Benzophenone-4

Benzophenone-4, or sulisobenzone, is a water-soluble organic UV filter used in sunscreens and multiple cosmetic formats. It absorbs UV light to support photostability and coverage, but may increase photosensitivity in some users.
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Ingredient Snapshot

Overview
A water-soluble sunscreen filter that helps block UV rays.
Category
Sun Protection
Type
UV Filter

Ingredient Ratings

Overall Rating

Fair

Comedogenic Risk

None

Skin Benefits

Contributes UV filtering that helps guard against sunburn and visible color change from sun exposure; performance can depend on concentration and pairing with other filters.

Uses In Skincare & Cosmetics

Used in water-based sunscreens and gels, and also in shampoos or conditioners to support UV protection needs in formulas.

Comedogenic Rating

This ingredient is not typically evaluated for comedogenicity, and no standardized rating is available.

Safety

Photosensitizing reactions and mild irritation can occur, particularly on sensitive or compromised skin. Users with a history of sunscreen sensitivity may want to patch test or choose an alternative filter.

Is Benzophenone-4 a Good Ingredient?

It provides UV filtering in water-based systems, but it carries photosensitizing and irritation potential and often needs to be paired with other filters to get adequate coverage, which together hold it to a Fair rating.