Nioxin System 4 Kit for Colored, Progressed Thinning Hair | Hair Thickening Shampoo, Conditioner, & Treatment | Large Size

A Fresh Start for Thinning Hair

Give color-treated hair with progressed thinning a complete scalp-focused reset with Nioxin System Kit 4. This 3-step hair thickening system combines shampoo, conditioner, and a leave-on treatment to cleanse buildup while supporting thicker-looking strands. The formulas feature niacinamide, biotin, caffeine, and refreshing mint oils to nourish the scalp and strengthen hair against breakage.

Designed for dry, damaged, or colored hair, this thinning hair system also helps maintain moisture balance and protect hair color. The leave-on treatment includes UV-protecting ingredients for the scalp and hair. It makes consistent scalp care straightforward from wash to finish.

• Complete 3-Step System: Includes a scalp + hair shampoo, conditioner, and leave-on thickening treatment for a coordinated routine.
• Progressed Thinning Support: Clinically designed for dry, damaged, or color-treated hair experiencing progressed thinning.
• UV-Protecting Ingredients: The Scalp + Hair Thickening Treatment contains UV-protecting ingredients for the scalp and hair.
• Niacinamide, Biotin & Caffeine: Featured ingredients help nourish the hair root and support stronger-looking hair.
• Refreshing Mint Oils: Wild mint and peppermint oils provide a fresh, invigorating scalp-care experience.
• Clinically & Dermatologically Tested: The complete System 4 regimen has been clinically and dermatologically tested.
• Simple Three-Step Routine: Shampoo and rinse, condition and rinse, then apply the treatment from roots to ends without rinsing.

Shampoo: 300mL | Conditioner: 300mL | Treatment: 100mL