How long does a typical tan from a self-tanner last?

A typical tan from a self-tanner lasts about 1-2 weeks, making this duration the most accurate response. Self-tanning products, which often contain the active ingredient DHA (dihydroxyacetone), work by reacting with the amino acids in the skin's surface layer, producing a browning effect that mimics a natural tan.

This duration is influenced by various factors, including the individual's skin type, the frequency of exfoliation, and how well the self-tanner was applied. Over time, as skin cells naturally slough off, the tan will gradually fade, which is why reapplication is often recommended every week or so to maintain the desired color.

The other time spans provided do not reflect the average experience with self-tanners. A tan lasting only 1-2 days would be too short, as the effect of the self-tanner typically extends well beyond that. Similarly, a duration of 3-4 days would not encompass the full experience of most self-tanners, as users generally notice their tan lasting longer than that. Lastly, a tan lasting a full month would be uncommon due to the natural turnover of skin cells, making it impractical for self-tanning products that primarily affect the outermost layer of skin