The way platelet-rich plasma for hair loss works is by injecting the patient’s blood into the scalp area where hair loss is starting to appear. The body produces “growth factors,” which are proteins with a number of beneficial functions, when this platelet-rich plasma is activated. Growth factors have the potential to strengthen hair follicles by enhancing circulation in the treated area, hence preventing hair loss. The result is thicker, healthier-looking new hair growth at the injection location. These growth factors can also aid in the healing and reactivation of hair follicles, hence increasing the amount of hair in the affected area. Additionally, the proteins function to activate the papilla cells, which aid in the growth of new hair. This means that platelet-rich plasma therapy counteracts hair loss by strengthening hair follicles for thicker hair and reactivating dormant hair follicles for new development.
Three injection sessions, separated by four to six weeks, are usually required for the initial round of platelet-rich plasma injections intended to prevent hair loss and rejuvenate the scalp. For optimal outcomes, several injections are required, and patients frequently need a maintenance treatment series once a year to keep the effects of the treatment going. After each treatment round, it may take a few weeks before the full results of the treatment become noticeable. In the weeks that follow, most patients will see a natural thickening and regrowth of hair.