We are offering here the Benzophenone-4 that is within a group of aromatic ketones that contain both UVB and UVA absorbing properties that filter block out harmful UV rays. They are often used in sunscreens but can be found in lip balms, perfumes, nail polishes, hair sprays, dyes, and even shampoos. It has low levels of estrogenic activity in studies of cells, but this activity did not lead to changes in body weight and length in fish. Benzophenone-4 is photostabilizer and sunscreen agent used for its ability to absorb UV rays. It helps prevent the integrity of other cosmetic ingredients from deteriorating under the sun.