The number one selling salon brand for thicker, fuller looking hair*. Nioxin is the only professional haircare brand endorsed by the Institute of Trichologists for thinning hair. Nioxin System 6 Cleanser For medium/coarse natural noticeably thinning hair is a daily hydrating shampoo which gently removes residue, DHT from hair & scalp. Provides nourishing vitamins, proteins & amino acids to enhance a healthy scalp environment. Leaves hair clean, smooth & beautiful. *Value Data Kline & Company