This range has been carefully selected for its latest technology, driven by our salon heritage we work with our stylists to deliver expert solutions from salon quality products. Why Use 7 Day Keratin Smooth Shampoo? Infused with Keratin and made with lower sulfates this product gently cleanses and removes impurities. For 7 Day Keratin Smooth Conditioner and 7 Day Heat Activated Treatment. Gentle enough for everyday use and on color treated hair. Why Use 7 Day Keratin Smooth Conditioner? This Conditioner, as part of the 7 Day Smooth System, works with the heat of your flat iron to transform unruly hair into salon-smooth hair that even lasts through 3 washes. You can easily create your style everyday with less frizz and more manageability. Gentle enough for everyday use and on color treated hair. Why Use 7 Day Keratin Smooth Heat Activated Treatment? This Heat Activated Treatment, as part of the 7 Day Smooth System, works with the heat of your flat iron to transform unruly hair into salon-smooth hair that even lasts through 3 washes. You can easily create your style every day with less frizz and more manageability.