Composition and association of sunscreens for photostabilizing butyl methoxydibenzoylmethane (BMDBM)

The present invention concerns a composition containing a photostabilized combination of Butyl Methoxydibenzoylmethane (BMDBM), Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine (BEMT), and Methylene Bis-Benzotriazolyl Tetramethylbutylphenol (MBBT) wherein: (i)-the BEMT/BMDBM mass ratio is greater than or equal to 1 and preferably greater than or equal to 1.5; (ii)-the content of BMDBM is comprised between 1% and 5% by weight with regard to the total weight of the composition; (iii)-the quantity of MBBT is comprised between 3% and 7% by weight with regard to the total weight of the composition, said combination containing no octocrylene, PABA or ethylhexyl methoxycinnamate, and a pharmaceutically or cosmetically acceptable excipient.