Practical Use of Cells from Patients' Own Bodies to Heal Damaged Tissue Out-Pacing Study of Embryonic Stem Cells. Introducing. RichGen Medicinal Signaling Cells (MSCs) with Growth Factors go far The Industry Standard · Online Ordering · Highest Concentration · FDA Registered. So what's the advantage of using stem cells from the embryo that have been reprogrammed in this way? The main advantage is that you can derive a greater vari.