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PRP hair restoration uses platelet-rich plasma—a concentrate prepared from a small sample of your own blood—injected into the scalp to support thinning hair. It is best understood as a supportive, course-based option for androgenetic (pattern) hair loss: backed by moderate evidence, dependent on maintenance sessions, and not a cure for baldness.
PRP hair restoration is most often discussed for androgenetic alopecia—the gradual, pattern-type thinning common in both men and women—and sometimes as a supportive step before or after a hair transplant. The typical goal is to slow shedding and improve the thickness and density of existing, miniaturized hairs, with the crown and a widening part line among the most common areas of concern. It is not a way to create hair where follicles have already disappeared.
It helps to draw a clear boundary: PRP is an injection-based treatment, not hair transplantation, which surgically relocates follicles from one area to another. PRP can only act where living follicles remain, so smooth, long-bald areas and scarred scalp gain little from it. The clinical evidence is moderate—many studies suggest benefit, but preparation protocols vary widely and results are inconsistent—so it is usually positioned alongside established medical therapies rather than in place of them.
Treatment begins with drawing a small tube of blood, much like a routine lab test. The sample is spun in a centrifuge to concentrate the platelets, which carry growth factors thought to stimulate dormant follicles and extend the hair's growth phase—though the exact mechanism is not fully established. The clinician then delivers the plasma into the target areas through a series of small scalp injections. Stinging, pressure, or aching is common while injecting; some clinics use topical numbing or cooling to ease it.
A session usually takes around an hour, and most people return to normal plans the same day, though the scalp may feel sore; clinics often advise briefly avoiding vigorous scrubbing of the scalp and intense exercise. Change is gradual: reduced shedding is typically noticed first, and any visible difference in density or hair thickness tends to take several months. PRP is delivered as a course—an initial series of sessions spaced weeks apart, then periodic maintenance—and improvements gradually fade if maintenance stops.
The clearest candidate is an adult with early-to-mid pattern hair loss whose thinning areas still show fine, miniaturized hairs, and who wants a non-surgical adjunct alongside medical therapy or around a transplant. A useful consultation should cover whether androgenetic alopecia is actually the confirmed diagnosis, whether other causes such as thyroid or iron problems should be ruled out first, how PRP would fit with treatments like minoxidil or finasteride, after how many sessions results will be reassessed, and what a realistic change looks like for you.
It is not suitable for everyone. People with platelet dysfunction, blood disorders, or those taking anticoagulant medication are generally not candidates, and active infection or skin disease at the injection sites should be treated first. Long-bald, smooth areas and most scarring alopecias respond poorly because too few living follicles remain. Treatment is usually deferred during pregnancy and breastfeeding. Share your full medical history, medications, and supplements at the consultation so the clinician can judge suitability and whether tests are needed first.
Soreness, tenderness, tightness, mild swelling, pinpoint bleeding, and bruising at the injection sites are the most common short-term effects, usually settling within hours to a few days; some people notice a temporary headache. Because the injected material comes from your own blood, allergy or immune rejection of the plasma itself is unlikely—but that does not make the procedure risk-free, since most of the risk comes from the injections and the preparation process rather than the plasma.
Less common complications include infection at the injection sites, nerve irritation or injury, and reactions to additives used during preparation, such as anticoagulants. PRP is a medical procedure: blood collection, centrifugation, and scalp injection should be performed in a licensed medical facility by, or under the supervision of, a qualified physician. How rigorously the blood is handled directly affects safety, and any device registration details should be confirmed with the clinic providing the treatment.
Contact the treating clinician promptly if pain keeps worsening, the scalp becomes markedly red, hot, or swollen, pus or fever develops, or unusual numbness appears. It is also worth returning for reassessment if shedding shows no improvement after a full course, since the diagnosis or the plan may need revisiting. This guide is general information only and is not a substitute for an in-person medical consultation.