According to the American Academy of Dermatology, the most effective products available are sunless tanning or self
tanning lotions that contain dihydroxyacetone (
DHA) as the active ingredient. The tan
is not a dye, stain or paint, but a chemical reaction between the DHA and the amino acids in the dead layer on the skin surface.
The reaction is non-toxic and skin safe, without the potential risks associated with UV exposure. The tan is temporary and will fade gradually over 3 to 10 days.