TRESemmé Keratin Smooth has been trusted by millions of women to care for their hair, thus winning 2 awards as Best Shampoo by Bazaar Beauty Award 2018 and Female Daily Award 2018. With Keratin and Argan Oil, TRESemmé Keratin Smooth provides 5 benefits of soft hair for any hairstyle you have. What is the function of keratin? Keratin is a natural protein in hair to maintain healthy hair and repair damaged hair. In addition, keratin also makes hair look straighter like hair smoothed. Meanwhile, dull hair can be overcome with Argan Oil content which is rich in Vitamin E and Fatty Acids, so your hair becomes softer and shinier. Not only that, in TRESemmé Keratin Smooth there is also Shea Butter which can protect hair from UV rays, Jojoba Oil which can prevent limp hair, and Marula Oil which provides moisture with antioxidants.