 Since the supply of this material was rather limited, it was said that a large amount of "fake" ejiao was also manufactured, using skins from mules, horses, camels, pigs, and sometimes, it was said, even from old shoes; a bit of "real stuff" was added to it, to deceive consumers.Ejiao is either prepared as dry gelatin or mixed with powdered oyster shell or pollen to form glue balls.It tastes sweet.