NIOXIN Scalp + Hair Thickening System 3 Trial Kit — For Color‑Treated Hair with Biotin

NIOXIN Scalp + Hair Thickening System 3 is a three-step daily regimen that helps visibly thicken and strengthen dry, color-treated hair with light thinning.

Designed for color-treated, damaged hair showing early signs of thinning, this trial-size System 3 kit combines a cleansing shampoo, a moisture-balancing conditioner, and a leave-in thickening treatment. The formula blends niacinamide, biotin and caffeine with antioxidants and botanicals to cleanse follicles, reinforce strands and protect color while improving scalp condition. Clinically and dermatologically tested, users report visible fuller-looking hair in about 30 days when used consistently.

How does this kit improve the look and feel of thin, colored hair?

The System 3 regimen targets the scalp environment and hair fiber to create the appearance of fuller, stronger hair. The shampoo removes residue and excess sebum, the conditioner restores moisture and reduces breakage, and the leave-in treatment delivers nutrients directly to the scalp and strand roots.

• Shampoo: deep-cleanses for a clearer scalp surface and follicle area.
• Conditioner: seals moisture and shields hair from mechanical damage.
• Thickening treatment: leave-in formula adds volume and helps reduce visible thinning.

What ingredients are responsible for thicker-looking hair?

Key actives in this system—niacinamide, biotin and caffeine—work together to support healthy scalp appearance and strengthen the hair shaft. Antioxidants and botanicals complement these actives to help maintain hair condition and protect color-treated strands from environmental stressors.

• Niacinamide: helps improve scalp condition and supports hair resilience.
• Biotin: contributes to stronger-feeling hair strands and reduced breakage.
• Caffeine: formulated to invigorate the scalp and support a refreshed scalp feel.
• UV-protecting ingredients and antioxidants: help preserve color and reduce environmental damage.

How do I use each step for best daily results?

Use the three steps in sequence every day for optimal outcomes. Start with the shampoo, follow with the conditioner, and finish with the leave-in thickening treatment applied directly to the scalp—no rinsing required.

• Wet hair and massage shampoo into scalp and hair for about one minute, then rinse thoroughly.
• Apply conditioner evenly to hair and scalp, leave 1–3 minutes, then rinse.
• Shake the treatment, apply across the entire scalp, gently massage in, and do not rinse.

When can I expect to see visible changes?

While individual results vary, consistent daily use of the full System 3 kit has produced visible fuller-looking hair for many users within roughly 30 days. Improvements are most noticeable when all three products are used together and maintained as part of a regular routine.

• Daily regimen increases the chance of quicker visible results.
• Combining cleansing, conditioning, and a leave-in treatment addresses both scalp and strand concerns.
• Trial size provides approximately one month of product for evaluation.

Who is this for? NIOXIN System 3 Trial Size is made for people with dry, damaged or color-treated hair experiencing light thinning who want a targeted kit to help hair look thicker and feel stronger. It's suitable for those seeking a dermatologically tested, three-step daily routine that prioritizes scalp cleansing, strand reinforcement and color protection without heavy residue. Ideal as a one-month trial before committing to full-size products or for travelers wanting an effective, compact hair-thickening solution.

Ingredients

SYSTEM KIT 3 SHAMPOO: Aqua/Water/Eau, Sodium Laureth Sulfate, Sodium Lauryl Sulfate, Sodium Chloride, PPG-2 Hydroxyethyl Coco/Isostearamide, Citric Acid, Salicylic Acid, Mentha Arvensis Leaf Oil, Mentha Piperita (Peppermint) Oil, Tetrasodium EDTA, Trisodium Ethylenediamine Disuccinate, Methylparaben, Polyquaternium-10, Propylene Glycol, Sodium Benzoate, Sodium Hydroxide, Limonene, Camellia Sinensis Leaf Extract, Cystine Bis-PG-Propyl Silanetriol, Niacinamide, Panthenol, Biotin, Lecithin, Tocopheryl Acetate, Foeniculum Vulgare (Fennel) Fruit Extract, Blue 1 (CI 42090), Acer Saccharum (Sugar Maple) Extract, Citrus Limon (Lemon) Peel Extract, Saccharum Officinarum/Sugar Cane Extract/Extrait de canne à sucre, Vaccinium Myrtillus Leaf Extract, Faex Extract/Yeast Extract/Extrait de levure, Propylparaben, Phenoxyethanol, Citrus Aurantium Dulcis (Orange) Fruit Extract, Maltodextrin, Potassium Sorbate, Sodium Citrate, Ethylparaben, Butylparaben, Sodium Xylenesulfonate. SYSTEM KIT 3 CONDITIONER: Aqua/Water/Eau, Stearyl Alcohol, Behentrimonium Chloride, Cetyl Alcohol, Isopropyl Alcohol, Benzyl Alcohol, Mentha Arvensis Leaf Oil, Mentha Piperita (Peppermint) Oil, Phenoxyethanol, Propylene Glycol, Quaternium-80, Methylparaben, Propylparaben, EDTA, Limonene, Camellia Sinensis Leaf Extract, Polysorbate 20, Niacinamide, Panthenol, Biotin, Lecithin, Tocopheryl Acetate, Foeniculum Vulgare (Fennel) Fruit Extract, Acer Saccharum (Sugar Maple) Extract, Citrus Limon (Lemon) Peel Extract, Saccharum Officinarum/Sugar Cane Extract/Extrait de canne à sucre, Vaccinium Myrtillus Leaf Extract, Faex Extract/Yeast Extract/Extrait de levure, Hydrolyzed Silk, Citrus Aurantium Dulcis (Orange) Fruit Extract, Aleurites Moluccanus Seed Oil, Maltodextrin, Potassium Sorbate, Sodium Benzoate SYSTEM KIT 3 TREATMENT: Aqua/Water/Eau, Niacinamide, Caffeine, Phenoxyethanol, Sodium Benzoate, Benzyl Alcohol, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Polysorbate 80, Polysorbate 60, Acetamide MEA, Triethanolamine, PEG-23M, Tetrasodium EDTA, Propylene Glycol, Methyl Nicotinate, Parfum/Fragrance, Mentha Arvensis Leaf Oil, Mentha Piperita (Peppermint) Oil, PEG-30 Dipolyhydroxystearate, Trideceth-6, Limonene, Camellia Sinensis Leaf Extract, Silica, Cystine Bis-PG-Propyl Silanetriol, Biotin, Tocopheryl Acetate, Lecithin, Foeniculum Vulgare (Fennel) Fruit Extract, Acer Saccharum (Sugar Maple) Extract, Citrus Limon (Lemon) Peel Extract, Saccharum Officinarum/Sugar Cane Extract/Extrait de canne à sucre, Vaccinium Myrtillus Leaf Extract, Faex Extract/Yeast Extract/Extrait de levure, Propylparaben, Citrus Aurantium Dulcis (Orange) Fruit Extract, BHT, Maltodextrin, Methylparaben, Potassium Sorbate, Ethylparaben, Butylparaben.