The longevity of a Sunless tan depends on the skin’s natural exfoliation process, and on the skin regimen followed before and after application. On average, a sunless tan will last 4-7 days. The “life span” of a Sunless tan also depends on your skin’s natural exfoliation. The faster your skin regenerates, the faster the sunless tan will fade. The tan created by the DHA and Erythrulose affects only the top layer of the skin and will begin to fade after 4 to 5 days as the skin naturally begins to exfoliate. Remember to moisturize for the longest lasting color!