FIELD: pharmacology.
SUBSTANCE: invention is a photoprotective composition consisting of only 3 or 4 solar filters comprising: one or two UV-A filters to achieve a critical wavelength of >370 nm selected from the following: 5,6,5',6'-tetraphenyl-3,3'-(1,4-phenylene)-bis[1,2,4]triazine, 1,1'-(1,4-piperazinediyl)bis[1-[2-[4-(diethylamino)-2-hydroxybenzoyl]-phenyl]-methanone, butyl methoxydibenzoylmethane (BMDBM) in an amount of less than 2 wt %, based on the total weight of mentioned composition, hexyl-2-[4-(diethylamino)-2-hydroxybenzoyl] benzoate; Subject to the mandatory presence of 5,6,5',6'-tetraphenyl-3,3'-(1,4-phenylene)-bis[1,2,4]triazine. Also included in the composition are 2,4-bis[4-(2-ethylhexyloxy)-2-hydroxyphenyl]-6-(4-methoxyphenyl)-1,3,5-triazine (BEMT), one or two filters selected among UV-B filters, provided that the solar filters do not include octocrylene, para-aminobenzoic acid (PABA) and ethylhexyl methoxy cinnamate.
EFFECT: invention can significantly increase the sunscreen factor SPF, photostability, stability in relation to light, air, moisture and temperature of the composition.
22 cl, 7 tbl, 4 ex
