If the goal is a tan, there are options that do not involve unregulated injections or UV damage.
DHA self-tanners and spray tans
Most sunless tanners use dihydroxyacetone (DHA), a color additive that darkens the skin by reacting with amino acids in its surface layer, according to the FDA. The color fades as skin naturally sheds, usually over several days.
The FDA allows DHA only for external application. It is not approved for use on the lips, areas covered by mucous membrane, or around the eyes.
The FDA notes the industry has not provided safety data for "misting" exposure in spray tanning booths. If you get a spray tan, protect your eyes, lips and nose, and avoid inhaling the mist.
Bronzers
Tinted moisturizers and brush-on powders give a temporary tanned look and wash off, similar to makeup.
A sunless tan is not sunscreen
Color from DHA does not protect you from UV. Keep using broad-spectrum sunscreen outdoors.