How to choose sun protection by the water

Start with protection that can be verified

The U.S. FDA advises broad-spectrum sunscreen alongside other protection such as shade and clothing. Product rules and approved claims differ by country, so use the regulator relevant to where you buy.

No sunscreen is waterproof. In the United States, water-resistant labels specify tested duration; swimming, sweating and towelling still require attention to directions.

Treat ‘reef-safe’ as a question

There is no single worldwide consumer definition enforced across every market for ‘reef-safe’. Read the ingredient list, destination law and product directions rather than trusting the front label alone.

Do not reduce reef protection to sunscreen. Wastewater, runoff, anchoring, contact and warming are also important pressures.

• Regulated broad-spectrum claim.
• SPF suited to the official guidance you follow.
• Water-resistance duration where stated.
• Destination ingredient rules.
• Comfortable enough to apply properly.

Build the physical layer

Use shade during intense hours, a broad-brimmed hat, UV-protective or tightly woven clothing and sunglasses. For swimming, choose secure clothing that does not restrict movement.

Apply sunscreen before exposure according to the label, use enough, cover missed areas and reapply exactly as directed. Seek medical advice for infants, allergies or skin conditions.