What is the Difference between a Physical Sunscreen Filter and a Chemical Sunscreen Filter?
A physical sunscreen filter blocks and scatters the UV rays before they get to your skin. A chemical sunscreen filter absorbs the UV and re-emits it as harmless energy. We use both an FDA-approved physical filter (titanium dioxide which we prefer to zinc oxide, the other approved physical filter, because it sticks to your skin better) and a FDA approved chemical filter (usually more than one) in our SPF 30+ products to ensure bullet-proof protection. Physical filters are far more “photo-stable” than chemical filters; they are far less likely to lose their ability to block UV over time when exposed to sunlight.
