Ensulizole

Also known as: PBSA, Phenylbenzimidazole Sulfonic Acid

INCI name: Phenylbenzimidazole Sulfonic Acid

What it does

Water-soluble UVB filter.

Benefits

Lightweight UVB absorber, water-soluble so suits gel and watery textures. Often used to push SPF numbers up cost-effectively.

Concerns & Risks

UVB only — provides little to no UVA protection. Always paired with UVA filters in a balanced formula. Some report mild irritation.

Comedogenic rating

0/5

Non-comedogenic (0)

Suitable for

Oily skin, gel-texture sunscreens

Typical concentration

Up to 4% (US); up to 8% (EU)

Products containing Ensulizole

4 products in our database