Despite using 45 SPF sunscreen, sometimes I still get red after being in the sun. Do I need a stronger sunscreen?
How sunscreen is used is as important as is the SPF (Sun Protective Factor). First, sunscreen should be applied thirty minutes before exposure to the sun since it is not effective for the first one-half hour. Secondly, apply sunscreen generously. Thirdly, reapply every two hours or more frequently, especially if you perspire heavily or go into the water.