Blow-dry hair in less time with Paul Mitchell Super Skinny Serum! This best-selling blowout primer helps protect hair from heat with up to 450°F thermal heat protection* and reduced drying time, so you get silky-smooth results faster. The humidity-resistant formula contains lightweight silicones that absorb into hair without weighing it down and seal the cuticle, leaving hair frizz-free in any weather. Simply rub one pump of the Paul Mitchell smoothing hair serum into your hands and apply it to clean, damp hair before drying for smooth, shiny strands.