Octinoxate, also known as octyl methoxycinnamate, is a chemical compound commonly used in sunscreens and other personal care products as a UV filter. It works by absorbing UVB rays from the sun, helping to protect the skin from sunburn and UV-induced damage. Octinoxate is often included in sunscreen formulations to provide broad-spectrum protection against both UVA and UVB rays. Using sunscreen containing octinoxate can help reduce the risk of sunburn, premature aging, and skin cancer caused by excessive sun exposure.