Trypsin, a kind of protease, EC 3.4.4.4, is a serine proteolytic enzyme extracted from the pancreas of cattle, sheep, and pigs. In vertebrates, acts as a digestive enzyme. In the pancreas, trypsinogen, the precursor of trypsin, is synthesized and secreted as a component of pancreatic juice. Read More

Royal jelly freeze-dried powder​ refers to the refrigerated royal jelly that is frozen at low temperature. The efficacy and function of royal jelly freeze-dried powder and the method of eating are the same as those of fresh royal jelly. Humans have not yet fully understood the anti-aging mechanism of royal jelly, but many people at home and abroad take royal jelly for a long time. Read More

Collagen is a biopolymer, the main component of connective tissue of animals, and the most abundant and widely distributed functional protein in mammals, accounting for 25% to 30% of the total protein, and even more than 80% in some organisms. Animal tissues derived from livestock and poultry are t Read More