NIOXIN Scalp + Hair Thickening System 2 Shampoo — 33.8 fl oz for Natural/Progressed Thinning, Niacinamide & Biotin

This professional-strength shampoo is the first step in Nioxin's three-part System 2 regimen, created for natural or untreated hair showing progressed thinning. The formula uses Activ-Renewal technology to lift sebum, environmental buildup and fatty acids from the scalp and hair shaft, preparing hair and skin for the follow-up conditioner and leave-in treatment. Infused with niacinamide and biotin, the cleanser focuses on scalp health and visible texture improvement without harshness.

How does this shampoo improve the appearance of thinning hair?

The cleanser clears pore-clogging oils and residues that can flatten strands, so hair appears fuller at the root and along the shaft. By removing buildup, the formula allows subsequent thickening products to work more effectively and delivers noticeable body in weeks when used consistently.

• Activ-Renewal technology removes sebum and environmental residue.
• Deep-cleansing action lifts oils that weigh hair down.
• Prepares follicles for conditioner and topical treatments.

What key ingredients are in System 2 and what do they do?

System 2 includes niacinamide and biotin alongside botanicals and antioxidants that support scalp moisture balance and strand resilience. These ingredients are selected to promote a healthier scalp environment and reduce the visible signs of thinning by strengthening hair structure.

• Niacinamide: supports scalp circulation and balanced moisture.
• Biotin: helps reinforce hair structure for less breakage.
• Botanicals and antioxidants: calm and protect scalp from environmental stressors.

How should I use this shampoo for best results?

Apply to wet hair and massage into the scalp and roots for about one minute before rinsing to thoroughly remove buildup. Use daily as the first step of the three-part System 2 routine, following with the System 2 Scalp Therapy Conditioner and Scalp & Hair Treatment to maximize visible thickness.

• Wet hair thoroughly, apply a small amount, and massage for one minute.
• Rinse completely and continue with System 2 conditioner and treatment.
• Daily use delivers the most consistent visible improvement in 30 days.

Is this shampoo suitable for my hair type and thinning level?

System 2 is formulated specifically for natural or untreated hair showing signs of progressed thinning—when density has noticeably decreased but hair is not chemically altered. It’s a targeted option for those seeking a salon-grade approach to scalp care and improved volume without changing texture through chemicals.

• Designed for natural, untreated hair with progressed thinning.
• Not intended for chemically processed or colored hair types needing other System versions.
• Works best as part of the complete three-step Nioxin regimen.

Who is this for: This shampoo is ideal for people with natural or untreated hair experiencing visible thinning who want a clinic-grade cleanser to reduce scalp buildup and boost hair body. If your goal is to support scalp health, strengthen fragile strands and amplify hair structure as part of a regular routine, Nioxin System 2 is designed to be the foundational cleansing step before conditioner and topical treatments.

Ingredients

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