What tests were done to enable a water resistant claim?
In order for a sunscreen to make the claim water resistant, its SPF is measured before and after immersion in water and must protect the skin after 40 minutes in use. In order to make this claim under the New Drug Application requirements, Vichy conducted 3 different tests on 20 different people per test to ensure that Vichy Capital Soleil SPF 15 sunscreen for Face and Body with Mexoryl SX is water and perspiration resistant.