditioning composition from the hair.

20. The method of claim 11 , wherein the method strengthens the hair, improves curl retention of the hair, prevents frizz of the hair, and remediates damage to the hair caused by the chemical bleaching or coloring of the hair to a greater extent than carrying out the method without the first application and/or the second application of the fortifying composition to the hair.

Assignments (1)

Continuity (1)

References Cited (60)