

⚡ Unlock fuller, thicker hair — because your scalp deserves the spotlight!
Nioxin System 4 Shampoo is a professional-grade, color-safe formula designed for dry, damaged, and color-treated hair with progressed thinning. Clinically proven to increase hair thickness and density by up to 85%, it deeply cleanses the scalp, removes follicle-clogging impurities, and nourishes with niacinamide, biotin, and antioxidants. Trusted by stylists for over 16 years, this shampoo revitalizes scalp health while protecting hair color, delivering visibly fuller, healthier hair in just 30 days.



















































| ASIN | B001390336 |
| Best Sellers Rank | #3,558 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #110 in Hair Shampoo |
| Department | UNISEX |
| Is Discontinued By Manufacturer | No |
| Item model number | 81629286 |
| Manufacturer | Nioxin |
| Product Dimensions | 3.39 x 2.87 x 10.63 inches; 2.1 Pounds |
| UPC | 070018007445 |
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