Find out and make a list of proteins used as therapeutic agents. Find other applications of proteins (e.g., cosmetics, etc.)

Explanation

Proteins used as therapeutic agents are as follows:
Thrombin and fibrinogen – They help in blood clotting.
Antigen (antibody) – It helps in blood transfusion.
Insulin – It helps in maintaining blood glucose level in the body.
Renin – It helps in osmoregulation.
Proteins are also commonly used in the manufacture of cosmetics, toxins, and as biological buffers.