Question: what are the bad ingredients in cosmetics?
Answer: Parabens. Parabens are an inexpensive and common type of preservative used in many different skincare products to keep the product fresh. ... 
Formaldehyde. ... 
Sodium lauryl sulphate/ sodium lauryl sulfate (SLS) ... 
Petrolatum. ... 
Coal tar. ... 
Hydroquinone. ... 
Triclosan. ... 
Oxybenzone.