Principle of action of collagen implant Collagen implant, whose collagen component is decapsulated collagen, has moderate resistance to protease after implantation and will not decompose immediately. The dispersed collagen will form a soft and sticky fiber structure, which can stay at the implantation site, restore the depression and maintain the repair effect. After a few months, the implanted collagen will be assimilated by human connective tissue and become a part of human tissue, but it will also be decomposed by collagenase in the body, so it is biodegradable and will not remain permanently at the implantation site.