Patent ID: 8529967

Claim:
A sunscreen composition for preventing or lessening sun-induced damage to human skin comprising a storage stable emulsion of (i) at least one UV-B or UV-A/UV-B sunblock active, or a combination thereof, in a conventional amount, (ii) from about 0.1 to about 10 weight percent of at least one meroterpene and (iii) dermatological acceptable carrier, wherein said meroterpene (a) is a compound having the structure: wherein R 1 , R 2 , and R 3 are each independently selected from the group consisting of H, OH, OR 6 or CH 2 R 6 where R 6 is linear or branched C 1 to C 8 alkyl; R 4 and R 5 are each independently a linear or branched, C 1 to C 20 alkyl or alkenyl group, (b) is free or substantially free of psoralens, and (c) has a purity of at least 90% w/w.