NIOXIN System 4 - hair care kit for fuller-looking hair, 300+300+100 ml

The three-product sequence addresses scalp cleanliness, moisture and resistance to breakage together. Salicylic acid in the shampoo helps remove excess sebum and build-up, the conditioner moisturises, and the leave-in treatment with niacinamide and caffeine complements root care. The system is designed for dry, damaged or coloured hair with progressed thinning.

Caring for gradually thinning hair requires both scalp cleansing and preservation of the hair fibre. The NIOXIN System 4 kit brings these tasks together in three consecutive steps for dry, damaged or coloured hair with progressed thinning. Shampoo is followed by a rinse-out conditioner and a leave-in scalp and hair treatment.

Peppermint and field mint oils complement the system's care formula. This kit contains 300 ml shampoo, 300 ml conditioner and 100 ml leave-in treatment, giving each care task its own product. Rinse out the first two products, but leave the third on the scalp and hair to maintain the full routine's sequence.

Hair care kit: key benefits

• Three complementary products in one kit.
• The shampoo cleanses hair and scalp of impurities and excess sebum, the skin's natural oil.
• The conditioner moisturises and helps strengthen hair against breakage.
• The leave-in treatment complements scalp care and supports fuller-looking hair.
• The system is tailored to dry, damaged or coloured hair with progressed thinning.

Who is this product for?

Suitable for dry, damaged or coloured hair with progressed thinning when you want a coordinated cleansing, moisturising and scalp care routine. The system helps reduce breakage and supports fuller-looking hair.

Key ingredients and their roles

• Salicylic acid in the shampoo: helps cleanse the scalp of dead skin cells, excess sebum and build-up.
• Niacinamide: a form of vitamin B3 that complements the system's care approach.
• Caffeine in the leave-in treatment: complement root and scalp care.
• Peppermint and field mint oils: characteristic conditioning ingredients in the system.

Additional properties

The leave-in treatment contains ingredients that help protect the scalp and hair against UV exposure.

How to use

• 1. Cleansing: apply the kit's shampoo to wet hair and scalp. Massage gently for about one minute and rinse thoroughly.
• 2. Moisturising: apply conditioner to the scalp and hair from roots to ends. Leave on for 1–3 minutes and rinse thoroughly.
• 3. Leave-in care: shake the third-step product before use, apply directly to the scalp and distribute through the hair from roots along the full length. Massage gently.
• Leave to work: do not rinse out the third product.
• Care frequency: use the complete three-step system at least three times a week.

Which NIOXIN products complement this routine?

• Night Density Rescue: for overnight scalp care with antioxidants.
• Hair Booster: for additional targeted care in areas with more noticeable thinning; apply before the system's leave-in treatment.

Product specifications

• Brand: NIOXIN
• Range: System 4
• Product type: three-step hair care kit
• Volume: 300+300+100 ml
• Hair type: dry, damaged or coloured hair
• Degree of thinning: progressed thinning
• Kit contents: 300 ml shampoo, 300 ml conditioner, 100 ml leave-in treatment
• Product code: 99350180582
• EAN / GTIN: 4064666844077

Product story

System 4 is designed for dry, damaged or coloured hair with more noticeable thinning. Its approach combines a fuller appearance with care for scalp and hair resilience. NIOXIN connects these needs in a structured routine where cleansing, conditioning and leave-in care complement one another.

The kit creates a three-step path from washing to leave-in care. The shampoo helps remove impurities and excess sebum, the conditioner moisturises and improves resistance to breakage, and the final treatment complements scalp care for fuller-looking hair. Each product has a clear place in the sequence.

This kit version includes 300 ml shampoo, 300 ml conditioner and 100 ml leave-in treatment. All three belong to System 4, keeping the routine focused on one goal. Choosing a system by hair type and degree of thinning gives everyday care a clear, repeatable order.

Frequently asked questions

What is included in the kit?

300 ml shampoo, 300 ml conditioner and 100 ml leave-in scalp and hair treatment.

Who is this System kit suitable for?

It is designed for dry, damaged or coloured hair with progressed thinning.

Do all three products need to be rinsed out?

Rinse out the shampoo and conditioner. Leave the third product, the scalp and hair treatment, in the hair.

How often should I use the full system?

Use the complete three-step system at least three times a week.

Ingredients (INCI)

Ingredients may change. Check the ingredient list on the packaging before use.

Shampoo

Aqua/Water/Eau, Sodium Laureth Sulfate, Sodium Lauryl Sulfate, Sodium Chloride, PPG-2 Hydroxyethyl Coco/Isostearamide, Sodium Benzoate, Citric Acid, Salicylic Acid, Mentha Arvensis Leaf Oil, Mentha Piperita (Peppermint) Oil, Tetrasodium EDTA, Trisodium Ethylenediamine Disuccinate, Methylparaben, Polyquaternium-10, Propylene Glycol, Sodium Hydroxide, Limonene, Camellia Sinensis Leaf Extract, Cystine Bis-PG-Propyl Silanetriol, Niacinamide, Panthenol, Biotin, Lecithin, Tocopheryl Acetate, Foeniculum Vulgare (Fennel) Fruit Extract, Yellow 5 (CI 19140), 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, Blue 1 (CI 42090), Phenoxyethanol, Citrus Aurantium Dulcis (Orange) Fruit Extract, Red 33 (CI 17200), Maltodextrin, Potassium Sorbate, Sodium Citrate, Ethylparaben, Butylparaben, Sodium Xylenesulfonate.

Conditioner

Aqua/Water/Eau, Cetyl Alcohol, Stearamidopropyl Dimethylamine, Stearyl Alcohol, Distearyldimonium Chloride, Phenoxyethanol, Benzyl Alcohol, Cetearyl Alcohol, Hydroxypropyl Guar, Glyceryl Stearate, Oleyl Alcohol, Mentha Piperita (Peppermint) Oil, Mentha Arvensis Leaf Oil, Propylparaben, Polysorbate 60, Propylene Glycol, Methylparaben, EDTA, Hydroxyethylcellulose, Citric Acid, Quaternium-80, Limonene, Camellia Sinensis Leaf Extract, Cystine Bis-PG-Propyl Silanetriol, Tocopheryl Acetate, Lecithin, Biotin, Panthenol, Niacinamide, Foeniculum Vulgare (Fennel) Fruit Extract, Disodium Phosphate, Acer Saccharum (Sugar Maple) Extract, Vaccinium Myrtillus Leaf Extract, Citrus Limon (Lemon) Peel Extract, Saccharum Officinarum/Sugar Cane Extract/Extrait de canne à sucre, Faex Extract/Yeast Extract/Extrait de levure, Sodium Phosphate, Citrus Aurantium Dulcis (Orange) Fruit Extract, Maltodextrin, Blue 1 (CI 42090), Potassium Sorbate, Sodium Benzoate, Ethylparaben, Butylparaben

Leave-in scalp and hair treatment

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.