NIOXIN System 3 Scalp + Hair Shampoo — 33.8 fl oz for Color-Treated, Light Thinning | Niacinamide & Biotin

This professional-strength shampoo is the first step in Nioxin’s three-part System 3 regimen, created to address hair that has been color treated or chemically processed and shows early signs of thinning. Enriched with niacinamide, biotin, botanical extracts and humectants, the formula removes residue and excess oils while delivering moisture to a dry, tight scalp. The large 33.8 fl oz size suits frequent use and makes it practical for daily routines or salon environments.

How does this shampoo improve the scalp environment for color-treated hair?

The cleansing system lifts sebum, fatty acids and environmental build-up that can obstruct follicles, creating a cleaner base for hair to look fuller. It avoids harsh stripping by including humectants and botanicals that restore moisture and soothe tightness from dryness. Regular use prepares the scalp for the follow-up conditioner and treatment in the System 3 kit.

• Removes follicle-clogging sebum and residues for a cleaner scalp surface
• Humectants and botanicals rehydrate and relieve scalp tightness
• Formulated to protect and maintain color-treated strands
• Designed as step 1 in a three-part thickening regimen

What results can I expect and how soon will they appear?

Users frequently report a visible improvement in thickness and fullness with consistent use alongside the System 3 conditioner and treatment. Nioxin data shows many consumers see thicker-looking hair and increased density within weeks when using the full protocol. Results depend on hair condition and adherence to the daily regimen.

• Visible thicker-looking hair reported by a majority of users with regular use
• Supports reduced breakage by strengthening hair structure
• Works best when combined with System 3 conditioner and topical scalp treatment

Which ingredients help support damaged, color-treated hair without stripping color?

The formula balances gentle cleansing agents with strengthening vitamins and proteins such as niacinamide and biotin, plus plant-derived botanicals and humectants. These components help preserve color integrity while improving manageability and resilience. The result is a cleaner, conditioned strand that retains color vibrancy longer than harsh clarifying alternatives.

• Niacinamide and biotin to support healthier-feeling strands and scalp comfort
• Botanical extracts and humectants to restore moisture to chemically treated hair
• Mild surfactants that remove build-up without aggressive color stripping

How should I use Nioxin System 3 for best performance?

Apply the cleanser to wet hair, gently massage into the scalp and hair for about one minute, then rinse thoroughly. For optimal thickness and scalp health, use daily with the System 3 Scalp Therapy Conditioner and the Scalp & Hair Treatment. Consistent application and following the three-step system provide the most reliable outcomes.

• Apply to wet hair, massage into scalp for 1 minute, then rinse
• Use daily or as directed by your stylist for sustained results
• Pair with System 3 conditioner and topical treatment for a complete regimen

Who is this for: Nioxin System 3 is tailored for people with dry, chemically or color-treated hair showing early or light thinning who want a professional-grade cleanser that hydrates the scalp while reducing residue and improving the appearance of fullness. It suits users seeking salon-tested, daily-use products that prepare the scalp and strands for targeted thickening treatments without aggressive color loss.

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