NIOXIN System 4 Scalp Therapy Conditioner — Colored Dry Hair, Lightweight Thickening & Moisture-Balancing

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

This conditioner is the second step in NIOXIN’s three-part System 4 regimen, developed for color-treated hair showing signs of thinning. Built around BioAmp technology, the formula aims to replenish moisture balance, fortify weakened strands, and support scalp health without weighing hair down. It’s designed to work alongside the System 4 Cleanser and the Scalp & Hair Treatment to improve hair resilience and the appearance of density over time.

How does this conditioner help hair that’s been color-treated and is thinning?

NIOXIN System 4 Conditioner targets the specific needs of colored hair with progressed thinning by restoring moisture balance and strengthening each strand to resist breakage. The lightweight formulation avoids heavy buildup while enhancing the hair’s natural body so color-treated hair appears fuller and more vibrant.

• BioAmp technology helps retain moisture and reinforce hair structure.
• Lightweight hydration reduces frizz without flattening fine or thinning hair.
• Formulation protects color integrity while improving manageability.

What results can I expect and how quickly will I notice them?

Users commonly report improved thickness and fullness in weeks when the conditioner is used as part of the full System 4 routine. While individual results vary, visible improvements in texture and resilience are often observed with consistent daily use paired with the System 4 Cleanser and Scalp & Hair Treatment.

• Designed to amplify hair structure for a thicker look within weeks.
• Helps reduce breakage and support scalp cleanliness to promote healthier-looking hair.
• Clinically inspired outcomes reported by many consumers in trial settings.

How should I use this product for best results?

After cleansing with NIOXIN System 4 Cleanser Shampoo, apply the conditioner to the scalp and through the lengths of damp hair. Leave on for 1–3 minutes to allow active ingredients to penetrate, then rinse thoroughly; use daily as the second step in the three-part System 4 regimen for optimal performance.

• Step 1: Cleanse with System 4 Cleanser Shampoo.
• Step 2: Distribute conditioner onto scalp and hair, leave 1–3 minutes, rinse.
• Step 3: Finish with the System 4 Scalp & Hair Treatment for targeted support.

Is this conditioner suitable for sensitive scalps or daily use?

The conditioner is formulated to be gentle and lightweight, making it appropriate for daily use on many scalps, including those of people with color-treated, dry, thinning hair. Because scalp sensitivity varies, consider patch testing or consulting a professional if you have known scalp conditions or extreme sensitivity.

• Gentle enough for everyday use when paired with System 4 Cleanser.
• Designed to maintain scalp moisture balance while avoiding heavy residue.
• Recommended to follow product directions and consult a specialist for persistent scalp issues.

Who this is for: NIOXIN System 4 Scalp Therapy Conditioner is intended for people with color-treated hair experiencing progressed thinning and dryness who want a lightweight conditioner that strengthens strands, supports scalp health, and enhances the look of density. It’s best used as part of the full NIOXIN System 4 routine for consistent, salon-originated care.

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