UV Light Absorbers
In cosmetics and personal care products, Benzophenone-1 and Benzophenone-3 are used mostly in the formulation of nail polishes and enamels. These Benzophenone ingredients are also used in bath products, makeup products, hair products, sunscreens and skin care products. The Food and Drug Administration (FDA) has approved the use of Benzophenone-3 and Benzophenone-4 as safe and effective, over-the-counter (OTC) sunscreen ingredients. When used as a sunscreen ingredient in the United States, Benzophenone-3 is called Oxybenzone, and may be used at concentrations up to 6%, and Benzophenone-4 is called Sulisobenzone, and may be used at concentrations up to 10%. Benzophenone ingredients absorb and dissipate UV radiation, which serves to protect cosmetics and personal care products. As part of sunscreen products, which are OTC drugs in the United States, Benzophenone-3 (Oxybenzone) and Benzophenone-4 (Sulisobenzone) protect the skin from the harmful effects of the sun. Exposing unprotected skin to UV light (primarily in the UV-B range) can result in sunburn and can promote premature aging of the skin and skin cancer.