... Dihydroxyacetone Dihydroxyacetone (DHA) - the ingredient for self tanning, has been used successfully for about 40 years ... now. It's unique self tanning power,skin substantivity and remarkable safety makes DHA ... the most important active substance for tanning without the sun.CAS No. 96-26 ... (50 g/l, H2O, 20 °C)UseSelf Tanning Agent, cosmetic raw materialsCertificate of Analysis(Report date ...