Fight frizz with TIGI Bed Head Control Freak Serum Frizz Control and Straightener..............Control Freak serum seals in moisture, adds shine and provides thermal protection in preparation for heat styling............The light, greaseless formula conditions and moisturises hair giving you a humidity-resistant, glossy finish...............For smooth, straight locks, apply evenly to damp hair then blow dry with a large round or paddle brush to pull the hair straight while applying heat. For frizz-free curls, apply evenly and allow to dry naturally or dry with a diffuser.