Reviewed guide
How to Choose a Sunscreen
A practical label-first framework for choosing a sunscreen for daily wear, swimming, sports, and family use.
Reviewed 2026-08-24 · SunShieldLab editorial review
Start with the label
Check the labeled SPF, broad-spectrum statement, water-resistance duration, directions, warnings, active ingredients, and expiration information. Treat each as a separate fact; a high SPF does not by itself establish water resistance or broad-spectrum coverage.
Match the setting
For swimming or heavy sweating, look for a labeled water-resistance duration and follow the product directions. For everyday use, consider where you will apply it, how readily you can apply enough, and whether the format works with your routine.
Compare like with like
Compare the same size and pack count. Sticks, lotions, sprays, face products, and body products may suit different application needs, so price alone is not a complete comparison.
Build a broader routine
Sunscreen is one part of sun protection. Shade, covering clothing, a brimmed hat, and sunglasses can reduce reliance on any single measure.
Sources and further reading
Reviewed evidence used in this guide
A broad-spectrum sunscreen has passed the applicable test for protection across UVA and UVB radiation; broad-spectrum status should be checked separately from SPF.
Sunscreen works best as one part of a broader sun-protection approach that can also include shade, protective clothing, a brimmed hat, and sunglasses.
- Centers for Disease Control and Prevention — Sun Safety Facts (How to protect your skin from the sun)
Sunscreen is not waterproof. In the United States, a water-resistant label states whether tested protection is retained for 40 or 80 minutes while swimming or sweating.
- U.S. Food and Drug Administration — Sunscreen: How to Help Protect Your Skin from the Sun (Is sunscreen waterproof?)