Product Overview If you are concerned about noticeably thinning hair & have fine, chemically treated hair then Nioxin Scalp Treatment System 4 100ml is just what you need to help improve your hairs appearance. Benefits Nioxin Scalp Treatment System 4 is a brilliant leave on conditioner which helps to refresh your scalp environment, with antioxidants & botanicals that leave you feeling refreshed. It increases the fullness of each hair str&, reducing hair loss through strengthening each hair against breakage. Key Technology Nioxin Scalp Treatment System 3 contains Bio Amp which helps to strengthen your hair, a Scalp Access System which removes build up on your scalp & a Glycoshield that provides protection & moisture balance to your hair.