Hello. Thank you for visiting our store, we buy things in a licensed pharmacy in the European Union. Active serum improves the appearance and structure of hair. Hair becomes thicker, shiny and silky. Compound Aqua, Niacinamide, Glycerin, Niacin, Ligusticum Chuanxiong Root Extract, Centella Asiatica Leaf Extract, Polygonum Multiflorum Root Extract, Medicago Sativa Leaf Extract, Persea Gratissima Fruit Extract, Caffeine, Panthenol, Mentha Piperita Oil, Polysorbate 20, Citric Acid, Sodium Benzoate, Phenoxyethanol, Ethylhexylglycerin, Limonene Usage Apply the serum to a clean scalp, parting your hair, and distribute it over your entire head with massaging movements. Do not rinse off, use once every 3 days. The recommended course is at least 15-20 procedures. The course can be repeated once. It is recommended to use all products in the series with nicotinic acid for 3 months.