Personal care compositions

• US 20070134173A1
• Filed: 12/09/2005
• Published: 06/14/2007
• Est. Priority Date: 12/09/2005
• Status: Abandoned Application

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Tanaka, Shuhei, Mori, Kiyoaki
• Application Number:
  US11/298,005
• Publication Number:
  US 20070134173A1
• Time in Patent Office: Days
• US Class Current: 424/59
• CPC Class Codes: A61K 2800/52 Stabilizers
• CPC Class Codes: A61K 2800/522 Antioxidants; Radical scavengers
• CPC Class Codes: A61K 8/29 Titanium; Compounds thereof
• CPC Class Codes: A61K 8/31 Hydrocarbons
• CPC Class Codes: A61K 8/37 Esters of carboxylic acids
• CPC Class Codes: A61K 8/675 Vitamin B3 or vitamin B3 active, e.g. nicotinamide, nicotinic acid, nicotinyl aldehyde tocopheryl nicotinate A61K8/678
• CPC Class Codes: A61K 8/676 Ascorbic acid, i.e. vitamin C
• CPC Class Codes: A61Q 9/02 Shaving preparations

Abstract

Methods for stabilizing color of a personal care composition containing a skin care active that is unstable in oxidizing medium are provided. In one of the preferred embodiments, the method includes the step of incorporating into the composition a color stabilizing system including a carotenoid and an ultraviolet light absorbing agent. Color stable personal care compositions are also provided.

Claims

1. A personal care composition, comprising:

a) an active that is unstable in oxidizing medium;

b) a color stabilizing system comprising a carotenoid, an anti-oxidant, and a UVB absorbing agent; and

c) a dermatologically acceptable carrier.

2. The personal care composition of claim 1, wherein the active comprises vitamin C and/or a derivative thereof.

3. The personal care composition of claim 1, further comprising vitamin B₃ and/or a derivative thereof.

4. The personal care composition of claim 1, wherein the color stabilizing system further comprises an inorganic pigment.

5. The personal care composition of claim 1, wherein the carotenoid comprises beta-carotene.

6. The personal care composition of claim 1, wherein the anti-oxidant comprises sodium metabisulfite.

7. The personal care composition of claim 1, wherein the UVB absorbing agent comprises octyl methoxycinnamate.

8. A personal care composition, comprising:

a) an active that is unstable in oxidizing medium;

b) a color stabilizing system comprising a carotenoid and an ultraviolet light absorbing agent; and

c) a dermatologically acceptable carrier.

9. The personal care composition of claim 8, wherein the active comprises vitamin C and/or a derivative thereof.

10. The personal care composition of claim 9, wherein the vitamin C and/or derivative thereof is ascorbyl glucoside.

11. The personal care composition of claim 8, wherein the carotenoid comprises beta-carotene.

12. The personal care composition of claim 8, wherein the ultraviolet light absorbing agent comprises octyl methoxycinnamate.

13. The personal care composition of claim 8, wherein the color stabilizing system further comprises an anti-oxidant.

14. The personal care composition of claim 13, wherein the anti-oxidant comprises sodium metabisulfite.

15. The personal care composition of claim 8, wherein the color stabilizing system further comprises an inorganic pigment.

16. The personal care composition of claim 15, wherein the inorganic pigment comprises titanium dioxide.

17. The personal care composition of claim 15, wherein the inorganic pigment has a particle size of less than about 1.0 micron.

18. The personal care composition of claim 15, wherein the inorganic pigment is coated with a material selected from the group consisting of a silicone, aluminum stearate, and combinations thereof.

19. The personal care composition of claim 8, further comprising vitamin B₃ and/or a derivative thereof.

20. The personal care composition of claim 19, wherein the vitamin B₃ and/or derivative thereof comprises niacinamide.

21. The personal care composition of claim 8, wherein the composition is a water-in-silicone emulsion system.

22. The personal care composition of claim 8, wherein the composition comprises water in an amount of less than about 30% by weight of the composition.

23. A method for stabilizing color of a personal care composition containing an active that is unstable in oxidizing medium, comprising the step of:

incorporating into the composition a color stabilizing system comprising a carotenoid and an ultraviolet light absorbing agent.

24. The method of claim 23, wherein the color stabilizing system further comprises an inorganic pigment.

25. The method of claim 23, wherein the color stabilizing system further comprises an anti-oxidant.

26. A method for stabilizing color of a personal care composition comprising vitamin C and/or a derivative thereof, comprising the step of:

incorporating into the composition a color stabilizing system comprising a carotenoid;

a UVB absorbing agent; and

an anti-oxidant.

27. The method of claim 26, wherein the vitamin C and/or a derivative thereof comprises ascorbyl glucoside.

28. The method of claim 26, wherein the catotenoid comprises beta-carotene.

29. The method of claim 26, wherein the UVB absorbing agent comprises octyl methoxycinnamate.

30. The method of claim 26, wherein the color stabilizing system further comprises an inorganic pigment.

31. A method for stabilizing color of a personal care composition that turns yellow when exposed to oxidizing medium, comprising the step of:

incorporating into the personal care composition a natural yellow, orange, red, and/or brown pigment; and

incorporating into the personal care composition two or more materials that inhibit oxidation selected from the group comprising anti-oxidants, inorganic pigments, and ultraviolet light absorbing agents.