All sunscreens require substantiation of their sun protection claims. We at ALS are specialists in the performance of static and water resistance SPF determination testing, as well as in-vitro tests for a broad spectrum. We offer both US FDA and ISO methods for international markets.
ALS uses all state-of-the-art, multi-port solar simulators for our SPF testing, and has 19 of these instruments located across five sites. Multi-ports deliver clearer, more reliable results than older, single port instruments used by some laboratories.