Platelet Rich Plasma (PRP) Injection
Platelet rich plasma (PRP) is the product of one’s own blood obtained by centrifuging a sample of blood drawn from the arm. PRP as the name implies contains platelets, which are the blood clotting cells in the blood. These cells are very active in the early phases of wound healing and contain growth factors in their cytoplasm which promote wound healing.
Recently, PRP has shown a great deal of promise in the field of hair loss and is used as a scalp injection to promote hair growth. Although there are no case-controlled studies published in peer-reviewed medical journals proving efficacy, there appears to be significant anecdotal experience by physicians in the hair restoration field suggesting that PRP may be effective in promoting hair regrowth in some hair loss patients.
PRP injections are given in a series of 4 injection sessions spaced 1-2 months apart. After this initial regimen, we usually recommend maintenance treatments 2 – 4 times a year. There is no downtime to speak of after treatment, although swelling and redness may occur. Results are not expected to occur immediately, but rather in 6-9 months, although there may be cases in which hair regrows earlier and in some not at all. There are no guarantees with this treatment. Results are expected to be better in patients who still have some hair follicles left to stimulate and therefore are expected to be better in the earlier phases of hair loss.
PRP is not a cure for baldness (Androgenic Alopecia). This procedure does not correct the underlying genetic programming that causes hair thinning. However, there is evidence that regular treatments can help increase hair density, and at the very least slow down the hair loss process.