How to Use Each Product in the Nioxin Scalp + Hair Thickening System 4 Starter Trial Kit 

System 4 Scalp + Hair Shampoo

1. Wet your hair thoroughly with warm water.
2. Apply a small amount of shampoo to your scalp and hair.
3. Gently massage the shampoo into your scalp for 1-2 minutes.
4. Rinse thoroughly with warm water.
5. Repeat if necessary for optimal cleansing.
    

System 4 Scalp + Hair Conditioner

1. After shampooing, apply the conditioner to your scalp and hair.
2. Distribute evenly, focusing on the ends of your hair.
3. Leave the conditioner on for 1-3 minutes.
4. Rinse thoroughly with warm water.
5. Gently towel dry your hair.
    

System 4 Scalp Care + Hair Thickening Treatment

1. Apply the treatment directly to your scalp on damp hair.
2. Distribute evenly through your hair using your fingers or a comb.
3. Do not rinse out; leave the treatment in your hair.
4. Style your hair as desired.
5. Use daily for best results.
    

SYSTEM KIT 4 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. SYSTEM KIT 4 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 SYSTEM KIT 4 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.