My WebMD Sign In, Sign Up

Ask Your Question

WebMD Answers

Please visit the new WebMD Message Boards to find answers and get support.

Posted: | Report This Report Question |
Q.

Why is it important to reapply sunscreen frequently?

 

Answers From Experts & Organizations (1)

17 Answers
156 Helpful Votes
14 Followers
A.

There are three reasons why sunscreens should be reapplied frequently. First, sunscreens can be physically rubbed off, such as when drying yourself with a towel. Second, sunscreens can be washed off when swimming or with heavy sweating. Third, some of the active ingredients in sunscreens start to break down over time. This break down can be accelerated by sun exposure. These three factors can prevent sunscreens from providing the level of protection indicated by the SPF value. Generously apply sunscreen 15-30 minutes before going outdoors and reapply at least every two hours, or after swimming or perspiring heavily.

This answer should not be considered medical advice...down arrowThis answer should not be considered medical advice and should not take the place of a doctor’s visit. Please see the bottom of the page for more information or visit our Terms and Conditions.up arrow

Posted:
| Report This Report Answer

Was this helpful?

YesNo

Thanks for your feedback.

7 of 11 found this helpful

Answers from Contributors (2)

4 Answers
23 Helpful Votes
A.
Skin damage from sunlight builds up with continued exposure, whether sunburn occurs or not. In addition to skin cancer and sunburn from sun exposure, other effects can include wrinkling, premature aging, and in time, an almost leathery appearance of the skin. Research also suggests that excessive exposure to UV radiation may interfere with the body's immune system. The effectiveness of using sunscreen is reduced if it is not applied in adequate amounts or it is washed off, rubbed off, sweated off, or otherwise removed. For maximum effectiveness, apply a sunscreen frequently!!!!

The opinions expressed here are solely those of the User.down arrowThe opinions expressed here are solely those of the User.
User-generated content areas are not reviewed by a WebMD physician. WebMD understands that reading individual, real-life experiences can be a helpful resource, but it is never a substitute for professional medical advice. Please see the
bottom of the page for more information or visit our Terms and Conditions.up arrow

Posted:
| Report This Report Answer

Was this helpful?

YesNo

Thanks for your feedback.

4 of 8 found this helpful
4 Answers
23 Helpful Votes
A.
Skin damage from sunlight builds up with continued exposure, whether sunburn occurs or not. In addition to skin cancer and sunburn from sun exposure, other effects can include wrinkling, premature aging, and in time, an almost leathery appearance of the skin. Research also suggests that excessive exposure to UV radiation may interfere with the body's immune system. The effectiveness of using sunscreen is reduced if it is not applied in adequate amounts or it is washed off, rubbed off, sweated off, or otherwise removed. For maximum effectiveness, apply a sunscreen frequently!!!!

The opinions expressed here are solely those of the User.down arrowThe opinions expressed here are solely those of the User.
User-generated content areas are not reviewed by a WebMD physician. WebMD understands that reading individual, real-life experiences can be a helpful resource, but it is never a substitute for professional medical advice. Please see the
bottom of the page for more information or visit our Terms and Conditions.up arrow

Posted:
| Report This Report Answer

Was this helpful?

YesNo

Thanks for your feedback.

4 of 9 found this helpful