NIOXIN Scalp + Hair Thickening Conditioner System 1, 16.9 fl oz — Light-thinning care with Niacinamide & Biotin

Nioxin System 1 Scalp Therapy Conditioner is a lightweight, professional conditioner formulated to strengthen and moisturize natural hair with light thinning while supporting scalp health.

This conditioner is the second step in Nioxin's three-part regimen designed for natural, untreated hair showing light thinning. The formula uses BioAMP technology alongside key actives like niacinamide and biotin to help improve hair resilience and maintain moisture balance without weighing hair down. It's meant to be used daily after cleansing with the matching System 1 cleanser and can be incorporated easily into a salon or home routine.

How does this conditioner help hair feel thicker and fuller?

The conditioner works by amplifying hair structure and strengthening strands to reduce the visual signs of thinning. It deposits lightweight conditioning agents that smooth the hair shaft, enhancing texture and the perception of density.

• BioAMP technology to reinforce hair fiber structure and improve manageability
• Niacinamide supports scalp surface condition for a healthy-looking base
• Biotin helps fortify hair against breakage for improved resilience
• Lightweight moisturizers avoid weighing fine hair down

When and how should I apply Nioxin System 1 Conditioner?

Use this conditioner immediately after shampooing with the System 1 cleanser for best compatibility. Apply to the scalp and hair, leave on for 1–3 minutes, then rinse thoroughly; daily use is recommended for consistent results.

• Apply after cleansing while hair is wet for even distribution
• Focus on the scalp and mid-lengths to ends to boost structure and moisture
• Leave on 1–3 minutes, then rinse to avoid buildup
• Pair with System 1 shampoo and Scalp & Hair Treatment for a complete routine

What results can I realistically expect and in what timeframe?

Users often notice improvements in hair texture, fullness, and manageability with regular use; some visible changes can appear within weeks when used as part of the full System 1 program. Individual outcomes vary depending on hair type and consistency of use.

• Improved hair fullness and thickness appearance reported by many users
• Enhanced moisture balance and reduced breakage for more resilient hair
• Cleaner, healthier-feeling scalp that supports styling and volume
• Best results when combined with other System 1 products

Is this conditioner suitable for my hair type and concerns?

This product is formulated specifically for natural or untreated fine hair with signs of light thinning. It’s crafted to be lightweight yet strengthening, so it suits fragile hair that needs moisture without added weight.

• Ideal for natural, non-chemically treated hair with light thinning
• Not formulated for severe thinning or chemically altered hair types
• Safe for daily use to maintain scalp cleanliness and hair structure
• Works best as part of the Nioxin System 1 regimen

Who is this for: Nioxin System 1 Scalp Therapy Conditioner is aimed at people with natural, untreated hair experiencing light thinning who want a salon-grade, lightweight conditioner to improve hair strength, manageability, and the appearance of density. If you need a product that supports scalp condition while adding moisture without heaviness, this conditioner fits into daily routines and pairs with other Nioxin System 1 products for a complete approach to thicker-looking hair.

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