Nioxin Scalp + Hair Thickening Conditioner System 2 — For Natural or Untreated Hair, 10.1 fl oz, Biotin & Niacinamide

This conditioner is the second step in Nioxin’s three-part regimen and is formulated to improve hair resilience and the appearance of density without weighing strands down. Infused with targeted ingredients like biotin and niacinamide and built on BioAMP technology, it supports scalp health while helping hair feel fuller and more manageable. Use it daily after the matching cleanser for optimal results.

How does this conditioner help hair that’s thinning?

System 2 focuses on fortifying weakened hair fibers and balancing moisture so strands resist breakage and look thicker. It does not change your hair type but works to improve the visible body and texture of natural, untreated hair with progressed thinning.

• Strengthening BioAMP technology to reinforce hair structure
• Niacinamide to support scalp barrier condition and texture
• Biotin and moisturizing agents to reduce dryness and breakage
• Lightweight formula that avoids flattening fine or thinning hair

What is the correct way to use Nioxin System 2 Conditioner?

Apply the conditioner after cleansing with the System 2 cleanser while hair is wet. Work through scalp and lengths, leave on for one to three minutes, then rinse thoroughly; daily use as part of the full three-step system gives the most consistent visible benefits.

• Use after Nioxin System 2 Cleanser Shampoo for best compatibility
• Distribute from roots to ends, focusing on areas of thinning
• Leave in for 1–3 minutes to allow actives to absorb
• Rinse fully and follow with System 2 Scalp & Hair Treatment

Which ingredients should I expect and what do they do?

The formula combines proven salon-grade actives with lightweight conditioning agents to protect and support the scalp and hair. Ingredients are selected to reduce fragility and help hair maintain moisture balance without heavy residues.

• Niacinamide: helps support scalp comfort and surface condition
• Biotin: contributes to hair strength and resilience
• Lightweight emollients: condition without weighing hair down
• Antioxidant botanicals and UV-protecting agents: protect hair surface

Who is this for? Nioxin System 2 Scalp + Hair Thickening Conditioner is made for people with natural or untreated hair experiencing progressed thinning who want a salon-quality conditioner that supports scalp health and enhances the look of fullness. It is particularly suited to those following Nioxin’s three-step regimen, seeking daily, non-greasy moisture, and wanting a product that strengthens hair structure while keeping styling options open.

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