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An ester of citric acid and butanol, used in cosmetics primarily as a plasticizer in nail polishes and as a solvent or film former.
Beneficial for
Safety summary
Generally considered safe for cosmetic use, though some environmental concerns exist regarding its persistence.
CAS Number
77-94-1
For informational purposes only. This is not medical advice. Always patch test new products and consult a dermatologist for skin concerns.