Doucouloupharma Co., Ltd.is a leading Chinese Pharmaceutical Ingredient supplier special in Steriod hormone.The company supply preferential price and high quality products.We invest large fund and brains into R&D, developing new products and pioneering new technics, to meet the demand of the market. Allv the products from our plants are the fruit of out R&D department, reaching the advanced standard of domestic market, many of which reach the international standard.Welcome the friends from all over the world and promote pleasant cooperation,we sincerely offer you the best quality products and services.