Happi Staff02.03.20
US Patent No. 10,485,745 B2 (Anil Shah, Susan Halpern Chirch); L’Oréal, Paris, has patented a photostable UVA/UVB sunscreen composition comprising a diethylhexyl syringylidenemalonate photostabilizer; a styrene/acrylates copolymer composition SPF booster; and at least a UV-filter system consisting of avobenzone, octisalate, octocrylene and homosalate; wherein the weight ratio of the styrene/acrylates copolymer composition SPF booster to the diethylhexyl syringylidenemalonate photostabilizer is 3:2 to 4:1.