Methoxybenzenesulfonic acid Parsol is a chemical compound used in sunscreens and other personal care products as a UV filter. It is commonly referred to as Parsol and is also known by its chemical name, methoxybenzene-3-sulfonic acid. Methoxybenzenesulfonic acid Parsol works by absorbing and dissipating ultraviolet (UV) radiation from the sun, helping to protect the skin from sunburn and UV-induced damage. It is often included in sunscreen formulations to provide broad-spectrum protection against both UVA and UVB rays. Using sunscreen containing methoxybenzenesulfonic acid Parsol can help reduce the risk of sunburn, premature aging, and skin cancer caused by excessive sun exposure.