Moroccanoil Frizz Shield Spray is a heat-activated, frizz-fighting styling spray that leaves hair smooth, glassy, and silky-soft while caring for strands from the inside out with argan oil and other nourishing ingredients. It helps protect against thermal damage from blow-drying and repels humidity to control frizz and flyaways, with results that last for days..Cruelty-free.Defensive shield for long-lasting frizz control Glass-like shine and silky, non-sticky finish.Protects against thermal damage.5.4 oz.Spray throughout clean, damp hair. Comb to distribute evenly and blow-dry in sections to activate..Follow with a flat iron for enhanced anti-frizz benefits. Frizz Shield Spray should be the last product applied before blow-drying for optimal heat activation.