Life doesn't always run smooth, but there's no reason why you hair can't. Get that silky style you crave. Don't let unruly frizz get the better of you. Use the Keratin Smooth collection to get smooth, more manageable hair for up to 48 hours (TRESemme Keratin Smooth Shampoo and Conditioner system vs. non-conditioning). So get ready to say so-long to frizz. When used with TRESemme Keratin Infusing Shampoo, this salon-quality conditioner infused with keratin nourishes each strand to leave hair smooth, shiny and manageable.