Germanys #1 Best-Selling Mens Shampoo**Nielsen Data (Germany, 2020): Hair Loss Shampoo Category.Hair needs a sufficient supply of energy and nutrients to grow properly. When hair follicles are exposed to dihydrotestosterone (DHT), a metabolite of the male sex hormone testosterone, this supply is impaired. As a result, the growth phases of the hair roots are reduced hair loss and balding are possible results.Caffeine can counteract this process. Studies prove that caffeine inhibits the negative effects of testosterone on hair growth and balances out the resulting lack of energy. It extends the growth phases of the hair roots back to the normal length so that hair can grow even in old age.Alpecin Caffeine Shampoo C1 provides your hair with the optimum concentration of caffeine. The active ingredients penetrate your hair shafts thanks to its unique galenic formula. There it counteracts testosterone attacks and stimulates hair growth.How much caffeine is contained in the caffeine shampoo?The quantity of caffeine absorbed by the body is about one-fifth of a cup of coffee or 50ml of Coca-Cola. This is completely safe, even for people who react sensitively to caffeine.STRENGTHENS HAIR ROOTS DURING WASHINGHair immediately has more grip and can be styled better without the use of softening silicones.UNIQUE FORMULAAlpecins Caffeine Complex containing caffeine, zinc, and niacin supports natural hair growth.CLINICALLY PROVENThe effectiveness of Alpecin has been demonstrated over several years of scientific research and in numerous clinical studies.DAILY HAIR ROUTINEUse Alpecin Caffeine Shampoo C1 every day. Leave it on the scalp for just two minutes from application to rinsing out.Ingredients. Aqua, Sodium Laureth Sulfate, Laureth-2, Disodium Laureth Sulfosuccinate, Sodium Chloride, Sodium Lauroyl Glutamate, Caffeine, Panthenol, PEG-120 Methyl Glucose Dioleate, Hydrolyzed Wheat Protein, Citric Acid, Sodium Citrate, Propylene Glycol, Menthol, PEG-40 Hydrogenated Castor Oil, Polyquaternium-7, Disodium EDTA, Zinc PCA, Niacinamide, Tocopherol, Vegetable Oil, Potassium Sorbate, Sodium Benzoate, Phenoxyethanol, Parfum, Limonene, CI 42090, CI 60730.. Discipline for your hairMake sure you keep your hair strong:. Use daily to steadily supply your hair with caffeine.. Leave in for 2 minutes to allow the caffeine to travel along the hair shaft directly to your hair. Rinse it out afterward.. See the first effects after 3 months.