Dr. Grossman is a stickler for safety, so she has her patients wear metal eye shields and only does this procedure in her Santa Monica office. She says it takes a few rounds to get optimal results, so packs of four treatments go for up to $3,000, based on the area treated. She says that the growth factors from your blood stimulate your fibroblasts, which in turn create more collagen, which means younger-looking skin — and this is just the beginning. “Looking inward and seeing what your body can do, and how it can heal itself, is going to affect all aspects of medicine,” she says, noting that she gave PRP treatments a fair amount of skepticism in the beginning, but has seen the science behind growth factors work right before her eyes.