Formula 1. Anhydrous sunscreen formulations (SPF 25)

Ingredient a (% w/w) b (% w/w)
Ethanol 61.0 41.0
VA/Butyl Maleate/Isobornyl Acrylate Copolymer 2.0 2.0
Avobenzone 3.0 3.0
Oxybenzone 6.0 6.0
Homosalate 15.0 15.0
Octisalate 5.0 5.0
Octocrylene 8.0 8.0
Diisopropyl Adipate  — 10.0
Phenethyl Benzoate 10.0