4 Things to Know About SPF 30 vs. SPF 50

SPF 30 blocks about 97% of UVB rays, while SPF 50 blocks about 98%. The difference is only 1% in protection.

For daily use like commuting or sitting by a window, SPF 30 is sufficient. It is easier to find in textures you will actually wear consistently.

For beach or pool days with hours of direct sun, choose SPF 50 or higher. The real benefit is water resistance and a stronger buffer against missed spots.

Skip SPF 100. The extra protection is negligible, and you are better off focusing on reapplying every 80 minutes.