IS SUNSCREEN WATERPROOF?
Sunscreen is not waterproof Sunscreen can be "Water Resistant". In order to make the claim of "water resistant" a sunscreen must pass a test to prove that it maintained SPF levels after exposure to water or sweat.
The claims of water resistance is for 40 minutes and the claim for very water resistant is 80 minutes. This means that the sunscreens have to keep their SPF levels after exposure in a hot jacuzzi.
It also means that after 40 or 80 minutes in the water, the level of protection you receive from your sunscreen will begin to decrease - which is the reason you have to re aply sunscreen regularly
