TRESemm 7 Day Keratin Smooth Shampoo made with lower sulfates vs the leading TRESemm shampoo will gently cleanse and remove impurities TRESemm 7 Day Keratin Smooth shampoo is infused with keratin and provides frizz resistance and improved manageability to help to make everyday styling easy TRESemm Keratin Smooth shampoo is perfect for colortreated hair and gentle enough for everyday use giving you salonsmooth hair that lasts up to a week or 3 washes Professional affordable salonquality keratin infused shampoo without the salon price tag TRESemm 7 Day Keratin Smooth Shampoo is the first step in a 3 Step System that includes TRESemm 7 Day Smooth Conditioner and TRESemm7 Day Keratin Smooth Heat Activated Treatment