Patent ID: 8431112

Claim:
A method of reducing photodegradation of cholecalciferol when exposed to UV radiation in a sunscreen or dermatological composition containing said cholecalciferol compound comprising combining with said cholecalciferol compound in an amount of about 0.01% to about 5% by weight and of formula (I) in an amount of about 0.1% to about 20% by weight, based on the total weight of the composition, to quench excited state energy from the cholecalciferol and transfer the excited state energy from the cholecalciferol compound to the compound of formula (I), wherein one of R 1 and R 2 is a straight or branched chain C 1 -C 30 alkoxy radical, and the non-alkoxy R 1 or R 2 is hydrogen; and R 3 is a straight or branched chain C 1 -C 30 alkyl radical.