Living Proof.Living Proof. No Frizz Humidity Shield - Travel Size

BUY at Birchbox

Fact: Hair can absorb more than a third of its weight in water-which is a recipe for disaster on a humid day. Luckily, this lightweight humidity shield is packed with frizz-fighting molecules, anti-static agents, and UV protectants that work together to block humidity and stop frizz in its tracks-all without weighing your hair down or leaving build-up. So stop hiding inside on swampy day-get out there and enjoy yourself (and your great hair)!