(CNN) – As you head out to the beach this summer, you might want to think twice about the sunscreen you’re using. By now you might already know that dermatologists recommend a sunscreen that is at least SPF30.
A new study shows you might not be getting the protection you think. According to consumer reports nearly half of sunscreen products they tested have a lower SPF than their labels claim.
Two of the worst examples were brands meant for children. They both claimed to have SPF50, but consumer reports found the number to be closer to 8.
The discrepancy could be in how the sunscreens were tested. Consumer reports soaked the participants in water. Manufacturers tend to test sunscreen performance on people who are not wet. Most products claim to be water resistant for up to 80 minutes.
To get the most out of your sunscreen, the American Academy of Dermatology has the following recommendations:
- Use an amount of sunscreen roughly equivalent to the size of your palm.
- Apply it all over your body.
- And re-apply every two hours.