There’s no question, zinc oxide and titanium dioxide provide the best protection for your skin and are healthiest for the environment.
Sunscreen products that contain these ingredients are usually labeled “mineral” or “physical”. Check the active ingredient list on the back of the label, it will contain zinc or titanium (or both).
Here are a few tips for applying physical SPF:
Apply physical SPF on clean skin or over a serum only. Layering too many products can feel uncomfortable. If you need extra moisture, consider an SPF with moisturizer.
Use a nickel sized dollop of SPF to cover your entire face. The length of the top portion of your pinky finger is about the correct amount.
Apply the product to your hands, rub them together to warm the product then spread it all over your face, neck and ears. Use outward feathering strokes to blend it in. Do not dab the product on the face like concealer then attempt to blend it in.
Wait 2-3 minutes after applying. Brush your teeth. Do your hair. Some physical SPF products appear a little white initially but then it disappears.