Benzophenone-3, or oxybenzone, primarily functions as a photostabilizer and sunscreen. Among the vast selection of sunscreen active ingredients, Benzophenone-3 is classified as a "chemical" sunscreen agent. Inadequate when used alone, benzophenone-3 absorbs UVB and short UVA rays but is a relatively weak chemical UV absorber. By absorbing UV rays, it also helps preserve the integrity of other cosmetic ingredients, preventing their deterioration under the sun. For this reason, benzophenone-3 is most often used in conjunction with other sunscreen agents. Besides sunscreen, it can be found in a variety of personal care products such as nail polish, lotions, and lipstick.