What Does SPF Mean?

Excited for the August 21 eclipse? Visit our Eclipse 2017 page to explore the science, history, and myths of the event. The Curiosity team will be viewing the eclipse alongside NASA in Carbondale, Illinois. Follow us on Facebook for live videos, trivia, and interviews on the big day.

Sunscreen helps protect your skin against UVA and UVB rays. Roughly 90% of wrinkles are likely caused by sun damage. A way to protect against sun damage is by using SPF, which means sun protection factor. An SPF of 15 protects your skin for two and a half hours.

Share the knowledge!

Key Facts In This Video

  1. Sunscreen helps protect our skin against UVA and UVB rays. 00:01

  2. Although UVB rays are not as potent as UVA rays, they are the central cause of sunburning and tanning. 00:55

  3. The fairer your skin tone (or if you burn easily), the higher your SPF should be. 02:52

If you liked this you'll love our podcast! Check it out on iTunes, Stitcher, Google Play Music, SoundCloud, search 'curiosity' on your favorite podcast app or add the RSS Feed URL.

Advertisement