The present invention relates to the use of steviol and/or isosteviol, or a salt, ester, a diester, or an ether thereof as depicted in formula (I), formula (I): R1 wherein R1 is hydrogen (H) or a saturated, straight or branched C1-C8 alkyl group non substituted or substituted with up to 3 hydroxyl-, alkoxy-, amino-, alkylamino- or dialkylamino-groups, R2 is independently a saturated, straight or branched C1-C8 alkyl group, -O-C1-C8 alkyl group, -OH group, a -O-C(O)-C1-C8 alkyl, or, -COO(C1-C8 alkyl) group, R3 is independently CH2, O, or CH-(C1-C7 alkyl), wherein the enhancement of the appearance of hair is selected from the group consisting of: restoring hair color and delaying the onset of greyness in hair, lessening hair loss, restoring hair growth after the onset of baldness has occurred, increasing the thickness of hair, counteracting age-associated hair thinning, preventing premature hair loss, or delaying the onset or severity of age-associated hair loss and thinning, maintaining of the natural hair colour, increasing hair shininess, glossiness or volume. In particular, the compound is applied topically.
