Question: what are the harmful ingredients in mascara?
Answer: Butylparaben, Ethylparaben, and Propylparaben. Parabens are used as preservatives. ... 
Thimerosal. ... 
Synthetic Dyes. ... 
Coal Tar Dyes. ... 
Aluminum Powder. ... 
Retinyl Acetate (Vitamin A Acetate) ... 
Formaldehyde. ... 
Imidazolidinyl Urea.