Resinmedium risk Common irritant
Tosylamide Formaldehyde Resin
INCI · Tosylamide/Formaldehyde Resin
Film-forming resin used in nail polish. Common cause of nail polish contact dermatitis, especially on the eyelids.
Why dermatologists flag it
ACDS-listed resin — leading cause of nail polish contact dermatitis
Names to look for on labels
Tosylamide Formaldehyde Resin appears under any of these names — manufacturers choose between INCI, common, and local-language terms freely.
Tosylamide/Formaldehyde ResinToluenesulfonamide Formaldehyde ResinTSFRSantolite MHP
Common product categories
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