Patent ID: 8603443

Claim:
A photostable sunscreen composition consisting essentially of: (a) as the sole organic sunscreen that absorbs ultraviolet radiation from 310-400 nm butylmethoxydibenzoylmethane, at a concentration of from 2.7 to 3.3 wt-%, and (b) a four-component photostabilizing complex that quenches singlet-excited energy and/or triplet-excited energy of butylmethoxy-dibenzoylmethane after exposure to ultraviolet radiation, said complex consisting of (i) 2.5 to 3.1 wt-% octocrylene, (ii) 5.4 to 6.6 wt-% oxybenzone, (iii) 0.1 to 1.0 wt-% Polysilicone-15, and (iv) 0.001 to 0.5 wt-% of an extract of Haematococcus pluvialis, wherein the photostable sunscreen composition retains 85% of its UV absorbance over the range of 290 nm to 400 nm after being irradiated with 15 MEDs of energy from a simulated solar radiation source calibrated in accordance with the COLIPA standard.