Platelet-Rich Plasma (PRP) therapy is a non-surgical treatment option for hair loss that involves a three-step process:

1. Blood Collection: A small amount of your blood is drawn, typically from your arm.
2. Centrifugation: The blood is then placed in a centrifuge, which spins rapidly to separate the blood components.
3. Injection: The platelet-rich plasma layer is extracted and injected into the scalp areas that require hair growth stimulation.

PRP therapy is based on the idea that the growth factors in platelets can promote hair regrowth by stimulating inactive hair follicles and increasing blood supply to the hair follicle. It's been found to be effective in increasing hair thickness and density, and it may protect hair follicles from premature shedding.

The treatment usually requires multiple sessions, and while some people may see results after just a few sessions, others might need more to notice improvements. It's important to consult with a healthcare professional to determine if PRP therapy is suitable for you and to understand the potential risks and side effects.