What is it: System Kit 4 is designed for color-treated hair with progressed thinning. Clinically and dermatologically tested.
Why you'll love it: It helps to refresh the scalp and increase the volume of every strand, leaving your hair looking fuller and thicker.
Featured ingredients: Delivers essential nutrients and antioxidants to the scalp, nourishing and protecting it against damage. This treatment contains UV protecting ingredients for the scalp and hair.
Real Results
85% of consumers noticed a thickening effect with our hair thickening products
80% noticed an increase in hair density
80% noticed an increase in hair fullness
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.
Aqua/Water/Eau, Niacinamide, Phenylbenzimidazole Sulfonic Acid, Caffeine, Polysorbate 20, Benzophenone-4, Phenoxyethanol, Sodium Benzoate, PEG-12 Dimethicone, Benzyl Alcohol, Sodium Hydroxide, Cocamidopropyl Betaine, Acetamide MEA, Tetrasodium EDTA, Propylene Glycol, 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, Lecithin, Tocopheryl Acetate, Biotin, Foeniculum Vulgare (Fennel) Fruit Extract, Silica, Citrus Limon (Lemon) Peel Extract, Saccharum Officinarum/Sugar Cane Extract/Extrait de canne à sucre, Acer Saccharum (Sugar Maple) Extract, Vaccinium Myrtillus Leaf Extract, Citric Acid, Faex Extract/Yeast Extract/Extrait de levure, Propylparaben, Citrus Aurantium Dulcis (Orange) Fruit Extract, Maltodextrin, Methylparaben, Potassium Sorbate, Ethylparaben, Butylparaben, BHT.
- Thickens the hair: clinically designed to add thickness and fullness to dry, damaged, color-treated hair with progressed thinning, with visible results in just 30 days
- Supports scalp health: gently cleanses the scalp, removing impurities and excess sebum that can clog hair follicles, creating a healthier environment for the scalp
- Reduces hair thinning: helps minimize hair breakage, promoting the appearance of fuller, thicker hair while protecting the hair color
- Nourishes the scalp: infused with antioxidants and UV protecting ingredients, this treatment can nourish and revitalize the scalp, improving its overall health and condition
- Apply Nioxin System 4 Scalp + Hair Thickening Treatment to towel-dried hair, focusing on the scalp and areas of concern.
- Massage gently to ensure even distribution.
- Do not rinse out. Style as desired.
- For optimal results, use alongside Nioxin System 4 Scalp + Hair Shampoo and Conditioner.
We recommend using the complete system at least 3 times a week for visible results in 30 days.





