Dihydroxyacetone (DHA) - is present in plant, human and animal cells. DHA is considered a natural substance found in the human body. When DHA is put on the skin it interacts with the amino acids which create the brown color. The food and drug administration (FDA) has had DHA listed with them since 1973, which has been widely used for about 30 years. Today DHA is used in airbrush tanning.  If you have any additional questions about the benefits of please give 360 Tans a call today at 512.231.8267