Why We Love It: Protecting hair from heat (up to 450°F), accelerating drying time, and beating back frizz and humidity? It might be magic, or it just might be Jennifer Aniston’s secret weapon for hair that looks and stays smooth all day long. (And when it comes to hair, there’s no one we trust more).

How You’ll Use It: Shake, then spray evenly from roots to ends, six inches from your head. Use on damp hair for faster dry time or on dry strands to protect before heat-styling.