A little bit of spray Tanning history….
- Dihydroxyacetone, DHA was first discovered by the Germans in the late 1920’s when DHA spilled on the skin and produced a brown colour.
- DHA has been listed with the Food and Drug Administration (FDA) since 1973, and has been used in cosmetic preparations for almost 30 years.
- DHA is not absorbed through the skin into the body and it has no known toxicity.
How Sunless Tanning Works….
- The skin is made up of two main layers: the epidermis and dermis.
- The epidermis is also made up of layers. The outermost layer of the epidermis, the stratum corneum (or horny layer), is where self tanning occurs. DHA reacts with amino acids on the skin and oxygen in the air causing skin to turn brown, giving the appearance of a tan.
- A good example of this reaction is if you take a bite out of an apple an leave it on the side for a few hours it starts to turn brown. Fake tan works in a similar way on the skin.
- Every day millions of dead skin cells are sloughed or worn away from the surface of the skin. Actually, every 35 to 45 days you have an entirely new epidermis.
- That is why the colour change produced by DHA creating the tan effect will gradually fade. A sunless tan Will usually lasts about 5-7 days, although the Sienna X retail range of pre and post tan care products is designed to help your customers keep theirs for longer.