If you've been researching hair loss treatments, PRP has probably come up. It sounds almost too clever, using your own blood to stimulate your scalp, and the buzz around it has only grown as more dermatologists add it to their treatment plans. But what does it actually do, who does it work for, and is it worth considering? Here's what you need to know before booking a consultation.
What PRP Is and How It Works
PRP stands for Platelet-Rich Plasma. It's made from your own blood, which is drawn, spun in a centrifuge to concentrate the platelets, and then injected into areas of your scalp where hair is thinning.
The idea behind it is straightforward. Platelets contain growth factors, proteins that play a role in tissue repair and regeneration. When concentrated and delivered directly to struggling hair follicles, those growth factors are believed to extend the follicle's active growth phase and improve its overall function.[1]
To be clear about what PRP is not doing: it isn't creating new follicles. It's working with the ones you already have, encouraging them to perform better before they become permanently dormant.[2] The exact mechanism is still being studied, but the clinical interest is real. Dermatologists are increasingly incorporating PRP into comprehensive hair loss plans rather than treating it as a fringe option.
What Actually Happens During a Session
The process is simpler than it sounds and takes less than an hour from start to finish.
A small amount of blood is drawn from your arm, the same as any routine blood test. That sample goes into a centrifuge, which spins it down to separate and concentrate the platelets. The resulting plasma is then injected into targeted areas of your scalp.[3]
Who May Be A Suitable Candidate For PRP Treatment?
PRP appears to work best for people with androgenetic alopecia, the genetic pattern hair loss that causes gradual thinning at the crown or part line in women, and recession at the temples or crown in men.
It is most effective when there are still active, if struggling, follicles to work with. The earlier you address thinning, the more PRP has to work with. For people with advanced hair loss or areas where follicles are no longer active, PRP is unlikely to deliver meaningful results.
A proper diagnosis before starting any treatment is non-negotiable. Hair loss has many causes, hormonal, nutritional, autoimmune, stress-related, and PRP is not the right tool for all of them.
What Results Actually Look Like
Patience is genuinely part of this treatment. Hair growth is slow, and PRP results reflect that.[4]
Most protocols involve an initial series of sessions spaced a few weeks apart, followed by maintenance treatments. Early signs that it's working include reduced shedding and gradual improvements in hair thickness and density. Full results take months to assess, not weeks.
Every person responds differently, and outcomes depend on the cause and severity of hair loss, how early treatment begins, and how well it's integrated into an overall plan. PRP is not a cure, and setting realistic expectations from the start is important.
What to Expect During and After The Session
Patients typically experience mild sensation during the injections, nothing that requires anaesthesia or significant downtime. Mild, temporary side effects can include redness, scalp tenderness, minor swelling at injection sites, and occasional bruising. These typically resolve within a few days.[5]
How PRP Fits Into a Broader Treatment Plan
PRP is most commonly incorporated into a broader hair loss treatment plan rather than used as a standalone procedure. Dermatologists often combine it with topical treatments like minoxidil or other prescription options, depending on the individual's diagnosis and hair loss pattern.
The Bottom Line on PRP
PRP is a legitimate, evidence-informed option for people dealing with early to moderate pattern hair loss. It's not a miracle, and it's not right for everyone. But for the right candidate, used as part of a considered treatment plan, it's worth a serious conversation with a dermatologist.
References
[1] https://my.clevelandclinic.org/health/treatments/platelet-rich-plasma-prp-injection
[2] https://pmc.ncbi.nlm.nih.gov/articles/PMC6374694/
[3] https://www.hopkinsmedicine.org/health/treatment-tests-and-therapies/plateletrich-plasma-prp-treatment
[4] https://www.coastaldermonline.com/blog/prp-before-and-after-hair-restoration-treatment-effects
[5] https://www.goldenstatedermatology.com/blog/what-to-expect-during-your-prp-hair-restoration-treatment