Use "sun protection factor" in a sentence
1. Some may also have sun protection factor (SPF).
2. Does a sunscreen with a high SPF (sun protection factor) protect skin better than one with a lower SPF? How high should I go? A
1. Some may also have sun protection factor (SPF).
2. Does a sunscreen with a high SPF (sun protection factor) protect skin better than one with a lower SPF? How high should I go? A