What it is
Platelet-rich plasma (PRP) is a preparation made from a person's own blood. A small blood sample is processed so the platelet portion is concentrated, and that preparation is then used by a clinician in a targeted area. In hair care, that area is the scalp.
Platelets contain many natural signaling proteins, which is why PRP has drawn interest in regenerative medicine. Interest, however, is not the same as proof. Evidence for PRP in hair thinning is limited and still developing, and results vary from person to person.
Regulatory status matters. PRP is not a stem cell product, and using it for hair loss is generally an off-label or investigational use. The only FDA-approved stem-cell products in the U.S. are cord-blood-derived hematopoietic progenitor cell (HPC) products for certain blood and immune disorders, used in specialist transplant settings. The FDA has warned the public about unapproved stem cell and exosome products, and no exosome product is FDA-approved.
How it’s traditionally been approached
Hair thinning has long been approached in several ways, depending on its cause. These can include evaluation for medical, hormonal, nutritional or scalp-related contributors, topical or oral options a clinician may consider, procedural options, and cosmetic or styling choices.
PRP became part of the conversation as clinicians in sports medicine, dermatology and aesthetic care explored its use in other areas and began applying it to the scalp. Some people consider it on its own, and others discuss it alongside other approaches with their clinician.
Because hair loss has many possible causes, a thorough evaluation is generally considered the starting point. Whether PRP is appropriate, how it is prepared, and how many visits may be suggested are decisions for a licensed clinician after an evaluation, not something a web page can determine.
How the right provider may help
The right provider may help by first understanding your history and looking at why the hair thinning may be happening. A visit often includes a conversation about your health, medications, goals and expectations, and a scalp examination. A good provider can also explain when PRP may not be a fit and discuss alternatives.
Useful questions to ask include: What is the regulatory status of what you are proposing, and is this use off-label? What is your training and experience? How is the PRP prepared, and what are the risks? What does the evidence honestly show, and what are the alternatives, including doing nothing? How will progress be assessed?
Before agreeing to anything, confirm the clinician's license with your state medical board and ask for written informed consent covering risks and alternatives. If you are offered a clinical study, check that it is registered on ClinicalTrials.gov and has IRB oversight. Be cautious about cure-all claims, testimonials offered in place of evidence, paying to join a 'clinical trial', and pressure to travel across states or abroad. 'Holistic' or 'alternative' framing does not change FDA status.
The whole-person view
Hair changes can touch more than appearance. Stress, sleep, nutrition, illness and hormonal shifts can all be connected to the body, and worries about how we look can in turn affect mood and stress. Body, mind and stress influence one another, so a whole-person view can be helpful.
Some people explore body-based support such as Somatic Experiences to better understand how stress shows up physically. Others find talk therapy through Therapists.plus useful for coping with the emotional side of appearance changes. These are supportive options, not replacements for a medical evaluation, and Providers.plus lists licensed providers you can explore.
Somatic Experiences: embodiment and movement →Somatic Experiences: nervous system regulation →Therapists.plus: mind body connection →
Keep in mind
- PRP for hair is not a guaranteed or proven solution, and results vary; only a licensed clinician can decide what is appropriate after an evaluation.
- Do not assume that a stem cell, exosome or 'regenerative' product offered for hair is FDA-approved; ask the provider to show you its FDA status in writing.
- Sudden or patchy hair loss can sometimes relate to underlying health conditions, so licensed professionals should guide care.
- For emergencies call 911; in a crisis call or text 988.
Not sure where to start? Answer a few gentle questions and choose who you’d like to hear from.
Frequently asked questions
What are PRP hair restoration sessions?
PRP hair restoration sessions are clinic visits where a clinician prepares platelet-rich plasma from your own blood and uses it on the scalp in an effort to support hair thinning. The approach is generally off-label and the evidence is still limited. A licensed clinician decides whether it is appropriate.
How many PRP hair restoration sessions do people have?
There is no single number that applies to everyone, and this page does not recommend one. The number and spacing of visits is a decision for a licensed clinician after an evaluation. Ask any provider to explain their reasoning and how progress would be assessed.
Is PRP for hair loss FDA-approved?
PRP for hair loss is not an FDA-approved treatment indication, so its use is generally considered off-label. The centrifuge devices used to prepare PRP may be cleared for other purposes, which is different from approval for hair restoration. Ask your provider to explain the regulatory status plainly.
Is PRP the same as stem cell therapy?
No, PRP is not stem cell therapy. PRP concentrates platelets from your blood, while stem cell products involve different cell types. In the U.S., the only FDA-approved stem-cell products are cord-blood-derived HPC products for certain blood and immune disorders, and the FDA has warned about unapproved stem cell and exosome products.
What should I ask before booking PRP hair sessions?
Ask about the provider's license, training, the preparation method, risks, alternatives and the honest state of the evidence. Request written informed consent. Verify the clinician's license with your state medical board.
What are red flags with hair restoration clinics?
Red flags include claims that a treatment cures or treats everything, testimonials used instead of evidence, and being asked to pay to join a 'clinical trial'. Pressure to travel across states or abroad is another warning sign. Legitimate studies are registered on ClinicalTrials.gov and have IRB oversight.
Educational resource. StemCell.biz shares general information and connects people with independent providers. It is not medical advice, diagnosis or treatment. Talk with a licensed professional about your health.