You can't put on sunscreen in the morning and expect to be protected for a full day in the sun. To maximize sun protection, apply generous amounts of sunscreen to dry skin 15 minutes before you go outdoors. Reapply sunscreen every two hours — and immediately after swimming or heavy sweating even if you're using a product that's water resistant.
May 18, 2016
- Best sunscreen: Understand sunscreen options. http://www.mayoclinic.org/healthy-lifestyle/adult-health/in-depth/best-sunscreen/art-20045110. Accessed May 5, 2016.