Hair Growth Frequently Asked Questions

1. What is PRP?

PRP stands for platelet rich plasma. It is extracted from your own blood. About two ounces of blood is drawn and put into a special PRP centrifuge. When completed in about 20 minutes, 10 cc (1/3 ounce) of pure PRP is drawn off. This PRP contains the concentrated growth factors, proteins and cytokines needed to stimulate hair follicle stem cells and initiate improved hair growth.

2. How is the PRP administered?

You should thoroughly wash your hair prior to coming in for PRP. Do not add any sprays, gels or other hair products. The doctor with numb the top of your scalp with an anesthetic agent – an area about the size of a standard post card. Then, within the area of anesthesia, PRP is injected directly into the scalp in multiple sites. You should leave the PRP on your scalp for 24 hours and then it can be shampooed. The PRP is in the scalp and will continue to work for about 8 weeks. During this time, you should avoid taking all anti-inflammatory agents such as aspirin, ibuprofen or naproxen.

3. When will I start to see the effects of PRP on my hair?

This varies among individuals. Generally you can start seeing a benefit in 2-3 months. The maximum benefit is seen at 6 months. Improved hair appearance may last 9-10 months but then there will be a gradual return of the hair to its baseline without continued PRP therapy. This is why we suggest getting a PRP treatment every 9 months. The benefits of PRP for hair growth may be prolonged with supplements or prescription medications.

4. How long has platelet rich plasma been used in hair rejuvenation?

PRP was introduced as a viable clinical treatment in hair rejuvenation in 2007 by Dr. Joseph Greco, Phd. Dr. Greco is a leading researcher in hair transplantation and regrowth. Through his research and studies, he has shown promising benefits in using PRP as an excellent option for nonsurgical hair rejuvenation.

2. What research has been done in using platelet rich plasma in hair regrowth?

The International Society of Hair Restoration provided research grants to study “The Effects of Platelet Rich Plasma and Various Growth Factors on Non Transplanted Miniaturized Hair” and another study to investigateĀ  the effects of platelet rich plasma and other growth factors in the treatment of Alopecia Areata, an autoimmune disease. In the first study, the authors showed a 6-9% increase in the hair shaft diameter over an 8 month period. This is in comparison to the placebo controlled group who showed a decrease of an average of 6% over the same time period. In the second study, it was demonstrated by Dr. Fabio Rinaldi and his co-researchers that there was significant hair regeneration in patients with Alopecia Areata – a condition characterized by areas of total hair loss. In an unpublished report, 16 out of 18 patents with Alopecia Areata who were treated with PRP showed hair regrowth. In another unpublished study, a patient with 50 active hair follicles was treated with PRP. At 6 months, active hair follicles were counted showing 850 actively growing hair follicles.