The concentrated platelets in PRP contain tremendous amounts of bioactive proteins, which include the growth factors PDGF and VEGF. These growth factors have been shown to initiate accelerated tissue repair, and have positive effects on skin rejuvenation. The growth factors, when released, promote tissue repair, angiogenesis (capillary formation), and collagen production.
"growth factors which work to stimulate collagen production, repair skin tissue and improve the skin's ability to retain moisture."
Figure 1 shows the mechanism of PRP when injected into aged or sun-damaged skin, which typically has less collagen, less elasticity, reduced amount of hyaluronic acid, and a reduced ability to retain moisture. The platelet component will then release growth factors which work to stimulate collagen production, repair skin tissue and improve the skin’s ability to retain moisture.