Some people on the internet say that Ejiao is actually just like pigskin. The so-called collagen is actually a kind of inferior protein, and there is no blood-enriching ingredient. These people analyze the problem from the perspective of a piece of skin, so they have certain credibility. The composition of skin (pig skin and donkey skin) is really mainly collagen, and there is nothing special except chewiness.
However, we neglected that other auxiliary materials were added to the cooking process of Ejiao, instead of taking the skin and cooking it there at high temperature, and then the gelatin cook stirred it there to get Ejiao. It has its own formula and technology, not simple leather. If we understand it in this way, then tea leaves are just leaves. How can it present a multi-flavor, healthy and health-preserving effect? It is because of the chemical reaction in the process of making tea that something that was not originally available was produced (or because the frying process accelerated the chemical reaction, making it from recessive to dominant? ), is beneficial to the human body. Otherwise, a leaf is so bitter that who wants to eat it?
I don't deny the function of Ejiao, but I do deny the propaganda of "blood-enriching holy products" advocated by Ejiao. To what extent can it give artificial blood? Probably not as much as the internal organs provide. The inflated price is even more disgusting, at least I don't think it's worth it. Colla Corii Asini should only be used as a medicine for calming yin and yang in Chinese medicine shops, and should not be blown into an elixir.