Nioxin System 4 Cleanser ShampooNioxin System 4 Cleanser is a hair revival solution for colour hair experiencing progressed thinning. Formulated with peppermint oil, white tea extracts and conditioning agents, this cleansing shampoo works to remove residue from the hair and scalp while nourishing the scalp to encourage hair growth and strengthening. Requiring added moisture, coloured hair is protected with conditioning agents to lock in colour and shine.