Ingredient

Phenylbenzimidazole Sulfonic Acid

Mid risk

FunctionUVB Filter

What it is — Phenylbenzimidazole Sulfonic Acid (INCI of the same name) is a water-soluble organic sunscreen filter.

What it does — It absorbs UVB light, contributing to a formula's protection against ultraviolet exposure, and is valued for giving a light, water-like feel.

Typical use — Found in sunscreens and daytime SPF moisturizers, usually alongside other UV filters for broader coverage.

Who it suits / good to know — Suits those who want lightweight daytime protection; because it mainly covers UVB, it is typically paired with UVA filters. Overall protection depends on the finished product's SPF and even application.

Safety — DHALIORA grades it mid risk in its EWG-style, ingredient-by-ingredient review. This reflects the ingredient in general and is not medical advice; patch-test if your skin is easily irritated and follow the finished product's directions.

Cross-reference

Found in these DHALIORA products

Found in 1 DHALIORA product

Day&Blue UV Sun Mist SPF50+ Day&Blue UV Sun Mist SPF50+Screening 8.9
How grades are set — Risk reflects our own reading of publicly available safety data, an EWG-style reading shown at the worst-case grade we've assigned this ingredient across products. It isn't a third party's proprietary score, and it isn't medical advice. Always read the packaging and patch-test where indicated.
← Back to the ingredient glossary