When a body has a wound, it heals by bringing blood to the wound site. Blood contains white blood cells from your immune system and many proteins that help with healing. The problem is that only a small amount of these cells are available in the blood, so a large volume of blood needs to pass through the wound site to stimulate healing. Because this takes a long time, injuries stay red and swollen as they heal. A-PRF speeds up the healing process by concentrating the healing properties of blood and placing them directly at the wound site.