Doctors have learned that the body has the ability to heal itself. Platelet-rich plasma therapy is a form of regenerative medicine that can harness those abilities and amplify the natural growth factors your body uses to heal tissue. Plasma is the liquid portion of whole blood. It is composed of largely of water and proteins, and it provides a medium for red blood cells, white blood cells and platelets to circulate through the body. Platelets are blood cells that cause blood clots and other necessary growth healing functions. Platelet activation plays a key role in the body’s natural healing process.