Nioxin Diameter System 2 Scalp & Hair Treatment is specifically formulated for natural hair with progressed thinning, delivering visibly thicker, fuller-looking hair. Designed as Step 3 of the 3D Care System Kit 2, it completes a science-driven routine that supports scalp health while enhancing density and shine.

Powered by Scalp Access Delivery 2.0 with UV-protection ingredients, this treatment shields follicles from daily stress and helps maintain a healthy moisture balance. Shake well before use, apply evenly to the entire scalp, and enjoy a quick, no-rinse experience that leaves hair looking thicker and more resilient.

• UV-protected Scalp Access Delivery 2.0 guards follicles while supporting growth-focused delivery
• Increased hair resilience helps hair stand up to styling and environmental stress
• Moisture balance control prevents dryness and excess oil for a consistent feel
• No-rinse, easy application fits into busy routines
• Thicker, fuller-looking hair with shine delivers a healthy, natural appearance

Experience a refreshed scalp and amplified fullness—add Nioxin Diameter System 2 to your regimen today.