TRESemme specially formulated with lower sulphates and high-quality ingredients, this shampoo will nourish each strand of your hair to give you straighter, shinier, and more manageable. The power of Keratin protein, eliminates unruly hair. Suitable for both natural and chemically-treated hair. Makes your tresses more manageable for up to 48 hours. TRESemmé Keratin Smooth Shampoo is low on sulphate to give you healthy and frizz-free hair. Apply to wet hair, gently massage and work into a lather.