Heat styling is a great way to transform frizzy hair into smooth locks. But if you don’t protect your hair, you could end up with dry, damaged hair that‘s frizzier than ever. When you want a smooth, frizz-controlled style you should never settle for limp locks or poker straight hair that’s stiff and sticky. TRESemmé Keratin Smooth System, with Keratin and Marula oil from Africa, gives you 5 smoothing benefits in 1 system—fight frizz, detangle knots, boost shine, add softness and tame pesky flyaways— for hair that’s silky smooth and still full of natural movement. After shampooing and conditioning, lock in your style with TRESemmé Keratin Smooth Heat Protect Spray, which helps shield hair from heat up to 450°F, so you can smooth your way to professional-quality polish.