System 3 thinning hair kit for fine chemically enh. Normal thin hair by Nioxin for unisex 3 piece kit 10.1ounce cleanser, 5.1ounce scalp therapy, 3.4ounce scalp activating treatment. System 3 thinning hair kit for fine chemically enh. Normal thin hair was launched by the design house of Nioxin. It is recommended for normal hair.