NIOXIN System 3 Scalp + Hair Shampoo for Color-Treated Light Thinning — 16.9 fl oz, Niacinamide & Biotin

Nioxin System 3 Scalp + Hair Shampoo is a salon-grade cleanser formulated to strengthen and moisturize color-treated, damaged hair while refreshing the scalp for the appearance of thicker, fuller hair.

Designed as the first step in Nioxin’s three-part regimen, System 3 targets dry, chemically treated hair with light thinning. The formula combines niacinamide, biotin, European botanicals and humectants to remove residue, relieve scalp tightness, and leave hair more resilient without stripping color. This 16.9 fl oz professional bottle is intended for daily use and pairs best with the System 3 conditioner and scalp treatment for amplified results.

How does this shampoo help colored or chemically treated hair?

System 3 cleanses without over-drying, preserving color while restoring moisture balance. Its blend of nourishing botanicals and humectants helps maintain the integrity of chemically treated strands so they feel smoother and appear fuller.

• Gentle cleansing removes environmental residues and excess sebum that dull color.
• Humectants replenish moisture to reduce brittleness in treated hair.
• Formulated to protect hair structure during routine washing.

Can this product improve the look of thinning hair?

The shampoo is formulated to strengthen hair at the scalp and along the shaft, which can reduce breakage and enhance the perception of density. While individual results vary, many users report fuller-looking hair with consistent use as part of the complete System 3 regimen.

• Removes follicle-clogging sebum and buildup that can obscure hair and scalp.
• Includes proteins and amino acids to support hair resilience and reduce snap-off.
• Designed to amplify hair texture for improved visual fullness.

What are the key ingredients and how do they work?

Nioxin blends niacinamide and biotin with European botanicals to nourish scalp and hair fibers. These components work together to hydrate, soothe tightness from dryness, and help create a healthy foundation for stronger hair growth cycles.

• Niacinamide helps support scalp comfort and surface health.
• Biotin and proteins nourish hair and help maintain strand strength.
• Botanical extracts and humectants lock in moisture for softness and manageability.

How should I use System 3 for best results?

Apply to wet hair, gently massage into scalp and hair, lather for one minute, then rinse thoroughly. For optimal outcomes, follow with Nioxin System 3 Scalp Therapy Conditioner and the Scalp & Hair Treatment as directed.

• Use daily as the first step of the three-part System 3 regimen.
• Massage purposely at the scalp to clear residue and stimulate circulation.
• Pair with System 3 conditioner and treatment for full protocol benefits.

Who is this for: Nioxin System 3 is aimed at people with normal to fine, color-treated or chemically processed hair experiencing light thinning and dry scalp. It’s suited to anyone seeking a salon-quality shampoo that cleanses thoroughly, supports scalp comfort, and helps hair look thicker and more textured without compromising color. Ideal for daily users and those following a targeted scalp-and-hair thickening routine.

Ingredients

Aqua, Sodium Laureth Sulfate, Sodium Lauryl Sulfate, Citric Acid, Sodium Chloride, PPG-2 Hydroxyethyl Coco/Isostearamide, Sodium Citrate, Sodium Xylenesulfonate, Sodium Benzoate, Salicylic Acid, Sodium Hydroxide, Tetrasodium EDTA, Mentha Piperita Oil, Mentha Arvensis Leaf Oil, Menthol, Trisodium Ethylenediamine Disuccinate, Methylparaben, Polyquaternium-10, Propylene Glycol, Camellia Sinensis Leaf Extract, Cystine Bis-PG-Propyl Silanetriol, Biotin, Lecithin, Niacinamide, Panthenol, Tocopheryl Acetate, Foeniculum Vulgare Fruit Extract, Sodium Acetate, Isopropyl Alcohol, Faex Extract, CI 42090, Acer Saccharum Extract, Citrus Limon Peel Extract, Saccharum Officinarum Extract, Vaccinium Myrtillus Leaf Extract, Citrus Aurantium Dulcis Fruit Extract, Potassium Sorbate