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5 Common Sunscreen Mistakes

Applying Sunscreen Correctly Maximizes Skin Cancer Prevention

By Lisa Fayed, About.com

Updated: July 09, 2009

About.com Health's Disease and Condition content is reviewed by our Medical Review Board

We all know that regularly using sunscreen is one of the best ways to prevent skin cancer. Unfortunately, many people make mistakes when it comes to wearing sunscreen. Properly applying sunscreen and following manufacturer instructions are key to maximum protection.

Common Sunscreen Mistakes

  1. Applying sunscreen after going outdoors.
    Sunscreen needs to be applied 15 to 30 minutes before going outside to give it time to be absorbed into the skin. Follow manufacturer's instructions for absorption time.

  2. Not applying enough sunscreen.
    The application estimate is about 1 ounce for an adult. Keep in mind that all body parts that will be exposed to the sun need to be protected. Commonly neglected areas include the face, ears, neck and feet.

  3. Not reapplying after swimming.
    Sunscreen not labeled "waterproof" or "water resistant" does come off while in the water. Even waterproof and water-resistant sunscreen provide a limited time amount of protection. Check the label for how often to reapply it.

  4. Not reapplying sunscreen at all.
    Many people have the misconception that one application of sunscreen will provide all-day protection. Not true. Sunscreen needs to be reapplied generally every two hours or after exercise or water activity. Check the label for specific instructions.

  5. Using sunscreen only when it is sunny.
    Sunscreen needs to be used in the sun and in the shade. Harmful UV rays can still affect people when it's cloudy.

    Source:

    "Skin Cancer Prevention". What You Need to Know About Skin Cancer. National Cancer Institute. 01 Aug 2005. Accessed 25 June 2008.
    http://cancer.about.com/gi/dynamic/offsite.htm?zi=1/XJ&sdn=cancer&cdn=health&tm=37&f=21&su=p284.9.336.ip_p736.8.336.ip_&tt=2&bt=0&bts=1&zu=http%3A//www.cancer.gov/cancertopics/wyntk/skin/page6

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