abstract |
The invention concerns a bioprecursor of formula (I), wherein A<SUB>1 </SUB>and A<SUB>2 </SUB>represent independently of each other a radical derived from a molecule capable of being used in dermatology or in cosmetology; X and Y represent independently of each other a hydrogen atom, a hydroxy group or a C<SUB>1</SUB>-C<SUB>20 </SUB>alkyl group; and n represents an integer between 0 and 10 |