Keratin Complex Infusion Therapy Keratin Replenisher in a 4oz (118ml) tube. This powerful blow-dry cream is designed to dramatically cut drying time while fighting frizz and replenishing essential moisture and shine. It uses a hydrolyzed keratin formula to protect hair from heat and environmental damage. Authentic professional salon product. Directions for use: Apply a small amount to damp or dry hair and style as desired for optimal smoothness. New and unused.