The Nioxin Scalp Treatment 5 for Medium Thick Natural Coloured Hair is a fantastic product designed to give you thicker, denser hair. This nourishing product cleans, cleanses & cares for your hair & scalp, leaving them refreshed. Formulated with hard working antioxidants & botanicals to refresh the scalp environment this Nioxin Scalp Treatment 5 for Medium Thick Natural Coloured Hair is the third step in this advanced system to restore thickness to hair. Directions of use: Apply directly to entire scalp. Gently massage into scalp. Do not rinse.