System 6 Cleanser Shampoo by NIOXIN is designed to remove oil and debris such as sebum, fatty acids, and environmental residue which can block hair follicles. It gently removes product build-up, clearing nutrient pathways to your scalp and hair follicle sites without stripping hair of essential oils. Contains cystine amino acids and lightweight conditioning and treatment ingredients. Helps provide thicker-looking hair by increasing the fullness of each hair strand, reducing hair loss by strengthening against damage and breakage. White tea extract, peppermint oil, and cleansing agents provide a refreshed scalp environment and healthy shine to natural hair.