Used primarily as a UV absorber in cosmetic formulations and sunscreens due to its strong absorption in the ultraviolet range, especially UVA and UVB. It stabilizes products against photodegradation and enhances the photostability of other sunscreen agents. Commonly found in skin care and hair care products where long-term exposure to sunlight is expected. Also applied in plastics and coatings to prevent UV-induced yellowing and material degradation.