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INCI: DENATONIUM BENZOATE
The bitterest known chemical compound, used as a denaturant in alcohol-containing cosmetic products to prevent accidental ingestion and as a nail-biting deterrent.
May aggravate
Safety summary
Considered safe for topical use in cosmetics; extremely bitter taste prevents ingestion.
CAS Number
3734-33-6
1% line marker
This ingredient is commonly used as a marker to identify where ingredients drop below 1% concentration on the label.
For informational purposes only. This is not medical advice. Always patch test new products and consult a dermatologist for skin concerns.