With Keratin and Marula oil from Africa, Keratin Smooth Shine Serum gives you 5 smoothing benefits—fights frizz, detangles knots, boosts shine, adds softness and tames flyaways—in 1 supremely smoothing system, for hair that’s silky but still full of natural movement. After you’ve shampooed and conditioned, this TRESemmé Keratin Smooth Shine Serum is the essential step in creating your smooth, glossy style. Designed with a non-greasy formula, this hair smoothing serum leaves hair healthy-looking and polished, sealing in all the head-turning shine. Get full movement with all the hair smoothing, anti frizz and shine a woman could ask for with our TRESemmé Keratin Smooth System and supremely smoothing shine serum. * Contains Keratin and Marula Oil, giving you 5 benefits in 1 system – Fights frizz, detangles knots, boosts shine, adds softness, and tames flyaways. * Helps to transform hair and create the glossy look of a professional blow-dry style. * Its non-greasy formula helps you achieve silky, smooth & shiny hair.