Bronzers, or self-tanner,tanning lotions contain ingredients that give the skin an instant natural glow with or without the use of UV lights. The additives in bronzer tanning lotions are derived from a variety of natural plant oils that turn a bronze color when they come in contact with the skin. Bronzers will enhance the appearance of a good base tan, expedite the development of a base tan and will help prolong the perfect tan. If you want an immediate, natural glow, then lotions containing bronzer are the way to go.