It does what it says & more, protects against frizz, acts as a barrier to humidity & leaves hair soft, silky & flyaway-free. Can be used anytime, after Prep or Tonic Lotion, before, during & after styling. To Use: Squeeze a few drops onto palm, work through hair with fingers, use on damp hair to define curl & control frizz blow dry or let dry. Use on dry hair to add sheen, control flyaways & add movement.