SYSTEM 3 SCALP + HAIR SHAMPOO 10.1OZ. Benefits: Thickens the hair: Nioxin System Kit 3 is clinically designed to add thickness and fullness to dry, damaged, color-treated hair with light thinning, with visible results in just 30 days.. Nourishes the scalp: Infused with nourishing botanicals and antioxidants, this kit's Scalp + Hair Thickening Treatment can nourish and revitalize the scalp, improving its overall health and condition.. Research Results: 85% of consumers noticed a thickening effect, 80% noticed an increase in hair density, 80% noticed an increase in hair fullness. Disclaimers: *Based on a survey among 230 U.S. panelists concerned about thinning hair who tried the systems (each tested 1 system kit), conducted by SIRS, 2016.