Choose SPF 30+
Look for broad-spectrum and water-resistant on the label. No sunscreen is waterproof or a complete sun block.
Sunscreen is one part of the plan.
Choose a broad-spectrum, water-resistant sunscreen with SPF 30 or higher. Apply it generously before going outdoors, then combine it with shade, clothing, a broad-brimmed hat, and sunglasses rather than relying on sunscreen alone.

What matters most
Look for broad-spectrum and water-resistant on the label. No sunscreen is waterproof or a complete sun block.
Use a generous, even layer about 15 minutes before going outdoors, including ears, neck, feet, and other easy-to-miss areas.
Reapply at least every two hours outdoors and after swimming or sweating. Seek shade and add protective clothing, a hat, and sunglasses.
A simple starting point
Cover exposed skin evenly around 15 minutes before outdoors.
At least every two hours, and after swimming or sweating.
Use shade, clothing, a broad-brimmed hat, and sunglasses.
Keep babies younger than 6 months out of direct sun as much as possible and ask their clinician before using sunscreen. Follow the product label, avoid the eyes, and stop use if a significant reaction develops.
Guidance informed by U.S. Food and Drug Administration · U.S. Centers for Disease Control and Prevention · Reviewed August 2026