Free standard shipping on any $35 purchase

Use the following zoom and pan buttons to control the image that follows them

Nioxin Scalp + Hair Thickening System 2 Leave on Treatment #1
Nioxin Scalp + Hair Thickening System 2 Leave on Treatment #1

Tab through the images or use the previous or next buttons to navigate each product image

NioxinScalp + Hair Thickening System 2 Leave on Treatment

Item 2623199

4.4 out of 5 stars. 773 reviewsQ & A
Size:6.7 oz


Nioxin Pro Clinical's System Kit 2 is designed for natural, untreated hair with progressed thinning. Clinically and dermatologically tested, the hair thickening treatment nourishes and strengthens each strand of hair from root to tip, resulting in thicker, fuller hair.



  • Thickens the hair: Nioxin System Kit 2 is clinically designed to add thickness and fullness to natural hair with progressed thinning, with visible results in just 30 days.
  • Nourishes the scalp: Infused with nourishing botanicals, antioxidants, and UV protecting ingredients, this kit's Scalp + Hair Thickening Treatment can nourish and revitalize the scalp, improving its overall health and condition.

Research Results

  • 85% of consumers noticed a thickening effect, 80% noticed an increase in hair density, 80% noticed an increase in hair fullness*


  • *Based on a survey among 230 U.S. panelists concerned about thinning hair who tried the systems (each tested 1 system kit), conducted by SIRS, 2016

How To Use

Apply the Scalp + Hair Thickening Treatment directly to the scalp. Shake it well before applying directly to the entire scalp. Gently massage it in. Do not rinse.

Pre-caution: Do not get into the eyes. Keep out of reach of children. For any questions or concerns about side effects, always consult a medical professional.


Aqua/Water/Eau, Niacinamide, Phenylbenzimidazole Sulfonic Acid, Caffeine, Polysorbate 20, Benzophenone-4, Phenoxyethanol, Sodium Benzoate, Benzyl Alcohol, PEG-12 Dimethicone, Sodium Hydroxide, Cocamidopropyl Betaine, Acetamide MEA, Propylene Glycol, Tetrasodium EDTA, Methyl Nicotinate, Mentha Arvensis Leaf Oil, Parfum/Fragrance, Polysorbate 80, Polysorbate 60, PEG-23M, Mentha Piperita (Peppermint) Oil, Limonene, Camellia Sinensis Leaf Extract, Cystine Bis-PG-Propyl Silanetriol, Tocopheryl Acetate, Lecithin, Biotin, Citrus Paradisi (Grapefruit) Peel Extract, Humulus Lupulus (Hops) Flower Extract, Urtica Dioica (Nettle) Leaf Extract, Silica, Citric Acid, Vaccinium Myrtillus Leaf Extract, Acer Saccharum (Sugar Maple) Extract, Citrus Limon (Lemon) Peel Extract, Saccharum Officinarum/Sugar Cane Extract/Extrait de canne à sucre, Faex Extract/Yeast Extract/Extrait de levure, Propylparaben, Citrus Aurantium Dulcis (Orange) Fruit Extract, Potassium Sorbate, Maltodextrin, Methylparaben, Ethylparaben, Butylparaben, BHT