TRESemme 7 Day Keratin Smooth Shampoo, made with lower sulfates vs. the leading TRESemme shampoo, will gently cleanse and remove impurities;TRESemme 7 Day Keratin Smooth shampoo is infused with keratin and provides frizz resistance and improved manageability to help to make everyday styling easy;TRESemme Keratin Smooth shampoo is perfect for color-treated hair and gentle enough for everyday use, giving you salon-smooth hair that lasts up to a week or 3 washes;Professional, affordable salon-quality keratin infused shampoo without the salon price tag;TRESemme 7 Day Keratin Smooth Shampoo is the first step in a 3 Step System that includes TRESemme 7 Day Smooth Conditioner and TRESemme7 Day Keratin Smooth Heat Activated Treatment