What Does SPF Mean?
A sun block with SPF of 30 will protect me from the sun for 30 minutes: Fact or Myth?
Rachel Woods, RN, Nurse for the Surgical Dermatology Program at Penn Medicine responds:
SPF increases the time you have in the sun before your skin begins to turn red...about 20 minutes for a fair skin individual. So SPF 30 for that fair skin individual would increase that time by 30. You still need to reapply every 2 hours or sooner.
This question and answer was part of the OncoLink Brown Bag Chat Series. View the entire Sun Safety Webchat transcript.
OncoLink is designed for educational purposes only and is not engaged in rendering medical advice or professional services. The information provided through OncoLink should not be used for diagnosing or treating a health problem or a disease. It is not a substitute for professional care. If you have or suspect you may have a health problem or have questions or concerns about the medication that you have been prescribed, you should consult your health care provider.
Information Provided By: www.oncolink.org | © 2016 Trustees of The University of Pennsylvania