Question: which sunscreen ingredients are harmful?
Answer: Benzophenone-3, also know as Oxybenzone. ...  Avobenzone, also a benzophenone. ...  Cylcopentasiloxane / Cyclomethicone. ...  Formaldehyde, Diazolidinyl urea, Quaternium-15, DMDM Hydantoin and Hydroxymethylglycinate. ...  Homosalate. ...  Methylisothiazolinone. ...  Microbeads. ...  Nano particles.