NIOXIN Scalp + Hair Thickening Conditioner System 1 — 16.9 fl oz, Lightweight Daily Strengthening with Niacinamide & Biotin

Nioxin System 1 Scalp Therapy Conditioner is a lightweight, density-protecting conditioner formulated to strengthen natural hair with light thinning while helping maintain scalp moisture balance. Nioxin System 1 Conditioner is the second step in a targeted three-part regimen designed for natural or untreated hair showing light thinning. The professional-grade formula uses BioAMP technology plus niacinamide and biotin to fortify strands, detangle, and support a healthier scalp environment without weighing hair down. This 16.9 fl oz salon-size bottle offers daily use convenience and pairs with Nioxin System 1 Cleanser Shampoo and Scalp & Hair Treatment for a complete routine.

How does this conditioner support both hair and scalp health?

The conditioner targets the needs of fine, natural hair with light thinning by delivering lightweight moisture and strengthening ingredients directly to the scalp and hair shaft. It helps reduce breakage and improves manageability so hair looks fuller and feels more resilient after regular use.

• Contains BioAMP technology to amplify hair structure and resilience.
• Includes niacinamide and biotin to help support hair strength and surface health.
• Lightweight emollients hydrate without heavy buildup.
• Designed to be used daily as part of the System 1 regimen for visible improvement.

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

Visible improvements in texture and the appearance of fullness are typically reported within weeks when used consistently with the System 1 shampoo and treatment. Individual results vary, but clinical and consumer feedback supports increased thickness perception and improved hair density appearance with routine use.

• Consumer-reported benefits include thicker-looking hair and increased fullness.
• Designed for visible benefits in as soon as 30 days when used as directed.
• Helps reduce breakage to support the look of fuller hair over time.
• Gentle formulation suitable for daily use to maintain scalp balance.

How should I use the Nioxin System 1 Conditioner for best effect?

Apply after shampooing with Nioxin System 1 Cleanser Shampoo. Distribute the conditioner evenly over the scalp and through the lengths, leave on for 1–3 minutes, then rinse thoroughly. Use every day or as recommended by your stylist for integrated care with other System 1 products.

• Step 2 of a three-step Nioxin System 1 routine—use after cleansing.
• Massage into scalp and hair to ensure even coverage and absorption.
• Leave on 1–3 minutes before rinsing to hydrate and strengthen.
• Pair with System 1 treatment for targeted density protection.

Is this product safe for colored or chemically treated hair?

Nioxin System 1 is formulated for natural or untreated hair with light thinning; it is lightweight and focuses on scalp health. If your hair is color-treated or chemically processed, consult product labeling or a stylist to confirm compatibility and choose the most appropriate Nioxin system for your hair condition.

• Designed specifically for natural, untreated hair with light thinning.
• Lightweight formula minimizes risk of weighing hair down.
• Consult a stylist for use on color-treated or chemically altered hair.
• Works best when matched to the correct Nioxin system number for your hair/scalp profile.

Who is this for? Nioxin System 1 Scalp Therapy Conditioner is built for people with fine, natural hair experiencing light thinning who want a salon-grade, lightweight conditioner that supports scalp health and strengthens hair. Ideal for daily users seeking to improve manageability, reduce breakage, and enhance the appearance of fullness when used with the rest of the System 1 regimen. If you have chemically treated or heavily processed hair, check the product guidance or choose a Nioxin system tailored to your specific hair and scalp needs.

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

FAQ

Q: Can I use Nioxin System 1 Conditioner every day?

A: Yes. System 1 Conditioner is formulated for daily use; apply after shampooing, leave 1–3 minutes, then rinse for best results.

Q: Does this conditioner work with colored hair?

A: System 1 is intended for natural, untreated hair. Consult product guidance or a stylist before using on color-treated or chemically processed hair.