Cosmetic Grade Ultraviolet Absorber CAS 88122-99-0 Uvinul T150 Uvt-150 / Ethylhexyl Triazone Manufacturer Direct sales offered by  Hebei Fengjia New Material Technology Co., Ltd. Pure Ethylhexyl Triazone (ET) is a chemical compound commonly used in sunscreens and other skin care products. It is a UV filter that helps protect your skin from the harsh effects of the sun's rays. Here are some important facts to know about ET and why you should consider choosing products that contain this ingredient.