How Does Sunless Tanning Work?

Almost all sunless tanning products contain an ingredient called DHA.  This is what causes you to look tan!  DHA is made from plant sugars, and causes a reaction similar to when you peel an apple and it turns brown from the air.

DHA will only effect the outer dead layer of your skin.  This is why a spray tan lasts 7-10 days!  It comes off naturally as your skin sloughs off.  Sunless tanning products containing DHA last longer, and give more natural looking color results.  It's also totally safe for cosmetic use!