Use the Keratin Smooth system to get smooth, more manageable hair for up to 48 hours. So get ready to say so-long to frizz with the latest salon innovation. For those who want hair that"s smooth, straight and easy to style, use the shampoo specifically formulated to leave your hair gorgeously sleek and manageable. The Tresemme Keratin Smooth Shampoo and Conditioner system transforms your hair, making it gorgeously sleek with less frizz, smooth and easy to style.Comes in 500 ml bottle.