If you've been researching hair restoration options, there's a good chance you came across PRP — platelet-rich plasma — as a non-surgical solution for thinning hair. It built a strong reputation for a reason: harnessing your body's own growth factors to wake up dormant hair follicles was a genuinely promising concept, and it worked for a lot of people.
What the field has since discovered is that platelet-rich fibrin (PRF) takes that same concept and meaningfully improves on it. At Evolve Med Spa, PRF is our standard for regenerative hair restoration — and the science behind why it outperforms its predecessor is worth understanding before you book.
Both PRP and PRF are made from your own blood. Both concentrate the growth factors that signal your hair follicles to move from a resting phase back into active growth. The difference is in the processing.
PRP is spun at a higher centrifuge speed with anticoagulants added, which strips away the fibrin — the natural protein matrix that holds everything together. What you're left with is a potent but short-lived burst of growth factors. Once injected, PRP releases quickly and dissipates.
PRF skips the anticoagulants and spins at a lower speed. That preserves the fibrin mesh — a three-dimensional scaffold that keeps platelets, white blood cells, and growth factors locked together. When injected into the scalp, PRF releases its regenerative signals gradually over days to weeks, rather than all at once.
For hair restoration specifically, that slow-release window is critical. Hair follicles need a sustained regenerative signal to shift from the telogen (resting) phase back into anagen (active growth) — not a single burst that fades before the follicle has time to respond.
The result is a treatment that works with your follicle's natural cycle rather than trying to override it — which is why PRF patients tend to see more consistent and longer-lasting results than comparable PRP protocols.
Liquid PRF — the form used for scalp treatment — is a golden, fluid serum drawn from the platelet-rich layer of your centrifuged blood. When injected across the treatment zone of the scalp using a fine-gauge needle, it delivers a concentrated dose of growth factors directly to the follicle bed.
The key growth factors at work in PRF for hair restoration include:
Together, these signals tell follicles that have slowed or stopped producing hair to re-enter active growth — and they tell actively producing follicles to produce thicker, stronger strands. The fibrin matrix in PRF also acts as a temporary scaffold at the injection site, keeping the growth factors in place longer than a liquid injection alone.
The appointment at Evolve follows a straightforward process that takes about 45–60 minutes from blood draw to finish.
The injections themselves involve a mild pricking sensation — most patients describe it as a 3 out of 10 with numbing. The scalp tends to feel tender and slightly swollen for 24–48 hours after treatment, which is a normal inflammatory response and part of the healing process.
Most patients return to normal activity the same day. Avoid washing your hair for 8–12 hours post-treatment, and skip intense workouts for 24 hours to minimize scalp irritation.
PRF hair restoration is a gradual process — the results build over months as follicles cycle back into active growth. Here's what the typical progression looks like:
Month 1:
Reduced shedding is usually the first sign patients notice. Hair may not look visibly different yet, but the excessive daily shedding that comes with diffuse thinning tends to slow. This signals that follicles are stabilizing.
Months 2–3:
Early regrowth begins to appear as fine, soft hairs — often most visible at the hairline and temples. These "baby hairs" are new follicle output from follicles re-entering the growth phase. Hair shaft thickness may also begin to improve.
Months 4–6:
This is where the most meaningful visible change occurs. Hair density increases noticeably, new growth fills in previously sparse areas, and existing hair tends to grow in stronger. Most patients schedule their progress photos around the 5–6 month mark.
Month 6 and beyond:
Results from a full PRF protocol continue to improve for up to 12 months as the hair cycle completes. Maintenance sessions every 6–12 months help sustain the follicle stimulus and protect against further thinning.
A full protocol is typically 3–4 sessions spaced 4–6 weeks apart. Single-session results exist, but the cumulative effect of multiple treatments produces significantly better density outcomes — especially for patients with more advanced thinning.
PRF works best for patients with:
PRF is not a hair transplant and won't produce results where follicles are completely absent — but for the right candidate, it's one of the most effective non-surgical tools available for maintaining and recovering hair density.
Not sure if you're in the right stage for PRF to make a real difference? A consultation at Evolve is the best way to assess your specific hair loss pattern, timeline, and realistic expectations. Visit our PRF service page for full treatment details, or book a consultation and we'll take a look together.
Ready to take a real step toward thicker, healthier hair? Book your PRF consultation at Evolve Med Spa and find out if PRF hair restoration is the right fit for your goals.
