Z-Cote is the trademarked name of a formulation of zinc oxide. Usually zinc oxide is white (the stuff surfers put on their noses) but some company found a way to make it transparent. They are my heroes! Supposedly zinc oxide is the only sunblocking chemical that no one has ever reported any allergic reactions to.

I use a similar sunscreen to what Brandi uses. I have really sensitive skin - most sunscreens make me break out in full blown hives almost instantaneously... except for sunscreen made with Z-Cote.