Ensulizole, also known as phenylbenzimidazole sulfonic acid, is a water-soluble sunscreen agent commonly used in cosmetic and skincare products. It’s primarily used for its UVB protection properties, helping to shield the skin from the harmful effects of sun exposure. Ensulizole is often included in sunscreens and sunblock formulations. Cosmetic Benefits of Ensulizole UVB Protection Broad-Spectrum Sun Protection Lightweight and Non-Greasy Water-Resistant