NIOXIN Scalp + Hair Thickening System 3 Trial Kit — For Colored/Damaged Hair, 1-Month Supply with Niacinamide & Biotin

Nioxin Scalp + Hair Thickening System 3 is a three-step trial kit formulated to help visibly thicken and strengthen dry, color-treated hair with light thinning.

This one-month trial set contains a targeted shampoo, conditioner, and leave-in thickening treatment designed to improve hair resilience and scalp condition. The formulas combine niacinamide, biotin and caffeine with antioxidants and botanicals to cleanse away buildup, restore moisture balance and deliver nutrients to the scalp and strands. It’s a daily regimen created to increase hair body while helping maintain color-treated hair.

How does this kit add volume to thin, damaged colored hair?

The Nioxin System 3 products work together to remove residue that can weigh hair down, reinforce the strand and deliver a leave-on treatment that boosts strand diameter and lift. The combined action of cleansing, conditioning and topical treatment helps create thicker-looking hair without heavy silicones.

• Gentle clarifying shampoo removes sebum and environmental buildup.
• Conditioner restores moisture and reduces breakage.
• Leave-in treatment targets the scalp to increase strand volume and manageability.
• Niacinamide, biotin and caffeine support healthier-looking hair shaft appearance.

What is the daily routine for using System 3?

Use the three steps in sequence—shampoo, conditioner, then the leave-in thickening treatment—every time you wash. Follow directions: lather shampoo for about a minute, leave conditioner 1–3 minutes, and apply the treatment to the scalp, massaging it in without rinsing.

• Apply shampoo to wet hair, massage scalp 60 seconds, rinse thoroughly.
• Distribute conditioner through hair and scalp, leave 1–3 minutes, rinse.
• Shake and apply the leave-in treatment across the scalp; do not rinse.
• For best results, use daily as part of your routine for up to 30 days to evaluate visible change.

Will this kit protect my color-treated hair and reduce breakage?

System 3 is formulated specifically for colored hair that’s dry or damaged and experiencing light thinning. The conditioning and strengthening ingredients help improve hair elasticity and resilience while minimizing factors that contribute to breakage and color fading.

• Conditioning agents restore moisture and reduce friction-related breakage.
• Antioxidants and UV-protecting ingredients help shield hair from environmental stressors.
• Leave-in treatment nourishes the scalp to support healthier-looking hair from the root.

Who is this for? Nioxin Scalp + Hair Thickening System 3 is intended for people with dry, damaged, color-treated hair who notice light thinning or reduced volume. It’s suited to those seeking a non-styling, daily haircare regimen that targets scalp cleanliness, strengthens strands and enhances the appearance of fullness without weighing hair down. If you want a trial-sized, dermatologist-tested set to evaluate thicker-looking results over a month, this kit provides an easy-to-follow three-step approach.

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.