PRP: preparation, evidence and injection risks

What is being assessed?

Start with the change you want assessed: skin texture, a scar or hair loss is not one diagnosis. Review previous treatments, medical conditions and medicines. Evidence for one area or preparation should not be assumed to apply to another. A1

The table separates materials from delivery methods. Calling several procedures a blood facial does not show that their contents, risks or results are equivalent; ask which part of a proposed combination has supporting evidence. A1B1

Options and limits

Preparation involves collecting blood and separating a platelet-rich fraction. Identity checks, sterile handling and the planned route of application are important. The intended benefit should be discussed alongside other appropriate options, including deferring an elective procedure. A1A2

Facial rejuvenation evidence leaves questions about the best preparation, treatment interval and long-term effects. A published positive result does not predict your outcome. Hair loss needs its own diagnosis and evidence discussion rather than a skin-treatment promise. A1

Before a decision

Tell the clinician about bleeding or platelet conditions, current illness, previous reactions and all medicines, including anticoagulants. Do not stop prescribed treatment yourself. Suitability may require postponement or further assessment rather than a routine treatment package. A1

Possible complications

Pain, bruising and swelling can follow blood collection or injection. Infection is possible if blood or equipment is contaminated. Added substances and any accompanying procedure have separate risks; the label autologous does not cover them automatically. A1A2

Recovery and reassessment

Aftercare and return to activities depend on what was actually performed. Ask how expected swelling will be distinguished from a complication and whom to contact. Reassess the original concern and any adverse effects before considering another session. A1

Questions about PRP

Is PRP the same as a filler?

No. PRP is a platelet-rich preparation, while fillers aim to add or support volume with particular materials. An immediate swollen appearance does not establish durable benefit; ask exactly what is being injected and why. A1

Does PRP prove that plasma gel works?

No. Plasma gel and PRP have different preparation and physical properties. A small split-face study compared them, but short follow-up and a specific method cannot establish long-term results for every preparation marketed as biofiller. B1

Does using my blood remove the risks?

No. Your blood still needs correct identification and sterile processing. Health conditions, needles and any additional substances remain relevant; individual assessment is necessary even when no donor material is used. A1

Why is sterile handling important?

A CDC investigation linked likely HIV transmission to unsafe cosmetic injection practices at an unlicensed spa. This does not provide a routine PRP complication rate; it demonstrates why blood handling and infection-control standards matter. A2

How many treatments will I need?

There is no universal schedule supported for every concern and preparation. Clarify the rationale, expected limits, reassessment point and total commitment before deciding. Lack of improvement should prompt review rather than automatic repetition. A1

Sources

• A1: American Academy of Dermatology — Platelet-rich plasma and skin
• A2: CDC MMWR — PRP microneedling infection investigation
• B1: Clinical study — Plasma gel versus PRP in periorbital rejuvenation
• R2: FDA — Microneedling devices
• E1: NHS — Eye pain
• E2: NHS — Anaphylaxis
• E3: NHS — Cellulitis