Nioxin Scalp + Hair Thickening System 2 Shampoo — 10.1 fl oz | For natural or untreated hair with niacinamide & biotin for fuller-

Nioxin Scalp + Hair Thickening System 2 Shampoo is a derma-purifying cleanser formulated to gently remove residue and help hair appear thicker and fuller on natural, untreated hair with progressed thinning.

Designed as the first step in Nioxin’s three-part regimen, System 2 Shampoo cleanses the scalp and hair using Activ-Renewal technology to lift sebum, environmental buildup, and fatty acids that can weigh hair down. This professional-grade formula supports a healthier-looking scalp and prepares strands to receive the follow-up conditioner and scalp treatment. It is part of the brand’s salon-backed approach to thinning hair care, developed over decades and used by stylists worldwide.

How does this shampoo prepare hair for thicker-looking results?

The shampoo removes excess oils, product residue, and environmental debris so the scalp and hair fiber are ready to absorb the conditioning and treatment steps that follow. Clean strands reflect light differently and sit with more lift, creating the visual impression of density.

• Activ-Renewal technology helps dislodge sebum and fatty film from the scalp.
• Deep-cleansing action reduces residue that can flatten hair structure.
• Formulated for daily use to keep the scalp environment balanced between washes.

What ingredients support thicker, fuller-looking hair without harsh stripping?

System 2 combines gentle cleansing agents with targeted actives such as niacinamide and biotin precursors to support the appearance of stronger hair. The formula avoids aggressive detergents while focusing on scalp cleanliness and hair body.

• Niacinamide helps improve scalp condition and promotes a healthier-feeling scalp surface.
• Biotin-related ingredients support the appearance of strengthened hair shaft structure.
• Botanical extracts and antioxidants protect hair from environmental stressors and UV exposure.

How should I use System 2 Shampoo for best outcomes?

Wet hair, apply a modest amount, and gently massage into the scalp and lengths for about one minute to loosen buildup, then rinse thoroughly. For visible improvement, use daily as the first step of Nioxin’s three-part System 2 routine—follow with the matching conditioner and scalp treatment.

• Apply to wet hair and lather for 60 seconds to allow cleansing actives to work.
• Rinse fully before applying Nioxin System 2 Scalp Therapy Conditioner.
• Incorporate the Scalp & Hair Treatment to complete the regimen for best results.

Will this product work for my hair type and level of thinning?

System 2 is formulated specifically for natural or untreated hair showing progressed thinning — not chemically processed or permanently treated hair. It targets visible thinning by improving scalp cleanliness, hair texture, and the appearance of density when used as directed.

• Best for natural, untreated hair with noticeable thinning or reduced volume.
• Not intended for hair that has been permanently colored or chemically treated; choose the system that matches your hair history.
• Clinically and dermatologically tested by the brand for performance on thinning hair types.

Who is this for: Nioxin System 2 Shampoo suits individuals with natural, untreated hair experiencing progressed thinning who want a salon-grade, daily-use cleanser that prioritizes scalp hygiene and prepares hair for fuller-looking results. It’s ideal for people seeking a non-harsh shampoo that supports a three-step Nioxin routine—pair it with the System 2 conditioner and scalp treatment for a complete approach to hair and scalp care.

Ingredients

Water/Eau, Sodium Laureth Sulfate, Sodium Lauryl Sulfate, Cocamidopropyl Betaine, Sodium Citrate, Sodium Xylenesulfonate, Sodium Chloride, Cocamide MEA, Sodium Benzoate, Citric Acid, Salicylic Acid, Mentha Piperita (Peppermint) Oil, Mentha Arvensis Leaf Oil, Menthol, Tetrasodium EDTA, Sodium Hydroxide, Methylparaben, Propylene Glycol, Camellia Sinensis Leaf Extract, Cystine Bis-PG-Propyl Silanetriol, Biotin, Lecithin, Niacinamide, Panthenol, Tocopheryl Acetate, Citrus Paradisi (Grapefruit) Peel Extract, Humulus Lupulus (Hops) Flower Extract, Urtica Dioica (Nettle) Leaf Extract, Yellow 5, Yeast Extract, Acer Saccharum (Sugar Maple) Extract, Citrus Limon (Lemon) Peel Extract, Saccharum Officinarum Extract, Vaccinium Myrtillus Leaf Extract, Blue 1, Citrus Aurantium Dulcis (Orange) Fruit Extract, Red 33, Potassium Sorbate.