Looking for the ultimate broad spectrum sunscreen? Look no further than iS Clinical Extreme Protect SPF 40! Formulated with our proprietary Extremozyme technology and scientifically advanced all-physical sunscreen actives, this powerful sunscreen provides superior protection against harmful UVA and UVB rays. Perfect for those who are looking for a restorative sunscreen that helps support optimal skin health, iS Clinical Extreme Protect SPF 40 is also water resistant and helps reduce erythema (sunburn). Plus, it hydrates and smoothes the skin for a more youthful appearance.