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Spray Tanning Q&A
Dihydroxyacetone (or DHA for short) is the tanning ingredient in all self-tanning formulas. DHA creates a tanned appearance by developing a brown color on the surface of the skin thus creating a tanned appearance. DHA is a colorless 3-carbon sugar that when applied to the skin causes a chemical reaction with amino acids in the surface cells of the skin producing a darkening effect. DHA does not damage skin as it only affects the outermost cells of the epidermis, the outer layer of skin. The development of color takes anywhere from 6 to 8 hours and the intensity of color is dependent upon the DHA concentration in the product as well as each person's skin type. The tan typically lasts 5 to 7 days and begins to fade as the top layer of skin cells naturally sheds.
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