| abstract |
THE INVENTION REFERS TO A DERMATOLOGICAL AND COSMETIC COMPOSITION WITH CONTROLLED RELEASE OF ASSETS CONTAINING AT LEAST ONE PHOTOCONVERTIBLE CAROTENOID SUITABLE FOR TRANSFORMATION IN RETINOL AND RETINOIC ACID OR ITS ISOMERS, FROM THE FOLLOWING FORMULA (I): , 1} YR {SUB, 2} REPRESENT ONE OF THE FOLLOWING GROUPS: REPRESENTING AT LEAST ONE OF THE SUBSTITUTES R {SUB, 1} OR {SUB, 2} A GROUP {BE} YONONA DE FORMULA (II), REPRESENTING THE SUBSTITUTES R {SUB, 3} YR {SUB, 4} HYDROGEN, A GROUP OF HYDROXY, CARBOXY, ALCOXY IN C {SUB, 1-4} OR FORMING WITH THE CARBON ATOMO OF THE CYCLE, IN A COSMETIC OR DERMATOLOGICALLY ACCEPTABLE MEDIA . |