Primer
PRP for Skin: A Primer
Platelets carry growth factors involved in wound repair. The theory is that concentrating them at a treatment site improves the repair, and the theory is plausible.
The evidence for skin, as opposed to hair or orthopaedic use, is thinner than the marketing suggests. The preparation varies so much between clinics that two treatments sold under the same three letters may have little in common.
This hub covers PRP as it is used on the face: alone, and as an add-on to microneedling.
What to hold in mind while reading
Three guides cover the subject: the evidence, the pricing structure, and the microneedling combination. Three facts apply to all of them.
PRP is autologous
It comes from you, which removes the allergy question that attends injected products. That is the main reason it is often described as low risk.
Low risk is a relative term. Handling, sterility and injection technique still matter, and bruising and swelling are routine.
PRP is not a drug
The kits and centrifuges used to prepare it are cleared devices, and most were cleared for a narrow purpose unrelated to the face. Facial use sits outside that purpose.
That is legal and common. It is also why no regulator has assessed PRP for skin rejuvenation in the way a medication would be assessed, and any clinic describing its facial PRP as "approved" is misstating the position.
PRP evidence is uneven
For androgenetic hair loss the pooled trial data show a modest, real effect. For atrophic acne scars, adding PRP to microneedling produces a small additional improvement in most split-face trials.
For general facial rejuvenation the trials are few, small, short and inconsistent in how the PRP was made. In practical terms, the evidence points to a supporting role, not a headline one.
Recovery outings
Shade is the criterion for the day after any of these treatments, since readers ask. The South Coast Botanic Garden on the Palos Verdes peninsula keeps more canopy than the coast suggests.
A pink, lightly swollen face wants a low sun and a wide hat. Early morning is the right hour.
For readers who would rather sit than walk, the restaurant trade body's member listings kept by the California Restaurant Association are a reasonable way to find a covered patio. A face should stay out of direct light for a week.
Water is the other question. Sweat and pool water on fresh punctures are best avoided for a few days, and the ocean longer.
The river walks promoted by Friends of the LA River are pleasant, shaded in places and free of chlorine. That makes them a better recovery-week outing than the beach.
The planning hub covers the sun question in full, alongside licence rules and skin tone. Read it before the procedure hubs if your skin pigments readily after injury.
Reading on
Read the evidence guide first. It is the one that decides whether the other two matter to you.
If you are already booked, read the pricing guide before the consultation so that the quote makes sense. Read the add-on guide so that you know what "with PRP" is buying.
Readers ask
Is PRP the same everywhere?
No. Platelet concentration, the presence or absence of white cells, whether the plasma is activated, and the spin protocol all differ between systems.
Ask which system a clinic uses and what concentration it targets. A clinic that cannot answer is not the clinic.
Does it hurt?
The blood draw is a blood draw. Topical application after needling stings in the way the needling does.
Injection involves needle discomfort and often a topical anaesthetic beforehand. Individual experience varies.
How many sessions are usual?
Protocols in the literature typically involve three or more sessions spaced weeks apart, with maintenance thereafter. A single session sold as sufficient is a session sold optimistically.
Who can perform it?
Drawing blood, preparing PRP and injecting it are medical acts. In California that means a physician, or a nurse, nurse practitioner or physician assistant under appropriate physician supervision.
Topical application by an esthetician after someone else has needled the skin raises scope questions. The provider guide addresses them.
Can I swim or exercise afterwards?
Sweat and pool water on fresh punctures are best avoided for a few days. Hard exercise brings blood and heat to the face and prolongs the redness, so walk instead, in shade, until the skin has closed.
Notes on file
- PRP for Skin: What Platelet-Rich Plasma Is and What the Evidence SupportsHow PRP is prepared, why systems differ, where the trial evidence is reasonable and where it is not, and what "regenerative" is allowed to mean.
- How Microneedling and PRP Pricing Works in Los AngelesThe anatomy of a quote: per-session versus package, who performs the treatment, the add-on line, consultation fees and memberships, without figures that go stale.
- Microneedling With PRP: Is the Add-On Worth It?What the split-face trials found, how large the incremental benefit was, and how to weigh that against the added cost.