PRP injections are done in three steps: To carry out the therapy, your own blood is drawn, likely from your arm. That blood is then placed into a centrifuge to spin down into three layers: plasma rich in platelets, platelet-poor plasma, and red blood cells. The Plasma Rich Platelets are then injected directly into the scalp to generate new hair growth and improve hair texture & thickness. Improvement can be seen within 3-6 months of treatment for most people. Treatments done approximately 1 month apart for optimal results.