NIOXIN Scalp and Hair Thickening System 3 Leave on Treatment 100ml

The Nioxin System 3 Scalp + Hair Thickening Treatment delivers visibly fuller, thicker-looking hair in as little as 30 days, adding body and shine. Formulated with biotin and niacinamide, this lightweight serum hydrates the scalp and strands while helping to boost volume and reduce signs of brittleness. It supports stronger-feeling hair with fewer visible split ends and dryness. Ideal for fine, fragile, or colour-treated hair, it works best when used daily alongside the System 3 shampoo and conditioner.