Sunscreens are of two types: natural blocks, using zinc and titanium, which create a physical barrier against UV rays, and chemical ones which neutralize and absorb UV rays into the skin’s tissues. While chemical sunblocks are popular because they are easier to formulate into bases and cosmetics, natural sunscreens are generally less toxic, less irritating and cause fewer allergies.

Pure + Simple makes a SPF 30 physical block sunscreen right here in Canada which shields the skin from UV rays. It doesn't have to be reapplied every 2 hours, and minimizes your exposure to harmful chemicals.