Phenylbenzimidazole Sulfonic Acid
Phenylbenzimidazole Sulfonic Acid is a water-soluble UV filter commonly used in UK sunscreens and lightweight moisturisers with SPF. It helps protect the skin from UVB rays, preventing sunburn and visible sun damage. Often paired with other filters, it is favoured in elegant, non-greasy formulas that feel pleasant on the skin.
How it works in skincare
In cosmetics and skincare, Phenylbenzimidazole Sulfonic Acid functions as a highly effective UVB absorber. It is readily soluble in water, allowing formulators to create light, fluid textures without the heavy or oily feel associated with some oil-soluble UV filters. It is frequently combined with other sunscreen actives to achieve broad-spectrum protection while maintaining an elegant skin feel that appeals to British consumers who prefer non-greasy daily sun protection.
Key benefits
- Provides effective UVB protection
- Helps prevent sun-induced skin damage
- Enables lightweight, non-greasy sunscreen textures
- Water-soluble for elegant formulations
- Suitable for daily wear under makeup
- Compatible with many other UV filters
Best for
normal skin, combination skin, oily skin, sensitive skin
Where it comes from
Phenylbenzimidazole Sulfonic Acid is a synthetic organic compound created through chemical synthesis rather than extracted from a plant, mineral or other natural source.