Nearly all self-tanners contain dihydroxyacetone (DHA) as the active
ingredient. According to the American Academy of Dermatology, DHA is the
safest, most effective ingredient in sunless tanning. DHA is an
absolutely safe and user-friendly product and has been in the industrial
use for cosmetic manufacturing for more than three decades. As a
colorless chemical derived from glycerin, it interacts with amino acids
in dead skin cells to produce a brown color change. The resulting color
change usually lasts anywhere from seven to ten days, depending upon
individual skin chemistry. The nozzle of the airbrush sprays just about
the right proportion of air and lotion giving your skin an even tan.
Besides DHA, other ingredients are used in airbrush tanning
formulations. These ingredients are very skin friendly. They do not just
give you a tan, but also nourish and rejuvenate your skin.