Question: what ingredients are bad in face masks?
Answer: Parabens. Parabens are unquestionably the most commonly used preservatives in the cosmetics industry. ... 
Phthalates. ... 
Benzoyl Peroxide. ... 
Triclosan. ... 
Resorcinol. ... 
Hydroquinone. ... 
Petroleum. ... 
Methylisothiazolinone.