Should I use a chemical or a physical sunscreen while on Accutane?

Thank you for your question. I highly recommend to use a physical block daily, while on Accutane it is highly recommended to do so as the risk of a sunburn is much higher. You can find physical blocks that contain Zinc Oxide + Titanium Dioxide, these are can be available at most Dermatology offices and some spas. You could also use a chemical block which can be most commonly found at stores and pharmacies, these are your regular brands on the market. Make sure when selecting a chemical block that it states it protects against both UVA + UVB rays. Even after your course of Accutane is complete I encourage you to continue the use of sunscreens to help protect your skin from sun damage.
I hope this helps.
Regards,
Sheetal Sapra, MD, FRCPC