US Patent No. 9,687,433 B2; Ecstasy LLC, Chapel Hill, NC, has patented an anhydrous cosmetic or pharmaceutical dermatological formulation for use in depigmenting skin or otherwise lightening the tone of skin. The formulation is comprised an active depigmenting agent which is deoxyarbutin; a fatty phase in which the active depigmenting agent is not soluble; and an oily phase in which the active depigmenting agent is dissolved, said oily phase consisting of ethanol and/or isopropanol. The formu...