Topical composition for use especially as a skin lightener, characterized in that it contains an effective amount of at least one compound of general formula (I) or a mixture of such compounds and/or an acid addition salt thereof:in whichX is NH or a direct bond and n is 2, 3 or 4, preferably 2 or 3, and its use for lightening skin colour, for depigmenting liver spots and for evening out non-uniformities in skin colouration. The invention further relates to dermatologically effective compositions containing at least one disulfide of general formula (I) and at least one additional skin care ingredient.
