Benzophenone-3, often labeled as oxybenzone in sunscreen products, is a widely used chemical compound in cosmetics and sunscreens. Its chemical formula is C14H12O3. This organic UV filter serves as a sunblock agent, absorbing and dissipating harmful ultraviolet (UV) rays, particularly UVB and some UVA radiation. Benzophenone-3 helps protect the skin from sunburn and UV-induced damage, making it a common ingredient in sunscreens, lotions, and lip balms. Despite its effectiveness in shielding against sun damage, concerns about its potential hormone-disrupting properties have led to ongoing research and the exploration of alternative UV filters in the cosmetic industry.
What is BENZOPHENONE-3 used for?
Benzophenone-3 is a key ingredient in sunscreens and cosmetics. Its primary role is to protect the skin from the harmful effects of UV radiation. Benzophenone-3 absorbs UVB and some UVA rays, shielding the skin from sunburn and UV-induced damage. It is a popular choice in sunscreens due to its broad-spectrum UV protection capabilities. Additionally, Benzophenone-3 is used in various cosmetics like lip balms and moisturizers to provide UV protection and prevent sun damage, making it an essential component in the fight against skin aging and skin cancer caused by excessive sun exposure.
Origin
Benzophenone-3 is synthesized through esterification, where 3-benzoylbenzoic acid reacts with phenol, forming benzophenone-3 benzyl ester. Subsequent hydrolysis breaks the ester bond, yielding the benzophenone-3 molecule. Purification processes remove impurities, resulting in a white or pale yellow crystalline powder used in the cosmetic industry.
Safety profile
Benzophenone-3 has raised concerns about potential toxicity and environmental impact. While considered safe for most individuals when applied topically, some studies suggest it may have hormone-disrupting properties. It has also been found in water sources, impacting aquatic ecosystems. Consequently, some consumers and researchers advocate for alternative UV filters in sunscreen formulations.