spf-15-vs-spf-30

Key Takeaways

  • SPF 30 blocks about 97% of UVB rays. SPF 15 blocks around 93%.
  • SPF 15 has its time in the sun, so to speak, like errands or layering under a tanning oil for the last few rays before sunset.
  • SPF 30 is the better daily default for long beach days, time on the water, or anywhere UV is reflecting.
  • Either way, broad spectrum coverage and reapplying every 80 minutes to two hours (or after swimming) is what keeps your skin protected.

Table of Contents

We’re going for bronzed, not burned, and choosing between SPF 15 vs. SPF 30 can be the difference between the two. Here's what to know before you, ahem, reach for the bottle.

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