“Non-toxic nail polish generally means that the formulation does not contain these three ingredients: toluene, dibutyl phthalate (DBP) or formaldehyde. This is also listed as ‘3 Free’ on the ...

Formaldehyde, commonly found in hair straightening treatments, nail polish, and some shampoos ... over time from preservatives in products containing DMDM hydantoin, quaternium-15, and urea ...