Bed Head's Straighten Out Serum new on the outside and just as epic on the inside. A frizz-free formulation, not only designed with, but used by salon professionals. Delivering salon results and salon experience at home. Say goodbye to frizz and hello to glossy, smooth hair with the Bed Head Straighten Out Anti-Frizz Serum! This lightweight, shiny hair product leaves hair smooth and shiny for up to 48 hours, even in 98% humidity*. The hair serum also moisturizes hair and protects hair from heat styling. Great for smoothing frizzy hair. Apply evenly to damp hair. From roots to ends. Comb through for even distribution. Blow dry evenly with a brush. For best results follow with a straightening iron to lock in the smooth. Formulated with Thermosetting polymer that provides humidity-proof straight and smooth hair, Conditioning Agents that smooth the hair cuticle for super shine, calming static and defence against frizz and Glycerin that helps keep hair moisturized and shiny. The professional serum is 3.38 fl oz and comes with an amazing Enchanting Summer Fruit fragrance! *vs non-conditioning shampoo