At TRESemmé we understand the frustration of dull, dry hair that's been damaged by styling appliances and other external factors. Our Keratin Smooth & Straight conditioner range formulated with Keratin and Argan oil gives you 72 hours of frizz control whilst also detangles knots, boosts shine, adds softness and tames flyaways enabling you to achieve a hair look that is silky smooth, but still full of natural movement. To achieve the best results, try our full Keratin Smooth & Straight hair products range.