
UV filters are essential ingredients in sunscreens and UV-protective cosmetics, designed to shield skin from harmful UVA and UVB rays. They fall into two main categories: chemical filters (like avobenzone or octinoxate), which absorb and neutralize UV radiation, and mineral filters (such as zinc oxide or titanium dioxide), which physically block rays by sitting on the skin’s surface. Choosing the right UV filter ensures both effective sun defense and skin compatibility.
Avobenzone
Avobenzone (chemical name: Butyl Methoxydibenzoylmethane) is an oil-soluble organic compound widely used as a UVA filter in sunscreen formulations. It is valued for its ability to absorb a broad spectrum of ultraviolet A (UVA) rays (320–400 nm), protecting the skin from premature aging and damage caused by sun exposure. Avobenzone is often combined with other UV filters to provide broad-spectrum sun protection. It is a pale yellow liquid or crystalline powder, soluble in oils and alcohols but unstable in sunlight unless stabilized with other agents.