Cream with tretionic acid gives reaction to the skin of patient tretinoin acid 15mg alcohol + ether 10% 3.6 g Buthylhydroxytolua 12mg Creme Cetomacrogol ad

Many causes can lie at the base of this skin reaction: hypersensitivity, perhaps the ether? Therefore, I would use ethanol, in which to be dissolved: Retino ï nelic acid and BHT. This solution is under good mixing slowly poured out on 3g lactose powder. We let the alcohol evaporate completely under regular stirring with the pestle. This powder mixture is then S.A. mixed with the CETOMACROGOLCR è me.