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Is Tosylamide/Formaldehyde Resin vegan?

Tosylamide/Formaldehyde Resin

Vegan Vegan
Vegetarian Vegetarian

Tosylamide/Formaldehyde Resin is a synthetic polymeric resin formed from p-toluenesulfonamide and formaldehyde, used as a plasticizer and film-forming agent in nail polishes. Its use has declined due to associations with allergic contact dermatitis.

Also known as TSFR
INCI name Tosylamide/Formaldehyde Resin
CAS number 25035-71-6
CosIng ID 80289
Last reviewed 9 July 2026

An ingredient is considered vegan if it contains no animal-derived components at any point in its production.

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