NioxinDerma Purifying System 2 Cleanser Shampoo (Natural Hair, Progressed Thinning) 500ml/16.9oz

What you are looking at is NioxinDerma Purifying System 2 Cleanser Shampoo (Natural Hair, Progressed Thinning), a unisex haircare product. Build-up is the usual reason a product that worked for months appears to stop working. Work it through damp mid-lengths and ends, keeping oils and masks off the roots unless the label says otherwise. Discounted listings come and go, and rarely at the same shop twice. Store it away from steam and direct sun; both shorten the life of the formula. Add delivery to the cheapest price and you will see whether it is genuinely the best deal.