What do you mean by stating Mexoryl SX is a unique UVA filter?
Mexoryl SX is a unique photostable UVA filter now available in the U.S. The Mexoryl SX molecule (Ecamsule) is a photostable filter that is not dependant on outside sources of stabilization. Mexoryl protects against short UVA rays. Avobenzone filters out long UVA rays and Octocrylene filters UVB rays while photostabilizing Avobenzone.