Smoothing Protein Shampoo-weightless smoothing moisturizes & conditions keratin enriched shampoo and conditioner helps protect. Enhances shine and moisture while protecting from damage and frizz, a daily use of keratin enriched conditioner enhances shine, improving elasticity, and infusing your hair with natural keratin bonds. Leaves hair full of shine, clean and Protects your hair from heat styling damage. Leaves hair tangle-free. Will not weigh down hair. Used together, these two products maintain your most beautiful hair. Keratin will not strip hair or cause buildup.