Tanning methods refer to the various techniques used to darken the skin, primarily for cosmetic purposes. The most common methods include sun exposure, where ultraviolet (UV) rays stimulate melanin production, and artificial tanning, which involves the use of tanning beds that emit UV light. Another popular option is self-tanning products, such as lotions and sprays, which contain dihydroxyacetone (DHA) that reacts with the skin's surface to create a temporary tan. Each method has its benefits and risks, including potential skin damage from excessive UV exposure and the need for regular application with self-tanners.