Daily application of a sunscreen is essential not only to avoid skin cancer, but also to prevent unwanted signs of aging such as wrinkles, and sun spots from occurring, according to Dr. Nassif.
So keep your skin protected by using a sunscreen with at least an SPF of 15 or higher for daily use and SPF 30 or higher when you are out in the sun for longer periods. Always reapply your sunscreen every hour and a half even if it is waterproof.
Another tip, check your labels to make sure it has one of these ingredients listed as active to ensure adequate protection from both UVB and UVA rays: avobenzone (also known as Parsol 1789 or butyl methoxydibenzoylmethane), titanium dioxide, zinc oxide, Mexoryl SX, or Helioplex.