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Nioxin Pro Clinical 4 Scalp + Hair Shampoo. Previously known as Nioxin System 4 Cleanser Shampoo! Clinically and dermatologically tested. The shampoo nourishes and gently cleanses the hair to prevent against follicle-clogging sebum, resulting in thicker, fuller hair.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.