Noah Yals Hyaluronic Acid Repair Shampoo is designed to care for and repair hair. Hyaluronic acid is a well-known ingredient for its moisturizing and rejuvenating properties, so this shampoo helps restore the health and vitality of damaged hair. In addition, the shampoo contains other nourishing and strengthening ingredients that help strengthen hair from root to tip. Its gentle, sulfate-free formula allows for effective cleansing without damaging or drying out the hair. This shampoo is ideal for those who want to repair and revitalize their hair, leaving it soft, shiny and healthy. Instructions for use The minimum instructions for use for Noah Yals Hyaluronic Acid Repair Shampoo are as follows: Apply a small amount of shampoo to wet hair and gently massage into the scalp. Leave on for a few minutes, then rinse thoroughly with water. Regular use of the shampoo is recommended for best results.