It's really hard to say, I advise you not to buy it. There are many Ejiao factories near Dong 'e, and there are also many fakes. I am from Liaocheng, and Dong 'e is very close to us! There is only one Dong 'e Ejiao, which is the most authentic Dong 'e Ejiao now./Look on this website, Dong 'e Ejiao Co., Ltd. is the best and most authentic! The donkey-hide gelatin recorded in the compendium of materia medica is made of well water, black donkey skin and special technology, which has the function of enriching blood.