Photostabilization of octyl triazone

1. A method for stabilizing octyl triazone in a composition from degradation due to exposure to UV radiation, the method comprising the step of incorporating into the composition an amount of diethylhexyl syringylidene malonate effective to photostabilize octyl triazone.

2. The method of claim 1 wherein the photostabilization effective amount of diethylhexyl syringylidene malonate is from about 0.5% to about 5% by weight.

3. The method of claim 1 wherein the photostabilization effective amount of diethylhexyl syringylidene malonate is from about 1.5% to about 3% by weight.

4. The method of claim 1 wherein the photostabilization effective amount of diethylhexyl syringylidene malonate is about 2% by weight.

5. The method of claim 1 wherein the photostabilization effective amount of diethylhexyl syringylidene malonate is about 4% by weight.

6. The method of claim 1 wherein the composition comprises from about 0.5% to about 5% octyl triazone by weight.

7. The method of claim 1 wherein the composition comprises from about 1% to about 2% octyl triazone by weight.

8. The method of claim 1 wherein the composition comprises about 1% octyl triazone by weight.

9. A method for enhancing the UV radiation protective effect of a composition comprising octyl triazone, the method comprising incorporating into the composition an amount of diethylhexyl syringylidene malonate effective to photostabilize octyl triazone, thereby enhancing UV radiation protection of the composition.

10. The method of claim 9 wherein the photostabilization effective amount of diethylhexyl syringylidene malonate is from about 0.5% to about 5% by weight.

11. The method of claim 9 wherein the photostabilization effective amount of diethylhexyl syringylidene malonate is from about 1.5% to about 3% by weight.

12. The method of claim 9 wherein the photostabilization effective amount of diethylhexyl syringylidene malonate is about 2% by weight.

13. The method of claim 9 wherein the photostabilization effective amount of diethylhexyl syringylidene malonate is about 4% by weight.

14. The method of claim 9 wherein the composition comprises from about 0.5% to about 5% octyl triazone by weight.

15. The method of claim 9 wherein the composition comprises from about 1% to about 2% octyl triazone by weight.

16. The method of claim 9 wherein the composition comprises about 1% octyl triazone by weight.

17. A composition comprising one or more sunscreen active agents wherein at least one sunscreen active agent is octyl triazone, the composition further comprising an amount of diethylhexyl syringylidene malonate effective to photostabilize octyl triazone.

18. The composition of claim 17 wherein the photostabilization effective amount of diethylhexyl syringylidene malonate is from about 0.5% to about 5% by weight.

19. The composition of claim 17 wherein the photostabilization effective amount of diethylhexyl syringylidene malonate is from about 1.5% to about 3% by weight.

20. The composition of claim 17 wherein the photostabilization effective amount of diethylhexyl syringylidene malonate is about 2% by weight.

21. The composition of claim 17 wherein the photostabilization effective amount of diethylhexyl syringylidene malonate is about 4% by weight.

22. The composition of claim 17 wherein the composition comprises from about 0.5% to about 5% octyl triazone by weight.

23. The composition of claim 17 wherein the composition comprises from about 1% to about 2% octyl triazone by weight.

24. The composition of claim 17 wherein the composition comprises about 1% octyl triazone by weight.

25. The composition of claim 17 , wherein the composition is a sunscreen composition.

26. The composition of claim 17 wherein the composition is a self tanning composition.

27. The composition of claim 25 wherein the composition comprises one or more additional sunscreen active agents chosen from the group consisting of para-aminobenzoic acid, avobenzone, cinoxate, dioxybenzone, homosalate, menthyl anthranilate, octocrylene, octyl methoxycinnamate, octyl salicylate, oxybenzone, padimate O, phenylbenzimidazole sulfonic acid, sulisobenzone, trolamine salicylate, titanium dioxide, zinc oxide, diethanolamine methoxycinnamate, digalloy trioleate, ethyl dihydroxypropyl PABA, glyceryl aminobenzoate, lawsone with dihydroxyacetone, red petrolatum, ethylhexyl triazone, dioctyl butamido triazone, benzylidene malonate polysiloxane, terephthalylidene dicamphor sulfonic acid, disodium phenyl dibenzimidazole tetrasulfonate, diethylamino hydroxybenzoyl hexyl benzoate, bis diethylamino hydroxybenzoyl benzoate, bis benzoxazoylphenyl ethylhexylimino triazine, drometrizole trisiloxane, methylene bis-benzotriazolyl tetramethylbutylphenol, and bis-ethylhexyloxyphenol methoxyphenyltriazine, 4-methylbenzylidenecamphor, and isopentyl 4-methoxycinnamate.

28. A method for protecting a subject from damaging UV radiation which comprises applying to the subject a composition comprising one or more sunscreen active agents, wherein at least one sunscreen active agent is octyl triazone, the composition further comprising an amount of diethylhexyl syringylidene malonate effective to photostabilize octyl triazone.

29. The method of claim 28 wherein the photostabilization effective amount of diethylhexyl syringylidene malonate is from about 0.5% to about 5% by weight.

30. The method of claim 28 wherein the photostabilization effective amount of diethylhexyl syringylidene malonate is from about 1.5% to about 3% by weight.

31. The method of claim 28 wherein the photostabilization effective amount of diethylhexyl syringylidene malonate is about 2% by weight.

32. The method of claim 28 wherein the photostabilization effective amount of diethylhexyl syringylidene malonate is about 4% by weight.

33. The method of claim 28 wherein the composition comprises from about 0.5% to about 5% octyl triazone by weight.

34. The method of claim 28 wherein the composition comprises from about 1% to about 2% octyl triazone by weight.

35. The method of claim 28 wherein the composition comprises about 1% octyl triazone by weight.

36. The method of claim 28 wherein the composition comprises one or more additional sunscreen active agents chosen from the group consisting of para-aminobenzoic acid, avobenzone, cinoxate, dioxybenzone, homosalate, menthyl anthranilate, octocrylene, octyl methoxycinnamate, octyl salicylate, oxybenzone, padimate O, phenylbenzimidazole sulfonic acid, sulisobenzone, trolamine salicylate, titanium dioxide, zinc oxide, diethanolamine methoxycinnamate, digalloy trioleate, ethyl dihydroxypropyl PABA, glyceryl aminobenzoate, lawsone with dihydroxyacetone, red petrolatum, ethylhexyl triazone, dioctyl butamido triazone, benzylidene malonate polysiloxane, terephthalylidene dicamphor sulfonic acid, disodium phenyl dibenzimidazole tetrasulfonate, diethylamino hydroxybenzoyl hexyl benzoate, bis diethylamino hydroxybenzoyl benzoate, bis benzoxazoylphenyl ethylhexylimino triazine, drometrizole trisiloxane, methylene bis-benzotriazolyl tetramethylbutylphenol, and bis-ethylhexyloxyphenol methoxyphenyltriazine, 4-methylbenzylidenecamphor, and isopentyl 4-methoxycinnamate.