PRP stands for platelet-rich plasma.

During a PRP hair treatment, a small amount of your blood is collected and processed to separate a platelet-rich portion of plasma. That prepared PRP may then be administered into selected areas of the scalp as part of a physician-led treatment plan.

PRP is not a hair transplant, a synthetic filler, or a stem-cell treatment. It uses a component prepared from your own blood in a single procedure.

Health Canada explains that PRP prepared from a patient’s own blood and administered back to the same person in a single procedure falls within the provincially and territorially regulated practice of medicine when performed by an eligible practitioner.

“Hair loss” is a broad term. Two people may both notice thinning, but the reason behind it can be entirely different.

PRP may be discussed most often in relation to pattern hair loss, also known as androgenetic alopecia. Pattern hair loss can affect people of different genders and may develop gradually over time.

Other hair-loss concerns may need a different assessment first, including:

• Sudden or rapid shedding
• Patchy hair loss
• Scalp pain, scaling, redness, itching, or inflammation
• Hair loss after illness, childbirth, surgery, medication changes, or major weight change
• A concern that may be linked to nutrition, hormones, thyroid health, or another medical condition
• Possible scarring hair loss

PRP does not diagnose the cause of hair loss. If your hair loss is sudden, patchy, painful, or accompanied by scalp symptoms, speak with an appropriate health care professional before pursuing cosmetic treatment.

Some controlled research studies have reported positive results for PRP in people with pattern hair loss.

For example, a small randomized, placebo-controlled study involving people with male pattern hair loss reported increased hair count and density after a course of PRP treatments. However, the study was small, used its own specific treatment protocol, and the authors stated that larger controlled studies were still needed.

This is the key point: research findings can help guide a conversation, but they do not predict your individual result.

Your response may depend on the type and stage of hair loss, the treatment protocol, your health history, and factors that are not visible in an online photo or a quick consultation.

There is no universal PRP formula for hair loss.

Research studies have used different blood-preparation systems, platelet concentrations, injection methods, session spacing, and maintenance schedules. That makes it difficult to compare one clinic’s treatment plan directly with another’s.

A randomized clinical trial comparing two PRP schedules for androgenetic alopecia found improvement with both protocols, but the results and pace of improvement differed between the groups.

This is why the number of sessions should not be presented as a universal promise. Your treatment plan should be based on your individual concern, suitability, response, and goals.

Hair growth does not change overnight.

If PRP is appropriate for you, it is best to think of it as a process rather than a one-appointment solution. You may need a course of treatment, time between sessions, and follow-up to assess whether the approach is helping.

A realistic conversation should cover:

• What type of hair loss you may be experiencing
• Whether PRP is a reasonable option for your concern
• The expected treatment plan and review schedule
• What improvement would look like for you
• Whether another medical or cosmetic option should also be considered
• Whether maintenance may be discussed in the future

Progress should be assessed over time, not by comparing your result with someone else’s online before-and-after image.

Because PRP uses your own blood, some people assume it is automatically suitable for everyone. That is not the case.

PRP is an injection-based medical procedure. Your health history, current medications, skin and scalp condition, blood-related concerns, and treatment goals should all be reviewed before treatment is considered.

Health Canada’s published guidance is clear that PRP should be prepared and administered by an eligible practitioner. Its 2019 clarification also stated that Health Canada had not independently reviewed scientific evidence on the safety, efficacy, and quality of PRP for therapeutic uses.

That does not mean PRP cannot be discussed as an option with a physician. It means the conversation should be honest, individual, and based on informed consent rather than exaggerated claims.

A good consultation should not begin and end with “How many PRP sessions do I need?”

It should also include questions such as:

• When did you first notice the thinning or shedding?
• Is the hair loss gradual, sudden, diffuse, or patchy?
• Are there scalp symptoms or recent health changes?
• What treatments, medications, supplements, or hair products are you currently using?
• Have you had a previous hair-loss assessment?
• What would feel like a meaningful result for you?

At Skin Vector, Dr. Lana Turban can help you understand whether PRP may be relevant to your concern and whether another assessment or treatment path should come first.