Ingredient Directory
Low ConcernVegan

Phenylbenzimidazole Sulfonic Acid

Ensulizole

Safety Notes

Water-soluble UVB filter, allows lighter textures; compatible with water-based formulas

Function & Common Use

Function

UV Filter (UVB)

Category

UV Filter

Common In

Sunscreens

Origin

Synthetic

Concentration Limits

India (CDSCO)

No formal limit

EU Cosmetics Reg.

8% max EU; 4% max US

Baby restriction: Avoid in baby sunscreens

Frequently Asked Questions

Is Phenylbenzimidazole Sulfonic Acid safe to use in skincare?

Phenylbenzimidazole Sulfonic Acid has a Low concern rating from The Clean Sheet. Water-soluble UVB filter, allows lighter textures; compatible with water-based formulas

Is Phenylbenzimidazole Sulfonic Acid allowed in India?

Phenylbenzimidazole Sulfonic Acid is currently classified as "Permitted" under Indian cosmetics regulations. The maximum permitted concentration is No formal limit.

What is Phenylbenzimidazole Sulfonic Acid used for in cosmetics?

Phenylbenzimidazole Sulfonic Acid functions as: UV Filter (UVB). It is commonly found in: Sunscreens.

Is Phenylbenzimidazole Sulfonic Acid safe for babies?

Phenylbenzimidazole Sulfonic Acid has baby/child restrictions: Avoid in baby sunscreens. Avoid using products containing this ingredient on infants unless specifically formulated and labelled for baby use.

TCS Assessment
Low Concern
Based on peer-reviewed safety data, regulatory status, and expert review by The Clean Sheet panel.

Regulatory Status

India (CDSCO)
Permitted
EU
Permitted
US FDA
Permitted (OTC max 4%)
Korea (MFDS)
Permitted

EU Annex: EU Annex VI

Identifiers

CAS27503-81-7
EC248-502-0

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