Nioxin System 4 Shampoo & Conditioner Duo — Clear

Nioxin System 4 is a two-piece hair care duo designed for coloured hair with progressive thinning. The set combines a cleanser shampoo that removes buildup and a scalp therapy conditioner formulated to revitalize the scalp and hair structure. Each bottle contains 33.8 oz (1L) of product. The system targets the needs of colour-treated hair experiencing density loss, delivering gentle cleansing and therapeutic conditioning in one complete regimen.