Serum Frizz Control & Straightener Fights the frizz & stomps the curl with this TIGI Bed Head Control Freak Serum. It acts as a thermal protectant that can protect your hair from mechanical heat & moisturize hair at the same time. Its light, greaseless & humidity resistant formula delivers a straight-up glossy finish. It is also the third step of Control Freak. For best result, please use this serum with TIGI Bed Head Control Freak Shampoo & Conditioner. How to use: Firstly, apply evenly to damp hair. Then layer with Control Freak Extra Extra straight if you have more resistant curls. Use a round brush or large paddle brush to pull your hair tight while blow-drying for a straight finish or dry as desired for frizz free curls & waves.