Product Name: Alpecin Anti-Hair and Dandruff Shampoo Containing Caffeine 200ML X2 Pieces. Product Description: While it helps reduce existing dandruff and the formation of new ones with Salicylic Acid and Pyroctone Olamine in its formula, it supports nourishing the scalp, strengthening hair follicles and preventing hereditary dandruff with Caffeine. For the caffeine to take effect, it must be left on the hair for at least 2 minutes. It is recommended to use every day. How to use: Apply to wet hair by massaging and rinse thoroughly. • Use every day • Leave for 2 minutes