Luotian Xinpusheng pharmaceutical Co.,Ltd., is the largest "MELATONIN" manufacturer in China. Now we are specializing in the R&D, production and technical cooperation of APIs, materials of health care products, food and feed additives, pharmaceutical intermediates. Boasting a team of high-caliber researchers and technicians, we, over the years, have been committed to the improvement of new technology of old product and the development of new products. We brought in advanced testing equipments,such as AGILENT HPLC,JINGKE UV-visible spectropho...