NIOXIN Scalp + Hair Thickening System 1 for Natural or Untreated Hair — Full Size 3-Month Supply with Niacinamide & Biotin

Nioxin System 1 is a three-step scalp and hair thickening regimen formulated to strengthen natural, untreated hair with light thinning and deliver fuller-looking strands in as little as 30 days.

This complete kit combines a clarifying cleanser, a lightweight conditioner and a leave-in scalp and hair treatment to refresh the scalp, remove residue and fortify hair against breakage. Built on a skin-care-inspired approach, the System 1 formula targets the scalp environment as the foundation for visible volume and improved strand resilience without altering your hair’s natural texture or color.

How does the Nioxin System 1 kit improve hair fullness?

The kit works by removing follicle-clogging sebum and environmental buildup while delivering ingredients that support strand strength and texture. Cleaner follicles and strengthened hair shafts create the appearance of increased density and lift at the roots.

• Step 1: Cleanser shampoo lifts away sebum, oils and pollutants that can weigh hair down.
• Step 2: Lightweight conditioner adds manageability and resilience without flattening volume.
• Step 3: Leave-in scalp and hair treatment boosts root body and visible thickness.

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

Clinical testing and consumer studies show many users notice thicker, fuller hair and increased density within about 30 days of regular use. Results depend on consistent application and proper use of each step in the regimen.

• Visible texture and fullness reported by a high percentage of users in one month.
• Strengthening action reduces breakage—helping maintain hair length and body.
• Continued use supports ongoing scalp freshness and cumulative improvement in volume.

Which ingredients and benefits are included in this system?

System 1 features targeted actives and nutrients designed to support scalp cleanliness, hair strength and shine without harsh residue. Key components like niacinamide and biotin contribute to a healthier-looking scalp and improved strand integrity.

• Niacinamide helps support scalp condition and manage oil balance.
• Biotin and strengthening agents reinforce hair fibers to help reduce breakage.
• Botanical extracts and antioxidants refresh the scalp while improving shine.

How do I use each step for best outcomes?

Follow the three-step protocol consistently: cleanse, condition, then apply the leave-in treatment. Each step is formulated to build on the previous one so the scalp stays healthy and hair appears fuller from root to tip.

• Step 1: Massage Cleanser Shampoo into wet hair and scalp; rinse thoroughly to remove buildup.
• Step 2: Apply Scalp Therapy Conditioner from scalp to ends, leave briefly, then rinse for added resilience.
• Step 3: Shake Scalp & Hair Treatment, apply directly to the scalp—do not rinse—to boost volume and refresh the scalp.

Who is this for: Nioxin System 1 is designed for people with natural, untreated hair showing light thinning who want a professional-strength, salon-formulated regimen to improve scalp health and create the appearance of thicker, fuller hair. It’s suitable for users seeking a non-color-altering solution that emphasizes scalp cleansing, reduced breakage and root lift. Those with chemically treated or significantly thinning hair should consider the System number that corresponds to their specific hair type or consult a professional for personalized recommendations.

Ingredients

CLEANSER: Aqua, Sodium Laureth Sulfate, Sodium Lauryl Sulfate, Cocamidopropyl Betaine, Sodium Citrate, Sodium Xylenesulfonate, Sodium Chloride, Cocamide MEA, Sodium Benzoate, Citric Acid, Salicylic Acid, Mentha Piperita Oil, Mentha Arvensis Leaf Oil, Menthol, Tetrasodium EDTA, Sodium Hydroxide, Methylparaben, Propylene Glycol, 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, CI 42090, Faex Extract, Acer Saccharum Extract, Citrus Limon Peel Extract, Saccharum Officinarum Extract, Vaccinium Myrtillus Leaf Extract, Citrus Aurantium Dulcis Fruit Extract, Potassium Sorbate CONDITIONER: 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 HAIR & SCALP TREATMENT: Aqua, Niacinamide, Caffeine, Phenoxyethanol, Sodium Benzoate, Benzyl Alcohol, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Polysorbate 60, Polysorbate 80, Acetamide MEA, Triethanolamine, Propylene Glycol, PEG-23M, Tetrasodium EDTA, Methyl Nicotinate, Parfum, PEG-30 Dipolyhydroxystearate, Mentha Piperita Oil, Mentha Arvensis Leaf Oil, Menthol, Trideceth-6, Camellia Sinensis LeafExtract, Limonene, Silica, Cystine Bis-PG-Propyl Silanetriol, Biotin, Lecithin, 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, Potassium Sorbate