Before use, check what an enzyme is. It's actually a biological enzyme, a kind of protein. The human body can synthesize itself and play a catalytic role in the body. But if it is taken orally, it will be decomposed by gastric acid and become amino acids, which is no different from eating protein. And regular manufacturers will not turn it into an enzyme, because the official name is biological enzyme. Taiwan Province Province and Japan like to call it Enzyme, but merchants just use some psychology to fool.