NIOXIN System 2 Scalp + Hair Thickening Conditioner for Natural/Untreated Hair — 16.9 fl oz, with Biotin & Niacinamide

Nioxin System 2 Scalp + Hair Thickening Conditioner is a lightweight, moisture-balancing conditioner formulated to strengthen and visibly thicken natural or untreated hair experiencing progressed thinning.

This conditioner is the second step in Nioxin's three-part System 2 regimen, created for natural or untreated hair with advanced thinning. It combines BioAmp technology with niacinamide and biotin to improve hair resilience and help hair appear fuller while maintaining a comfortable scalp environment. The formula is salon-developed and intended for daily use after cleansing to complement the System 2 Cleanser Shampoo and Scalp & Hair Treatment.

How does this conditioner make hair look fuller?

The formula works to amplify hair structure and strengthen individual strands so they resist breakage and better hold body. Regular use helps improve the visual density of hair by conditioning the scalp and hair shaft, which supports an overall thicker appearance.

• BioAmp technology enhances hair structure for added body
• Niacinamide helps maintain a healthy scalp environment
• Biotin-rich support to increase strand resilience
• Lightweight texture avoids weighing hair down

What results can I expect and how quickly?

Many users notice improved fullness and strength with consistent daily use, with visible differences reported within weeks when used as part of the full System 2 kit. Results depend on individual hair condition and follow-through with the three-step regimen.

• Designed to show visible improvement in hair fullness over time
• Helps reduce breakage that can make hair appear thinner
• Works best combined with System 2 shampoo and treatment
• Daily application sustains moisture balance and resilience

How should I use this conditioner in my routine?

Use System 2 Conditioner after shampooing with the System 2 Cleanser. Apply to the scalp and hair, leave on for 1–3 minutes to allow active ingredients to work, then rinse thoroughly. For optimal outcomes, follow with the System 2 Scalp & Hair Treatment and maintain a daily schedule.

• Step 2 of a three-part System 2 regimen
• Apply to scalp and through the length of hair after cleansing
• Leave 1–3 minutes, then rinse well
• Use daily or as directed by a professional stylist

Is this conditioner suitable for my scalp and hair type?

System 2 is formulated specifically for natural or untreated hair with progressed thinning, focusing on scalp health and strand fortification rather than chemical-treated hair. The lightweight, non-greasy formula aims to retain moisture balance without leaving residue that can weigh fine hair down.

• Targeted for natural/untreated hair with advanced thinning
• Light moisturizer that preserves volume and body
• Supports scalp health to create a favorable growth environment
• Developed by a brand experienced in thinning-hair care

Who is this for: Nioxin System 2 Scalp + Hair Thickening Conditioner is best for people with natural or untreated hair experiencing progressed thinning who want a salon-formulated, lightweight conditioner that strengthens strands, helps reduce breakage, and enhances the look of fullness. It suits daily routines and those committed to using a coordinated three-step system for visible thicker-looking hair.

Ingredients

Aqua, Cetyl Alcohol, Stearamidopropyl Dimethylamine, Stearyl Alcohol, Quaternium-18, Phenoxyethanol, Benzyl Alcohol, Cetearyl Alcohol, Hydroxypropyl Guar, Glyceryl Stearate, Hydroxyethylcellulose, Oleyl Alcohol, Methylparaben, Propylparaben, Polysorbate 60,Mentha Piperita Oil, Mentha Arvensis Leaf Oil, Menthol, Bis-Aminopropyl Dimethicone, EDTA, Propylene Glycol, Citric Acid, Camellia Sinensis Leaf Extract, 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, 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