What “water resistant” really means on a sunscreen label

“Water resistant” is a defined label claim, not a promise that sunscreen is waterproof, sweatproof, or effective all day. Under FDA requirements, a water-resistant sunscreen states whether it maintains protection for 40 or 80 minutes while swimming or sweating.

FDA says there is no waterproof sunscreen because sunscreen eventually washes off. The label’s time period is a tested result that can help you choose a product for water or activity, but it does not remove the need to follow directions.

FDA labeling guidance says to reapply at least every two hours. For water-resistant sunscreen, reapply after the stated swimming or sweating period and immediately after towel drying. If you are swimming or sweating and your sunscreen is not water resistant, FDA guidance says to use a water-resistant product.

Read the exact directions on the product you are using. Water resistance is useful information, but it is only one part of a practical sun-protection routine.

AREV Daily UV Fluid is in development. Final formula and SPF will be announced after finished-product testing. This article is general sunscreen education, not a claim about our product.

Sources

FDA: Sunscreen guidance — https://www.fda.gov/drugs/understanding-over-counter-medicines/sunscreen-how-help-protect-your-skin-sun

FDA: Sunscreen labeling and effectiveness testing guide — https://www.fda.gov/regulatory-information/search-fda-guidance-documents/labeling-and-effectiveness-testing-sunscreen-drug-products-over-counter-human-use-small-entity

FDA: Final sunscreen monograph order OTC000006 — https://www.accessdata.fda.gov/drugsatfda_docs/omuf/Order/Final%20Administrative%20Order%20OTC000006_M020-Sunscreen%20Drug%20Products%20for%20OTC%20Human%20Use.pdf