System 5 Scalp Treatment is a moisturizing leave-on formula to help provide a refreshed scalp environment. For normal to thin-looking, medium to coarse, natural or chemically treated hair. contains antioxidants and botanicals to help clean away environmental residues helps provide moisture balance 3.4 oz. Made in America. How to use: Apply directly to entire scalp. Gently massage into scalp. Do not rinse. Use daily. May cause temporary redness to scalp after application.