Salt water resistant

Test of reduction of SPF caused by salt water

Regulatory reference: ISO 24444:2019.
Claim: Salt water resistant
Application field: Finished sunscreen products.
Description of the test: Test performed on 10 volunteers, by comparison of pre-wash and post-wash SPF. The treatment includes two washes, one in salt water, performed by irroration with 1M NaCl solution by a pressureless drop shower, and one in fresh water. If the reduction of protection is greater than than 50% the product isn’t considered to be “Salt Water Resistant”.
Posted in Sunscreens, Water resistant, Claim for OTC, Salt water resistant