| abstract |
The present invention relates to a medicament or a cosmetic composition comprising at least one thiourea of general formula I, or at least one of its monoxide or dioxide derivatives of general formulas (IIa), (IIb) and (III), or mixtures thereof; Advantageously, this medicine is used to inhibit tyrosinase, inhibit the synthesis of melamine, clarify or depigment the epidermis or eliminate age spots and as an anti-mutagenic and anti-carcinogenic agent. |