An effective and innovative leave in treatment the nioxin system 6 scalp treatment for noticeably thinning medium to coarse natural or chemically treated hair is the last step in your nioxin three step system specifically designed to help strengthen smooth and moisturise your hair it contains antioxidants and botanicals that work in synergy to maintain a refreshed scalp environment formulated with glyco shield smoothplex and transactive delivery system technologies the treatment inc