NIOXIN Scalp + Hair Thickening System 1 Trial Size — For Natural/Untreated Hair, Niacinamide & Biotin, 1-Month Kit

Nioxin System 1 is a three-step scalp and hair thickening kit designed to strengthen natural, untreated hair and create the appearance of fuller, denser strands in as little as 30 days.

This compact, trial-size regimen from Nioxin targets light thinning by cleansing away follicle-clogging residues, restoring scalp balance and reinforcing hair against breakage. Formulated with niacinamide and biotin and developed from a skin-care-inspired approach, System 1 combines a purifier shampoo, lightweight conditioner and a leave-in scalp treatment to refresh the scalp and improve hair texture without weighing hair down.

How does System 1 help when my hair feels thin at the crown?

The kit focuses on scalp health and strand resilience where thinning often begins. By removing sebum and environmental buildup, it frees follicles and reduces factors that make hair look sparse; meanwhile, the conditioner and treatment help fortify shaft strength and boost surface volume.

• Step 1: Clarifying cleanser lifts away oil, debris and styling residue.
• Step 2: Lightweight conditioner balances moisture and strengthens strands.
• Step 3: Leave-in scalp treatment increases hair body and refreshes the scalp.
• Formulated with niacinamide and biotin to support hair texture and manageability.

Will this kit work in just a month?

Many users report visible improvements within 30 days when using the full three-step system as directed. Trial-size supplies are intended for one month of consistent use so you can evaluate texture, fullness and scalp comfort before committing to a longer supply.

• One-month trial quantities for daily or regular use.
• Clinically and dermatologically tested formula designed for measurable texture changes.
• Use all three steps in sequence for optimal results: cleanse, condition, treat.

How should I use each step for best results?

Follow the three-step sequence for the most reliable outcome: cleanse the scalp thoroughly, apply conditioner from roots to ends and rinse, then shake and apply the leave-in scalp and hair treatment directly to the scalp—do not rinse it out. Consistent application maximizes the product blend's ability to lift residue, add body and strengthen hair against breakage.

• Step 1: Massage Nioxin cleanser into wet scalp and hair, then rinse well.
• Step 2: Apply conditioner focusing on lengths and ends; rinse thoroughly.
• Step 3: Apply the leave-in treatment to the scalp, massage, and leave it in.
• Repeat routine regularly and pair with Nioxin Intensive Care products if desired.

What makes System 1 different from ordinary shampoos and conditioners?

Nioxin's system is built around scalp-focused care rather than only hair surface cleaning. It removes residue that can block follicles, provides lightweight conditioning that preserves lift and includes a targeted scalp treatment to increase perceived density—an approach rooted in salon-grade thinning-hair science rather than everyday cleansing alone.

• Specifically formulated for natural, untreated hair with light thinning.
• Skin-care-inspired technology treats scalp like facial skin to support a healthy base.
• Award-winning professional brand with decades of experience in thinning hair care.

Who is this for: Nioxin System 1 Trial Kit is aimed at people with natural, untreated hair who notice light thinning or reduced strand fullness and want a compact, salon-grade starter routine. It suits those seeking a non-heavy, scalp-focused regimen that strengthens hair against breakage while improving volume and scalp cleanliness. If you have chemically treated, colored or permed hair, consider the Nioxin system formulated specifically for treated hair types.

Ingredients

NIOXIN® SHAMPOO: 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 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