Colla Corii Asini can be stewed with chicken, beef, astragalus, lean meat, sheep lung, pigskin, eggs, walnuts, red dates, longan and other ingredients, such as colla Corii Asini stewed chicken, colla Corii Asini stewed astragalus, colla Corii Asini stewed lean meat and colla Corii Asini stewed sheep lung.

Ejiao, the name of traditional Chinese medicine. It is a rubber block made from the skin of Equus donkey by soaking and unhairing. When stewing Ejiao, although the ingredients are different, the practice is similar. Take a proper amount of donkey-hide gelatin and put it in a saucepan until the donkey-hide gelatin completely melts.

Colla Corii Asini is mostly composed of collagen, which is hydrolyzed to obtain various amino acids, such as lysine, arginine, histidine, cystine, tryptophan, hydroxyproline, aspartic acid, threonine, serine, glutamic acid, proline, glycine and alanine.