Two locations? They're not adjacent.
Let's clear this up. Yes they use human growth factor from human foreskins but this is a dead end. Once they get those cells they grow and use same batch. SkinMedica sells product with it. It's about $150 a tube. The procedure where it's used in doctors offices is called PRP (protein rich plasma) and the patient's own blood is drawn and spun down. Plasma is applied after microneedling (that's where the blood is from, the patient's skin bleeding). Not saying there's disgusting stuff going on but I think this is a dead end.