The invention concerns the use of compounds of general formula (I): (I) wherein: R1 and R2 form together a double bond, or R1 and R2 form together a cyclopropyl group； R3, R4 are the same or different and independently chosen from hydrogen, methyl, or R3 and R4 form together a double bond； R5, R6 are the same or different and independently chosen from hydrogen, methyl； or R5 and R6 form together a double bond, or R5 and R6 form together a cyclopropyl group； R7=methyl, or ethyl； R8=hydrogen, or methyl, for promoting hair growth and/or inhibiting or delaying hair loss in the human scalp, and cosmetic and pharmaceutical compositions suitable for such use.
