PRP- Here's how it works: "Our blood is made of two main components, red blood cells, and plasma," he says. "The plasma contains white blood cells and platelets, which are rich in growth factors."Growth factors, in a sense, play the role of messengers, signaling skin cells to function. In fact, they've been used in medicine to treat a range of health issues, including arthritis, signs of aging, etc.The use of PRP is "a great treatment option for hair loss because it has a number of scientifically based articles showing its efficacy increasing hair count, hair thickness, and the growth phase of the hair cycle. This treatment has been gaining popularity around the world within the last few years.