| abstract |
PURPOSE:To obtain an external agent for skin containing 4-(1,1- dimethylenthyl)-4'-methoxydibenzoylmethane and trisodium edetate, free from the coloring and discoloration with time, having stable UV absorptivity and capable of keeping the quality of the product. CONSTITUTION:(A) The compound of formula I acting as a UV-absorber is compounded with (B) trisodium edetate of formula II (i.e. ethylenediaminetetraacetic acid trisodium salt) at a weight ratio (B/A) of 1/5,000-20, prerferably 1/1,000-10,. |