Disodium Phenyl Dibenzimidazole Tetrasulfonate is a water-soluble, photostable organic UVA filter. It works by absorbing UVA radiation and converting it into harmless energy, helping protect skin from UVA-induced oxidative stress and photoaging while enabling clear, lightweight sunscreen formulations.

Highly effective at absorbing UVB radiation (280–320 nm).
Water-soluble UV filter.