NIOXIN Thickening Conditioner for Color-Treated Dry Hair — System 4, Lightweight Hydration

NIOXIN System 4 Scalp Therapy Conditioner is a lightweight, moisture-balancing conditioner made to strengthen color-treated hair with progressed thinning and leave it looking thicker and fuller.

Designed as the second step in NIOXIN's three-part system, this conditioner uses BioAMP technology to help retain moisture balance while improving hair resilience. It targets color-treated, dry hair that has experienced noticeable thinning, delivering hydration without weighing strands down. Regular use after cleansing helps amplify hair structure and supports a healthier scalp environment that complements NIOXIN cleansers and topical treatments.

How does this conditioner help color-treated hair with thinning?

The formula is developed specifically for hair that has been chemically treated and shows progressed thinning. It delivers lightweight hydration to prevent further fragility while supporting thicker, fuller-looking hair appearance over time.

• BioAMP technology helps retain moisture balance and improve strand resilience
• Nourishing botanicals and antioxidants protect and revitalize treated hair
• Lightweight texture avoids flattening fine or thinning strands
• Safe to use in a system with NIOXIN System 4 cleanser and treatment

What results can I expect and when will I see them?

Visible improvement in hair thickness and fullness is reported by many users after continued use; NIOXIN systems are designed to show noticeable changes within weeks when used consistently. Results depend on hair condition, frequency of use, and adherence to the three-step regimen.

• Consumers report increases in perceived thickness, fullness, and density
• Designed to reduce breakage by strengthening hair resilience
• Best effects seen when used every day following the System 4 cleanser
• For optimal maintenance, pair with the Scalp & Hair Treatment in the kit

How do I use NIOXIN System 4 Conditioner in my routine?

Use this conditioner as the second step after shampooing with NIOXIN System 4 Cleanser. Apply to scalp and along the hair, leave on for 1–3 minutes, then rinse thoroughly to maintain moisture without excess build-up.

• Use daily after shampooing for consistent scalp and hair support
• Distribute evenly from scalp to ends and massage gently into the scalp
• Leave in 1–3 minutes to allow BioAMP technology to work, then rinse
• Follow with NIOXIN Scalp & Hair Treatment for a complete three-step regimen

Is this safe for colored hair and sensitive scalps?

The formula is tailored for color-treated hair, helping maintain vibrancy while addressing thinning. It is formulated to support scalp health, but individuals with specific sensitivities should patch-test or consult a professional if unsure.

• Specifically designed for colored hair with progressed thinning
• Lightweight, non-greasy conditioner suitable for daily use
• Includes botanical nourishment and UV-protecting ingredients for added care
• Recommended in combination with the System 4 shampoo and treatment

Who is this for: NIOXIN System 4 Scalp Therapy Conditioner is intended for people with color-treated, dry hair experiencing progressed thinning who want a salon-grade, lightweight conditioner that supports a fuller-looking appearance. It’s best for those committed to a three-step NIOXIN routine and seeking improved scalp condition, reduced breakage, and moisture balance without weighing hair down.

Ingredients

Aqua, Cetyl Alcohol, Stearamidopropyl Dimethylamine, Stearyl Alcohol, Quaternium-18, Phenoxyethanol, Benzyl Alcohol, Cetearyl Alcohol, Hydroxypropyl Guar, Bis-Aminopropyl Dimethicone, Glyceryl Stearate, Oleyl Alcohol, Methylparaben, Propylparaben, Polysorbate 60, Mentha Piperita Oil, Mentha Arvensis Leaf Oil, Menthol, EDTA, Hydroxyethylcellulose, Citric Acid, Propylene Glycol, Camellia Sinensis Leaf Extract, Cystine Bis-PG-Propyl Silanetriol, Biotin, Lecithin, Niacinamide, Panthenol, Tocopheryl Acetate, Foeniculum Vulgare Fruit Extract, Faex Extract, Acer Saccharum Extract, Citrus Limon Peel Extract, Saccharum Officinarum Extract, Vaccinium Myrtillus Leaf Extract, Citrus Aurantium Dulcis Fruit Extract, CI 42090, Potassium Sorbate, Sodium Benzoate