Educational guide
PRP vs PRF: what is the difference?
Both are autologous blood concentrates prepared at the point of care, and the difference starts with one decision: whether the blood is drawn into an anticoagulant. PRP uses one and stays liquid, so it is injected. PRF uses none, so the blood clots during the spin and yields a fibrin matrix. That single choice changes the tubes, the protocol, and what you can do with the result.
This page describes how the two preparations are made and handled. It is not a comparison of clinical results, and nothing here claims that either preparation treats any condition.
What is PRP?
Platelet-rich plasma is autologous whole blood drawn into an anticoagulant, then centrifuged to separate and concentrate the platelet fraction. Because the anticoagulant prevents clotting during processing, the finished preparation stays liquid and can be drawn into a syringe and injected.
Staying liquid is what makes PRP controllable. You can measure the volume, split it across sites, and combine it with other point-of-care preparations. It is also why PRP systems compete on concentration and purity specifications: the output is a defined volume you can characterize.
What is PRF?
Platelet-rich fibrin is prepared from autologous whole blood drawn with no anticoagulant. Clotting therefore begins as soon as the blood is drawn, and a comparatively short, low-speed spin lets a fibrin clot form with platelets and leukocytes caught inside it. The product is that fibrin matrix, not a liquid.
That matrix is handled differently. It is typically placed, packed, or pressed into a membrane rather than injected. A very low-speed variant, usually called injectable PRF, stays fluid briefly and can be injected before it sets, which is why some practices describe PRF as both.
The anticoagulant is the whole difference
Everything else follows from it. Anticoagulant means the clotting cascade is held off, so the sample can be spun hard and long enough to concentrate platelets, and the operator decides later when to activate. No anticoagulant means the cascade is already running, so the spin has to be gentle and brief or you get a clot instead of a usable one.
The practical consequence for a practice is that PRP and PRF are not interchangeable protocols run on the same consumables. They use different tubes and different collection handling, and switching between them is a purchasing decision, not a setting.
PRP and PRF side by side
Preparation and handling characteristics only. No row below is a statement about clinical performance.
| Characteristic | PRP | PRF |
|---|---|---|
| Anticoagulant in the draw | Required | None |
| Spin character | One or two spins, higher speed, protocol defined per kit | Single, comparatively low speed and short |
| Physical form of the output | Liquid | Fibrin clot or membrane; fluid briefly in the injectable variant |
| How it is delivered | Drawn into a syringe and injected | Placed, packed, or pressed into a membrane |
| Output volume | Defined and measurable per kit | Determined by the clot that forms |
| Leukocyte profile | Selectable on systems built for it | Retained in the matrix by design |
| Consumables | Anticoagulated draw plus a concentrating kit | Plain tubes, no anticoagulant |
| Where each is commonly seen | Orthopedics, sports medicine, pain, aesthetics | Dental and oral surgery, wound care, some aesthetic use |
Definitional and procedural characteristics of the two preparation methods, drawn from general point-of-care biologics practice. Not device data, and not a comparison of outcomes. PRP rows describe the preparation class generally, not any single system.
Does PRF need a different centrifuge?
It needs a machine that can run the low-speed, short protocol the PRF method calls for, and it needs plain tubes rather than an anticoagulated draw. A centrifuge validated for PRP kits is validated for those kits and their protocols, which is the point of a preset system.
So the honest answer is: do not assume your PRP platform covers PRF. Before you plan a PRF service on equipment you already own, confirm the protocol and consumables with the manufacturer, exactly as you would before running any preparation a device was not sold to run. Our centrifuge buyer's guide covers why the kit and the machine are a matched pair.
Which one does your practice need?
Start from the delivery, not the biology. The form of the output decides more about fit than anything else.
- You inject into joints, tendons, or soft tissue. You need a liquid you can measure and place, which is PRP.
- You need something to sit in or over a site. A fibrin membrane is a physical handling property PRP does not have. That is PRF territory.
- You want a documented dose per case. PRP output is a defined volume you can characterize and record; a clot is not.
- You run both. Plan them as two consumable lines with two draw protocols, and confirm equipment coverage for each.
What PRP Direct supplies
We distribute the Emcyte point-of-care line, which is PRP, bone marrow concentrate, and adipose. We do not want you buying the wrong thing: if your protocol is genuinely PRF, say so when you contact us and we will tell you plainly that we are not your supplier for it rather than sell you around it. If you are choosing between the two, the guides on this site are written to help you decide before anyone quotes you.
Common questions
What is the main difference between PRP and PRF?
The anticoagulant. PRP is drawn into one, so it stays liquid and is injected. PRF is drawn without one, so the blood clots during a short low-speed spin and produces a fibrin matrix that is placed rather than injected. Every other difference follows from that choice.
Is PRF better than PRP?
Neither is better in the abstract, and PRP Direct does not claim clinical superiority for either. They produce different physical products for different delivery methods. A liquid you can measure and inject and a fibrin membrane you place are not competing versions of one thing.
Can I make PRF with a PRP kit?
No. A PRP kit is built around an anticoagulated draw and a validated concentrating protocol, and PRF requires a plain draw and its own low-speed protocol. Running a kit outside the instructions for use means the preparation no longer follows the manufacturer's documented method.
Does PRP Direct sell PRF systems?
No. We distribute the Emcyte point-of-care line: PRP, bone marrow concentrate, adipose, and the A2M ultrafiltration component. If your protocol calls for PRF, we will tell you we are not the right supplier rather than sell you something adjacent.
Running PRP? Get it quoted properly.
Tell us the cases you run and we'll send itemized pricing on the systems that match, within one business day. No login wall.
Request a quotePRP Direct distributes 510(k)-cleared autologous blood-processing devices. Clearance covers how the device processes blood; it is not a clearance of the prepared PRP to treat any condition, and no PRP therapy is FDA-approved for a specific indication. Manufacturer specifications are not claims of clinical efficacy. This page is general education and is not medical advice.