Tanning booths do not prepare the skin for sun exposure. Tanning beds emit UVA and UVB ultraviolet radiation to activate the production of melanin and make the skin tan.

This makes them much more harmful than the sun's rays and increases the risk of skin cancer. The World Health Organization classifies tanning beds in Group 1 as "carcinogenic to humans", the highest position, as they increase the incidence of skin Cancer. "It even equates them with the carcinogenic power of tobacco," adds the vocalist of Melanoma Spain.