This is how tanning salon owners want you to think about tanning.

As written in Smart Tan Magazine:

Tanning takes place in the skin’s outer layer: the epidermis. About 5% of the cells in your epidermis are special cells called melanocytes. When exposed to UVB light, melanocytes produce pinkish colored melanin that is absorbed by other skin cells. When exposed to UVA light, the melanin darkens. This darkening is your skin’s natural way of protecting itself from sunburn. 

Smart Tan - How Your Skin Tans

The smarter way to tan:

This is image above shows you how tanning in a bed or in the sun creates a "top-down tan" that damages the upper layers of the skin, it actually shows your epidermis "cooking" from UV ray exposure.Very soon exfoliation begins as your skin dries out and you shower and shave……sending your tan down the drain and you start the whole process over again. Melanocytes are located in the lower dermis as shown in the figure above. By using Melanotan 2 you develop your tan from the lower dermis by directly stimulating the melanocytes and your skin tans from the lower dermis and spreads throughout the upper dermis. That's why using MT 2 develops a deep all-over tan so you can use high quality sunscreens to protect the upper dermis and prevent UV ray damage. By using high quality moisturizers your tan lasts for months not days.