According to the online data of cosmetics finance, formaldehyde, a banned component in OPI, was detected as high as 622 1.5ppm, exceeding the standard by 82 times, and was accused of containing carcinogen nail polish.
Formaldehyde, also known as ant aldehyde. Colorless gas, with a special irritating smell, has a stimulating effect on people's eyes and nose. The main harm of formaldehyde is irritation to skin and mucosa.