Denatonium Benzoate

Denatonium benzoate is a synthetic quaternary ammonium salt known for extreme bitterness. Used at trace levels as a cosmetic denaturant, it adds a strong bitter taste that deters accidental ingestion and discourages misuse.
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Ingredient Snapshot

Overview
An intensely bitter additive meant to discourage swallowing.
Category
Fragrance
Type
Fragrance

Ingredient Ratings

Overall Rating

Fair

Comedogenic Risk

None

Skin Benefits

Provides an immediate taste cue that reduces the likelihood of swallowing. Offers formulation utility only and no topical skincare benefit.

Uses In Skincare & Cosmetics

Often included in hand sanitizers, hair sprays, nail-biting deterrent coatings, and household aerosols to impart a bitter taste.

Comedogenic Rating

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

Safety

Generally considered safe at very low cosmetic levels. Contact with eyes, mouth, or abraded skin can cause stinging and a lingering bitter taste. Avoid use near lips and eyes, especially for children or very sensitive users.

Is Denatonium Benzoate a Good Ingredient?

Rated Fair: effective as a bitterant and denaturant but offers no direct skincare value; may cause sensory irritation on mucous membranes or broken skin.