TRESemmé Keratin Smooth hair conditioner helps to control frizzy hair without leaving hair looking dull. TRESemme’s Keratin Smooth System helps you to achieve silky smooth hair that’s still full of natural movement. Formulated with Keratin and Marula oil; you can enjoy up to 72 hours of frizz control with the Keratin Smooth hair conditioner. Deep conditioner – detangles knots, boosts shine, adds softness and tames flyaways. Enjoy a smooth look and feel that moves as you do with our keratin conditioner. Follow up with the TRESemmé Keratin Deep Smoothing Mask to smooth every strand and control frizzy hair.