Ideal hair oil for damaged and brittle hair. Restruct System Crystal Oil, thanks to its film-forming action, helps to discipline the hair, preventing frizz. Rebuilds the hair from the inside. It focuses on the damaged parts of the hair. It provides shine, smoothness and energy to the hair. Enriched with keratin and marine collagen. It does not weigh down or grease the hair. Leaves hair shiny and soft. Thanks to keratin, it rebuilds from the inside, helping to renew cells. Marine collagen restores lost nutrients and prevents imperfections. Directions for use: Apply a small amount to damp or dry hair. Do not rinse.