Fact-check Feature: Is there actually formaldehyde in my nail polish / hair treatment?
Formaldehyde is listed as an ingredient in a number of beauty products (in particular, nail strengtheners and Brazilian Blowout-style hair treatments), and there’s been some controversy about whether or not it’s really in these products. In particular, cosmetic chemist Doug Schoon has stated that formaldehyde in water readily reacts to form another chemical, methylene glycol. Most of the top search …