The Nioxin System 4 Scalp + Hair Shampoo rinses away excess oils and impurities from the hair while encouraging a thicker appearance. The formula creates a conditioning lather to hydrate and nourish for a volumised finish.

Enriched with biotin, the colour-safe shampoo helps to visibly strengthen brittle strands weakened by heat or chemical damage, alongside niacinamide to nourish and encourage radiant shine. Use alongside the complete System 4 collection for best results.