NIOXIN Scalp + Hair Thickening Conditioner 16.9 fl oz — Lightweight for Natural/Untreated Hair with Niacinamide & Biotin

Nioxin System 1 Scalp + Hair Thickening Conditioner is a lightweight, salon-grade conditioner formulated to strengthen natural or untreated hair with light thinning while supporting a healthier scalp environment.

This conditioner is the second step in Nioxin's three-part System 1 regimen, created to add resilience and manageability to fine, natural hair showing early signs of thinning. The formula blends moisturizing agents with Nioxin's BioAMP technology plus nutrients like niacinamide and biotin to help hair appear fuller and less prone to breakage when used regularly with the matching cleanser and treatment.

How does this conditioner help hair feel thicker without weighing it down?

The System 1 conditioner is formulated to hydrate without heavy residue, so fine strands gain body and improved texture. Lightweight conditioning agents smooth and reinforce the hair shaft, making individual hairs appear more substantial while preserving natural movement.

• BioAMP technology strengthens hair structure and amplifies thickness.
• Lightweight humectants provide moisture balance without buildup.
• Niacinamide and biotin support visible hair texture and resiliency.

What is the right way to use this conditioner in a daily routine?

Apply after cleansing with Nioxin System 1 Cleanser Shampoo for best results. Distribute the conditioner across the scalp and strands, leave on for 1–3 minutes, then rinse thoroughly; consistent daily use yields the most reliable cosmetic benefits.

• Use as step two after the matching System 1 shampoo.
• Massage onto scalp and through mid-lengths to ends for 1–3 minutes.
• Rinse well and follow with the Scalp & Hair Treatment if desired.

Which hair and scalp concerns does this product target?

This conditioner is aimed at fine, natural or untreated hair with light thinning where density and scalp condition are priorities. It focuses on improving the look and feel of hair by reducing breakage and supporting a cleaner scalp environment rather than treating medical causes of hair loss.

• Designed for fine, natural or untreated hair with light thinning.
• Helps reduce breakage by strengthening hair fibers.
• Supports scalp cleanliness to help maintain a healthy foundation for hair appearance.

When should I expect to see results and how does it perform with styling?

Visible cosmetic improvements in fullness and manageability are often reported within weeks of consistent use, especially when paired with the full System 1 kit. The lightweight conditioning allows styling tools and products to work effectively without excess slip or weight.

• Users commonly notice improved thickness appearance in about 30 days when used as directed.
• Compatible with everyday styling, blow-drying, and thermal tools.
• Leaves hair conditioned and primed for styling without greasy finish.

Who is this for: Nioxin System 1 Scalp + Hair Thickening Conditioner is intended for people with fine, natural or untreated hair experiencing light thinning who want salon-level conditioning that supports the appearance of fuller, stronger-looking hair. It is best for those seeking a lightweight product to use daily within a targeted scalp and hair care routine, and for anyone who prefers formulations that prioritize scalp health and hair resilience without heavy silicones or residue.

Ingredients

Aqua, Cetyl Alcohol, Stearamidopropyl Dimethylamine, Quaternium-18, Stearyl Alcohol, Bis-Aminopropyl Dimethicone, Hydroxyethylcellulose, Phenoxyethanol, Benzyl Alcohol, Cetearyl Alcohol, Mentha Piperita Oil, Mentha Arvensis Leaf Oil, Menthol, Glyceryl Stearate, Oleyl Alcohol, Methylparaben, PEG-2M, Propylparaben, Polysorbate 60, EDTA, Propylene Glycol, Citric Acid, Limonene, Camellia Sinensis Leaf Extract, Silica, Cystine Bis-PG-Propyl Silanetriol, Biotin, Lecithin, Niacinamide, Panthenol, Tocopheryl Acetate, Citrus Paradisi Peel Extract, Humulus Lupulus Flower Extract, Urtica Dioica Leaf Extract, Faex Extract, BHT, 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