The use of platelet rich fibrin under eyes involves drawing a small amount of your own blood, spinning it in a centrifuge to concentrate the platelets, and injecting the liquid PRF into the thin skin of the lower eyelid area. The goal is to stimulate collagen and improve skin quality, which can soften fine lines, crepey texture, and mild hollowness. PRF is not a filler: it works gradually over weeks, usually needs a short course of sessions, and its best evidence is for skin quality rather than deep hollows or dark circles caused by pigment or anatomy.
As a hematologist, I find PRF interesting because it borrows directly from the biology of wound healing. This guide explains what PRF is, how it works, what results are realistic, and who should avoid it.
What Is Platelet Rich Fibrin?
Platelet rich fibrin (PRF) is a second-generation platelet concentrate made from your own blood. Unlike platelet rich plasma (PRP), it is prepared without anticoagulants or activating additives. The blood is spun at lower speeds, which leaves platelets, some white blood cells, and fibrinogen in the upper layer. For a detailed look at preparation methods, see our comprehensive overview of platelet-rich fibrin.
Because nothing stops the natural clotting process, the liquid slowly turns into a soft gel of fibrin, the same protein mesh that stabilizes a normal blood clot. For injection under the eyes, clinicians use a liquid form, often called injectable PRF, drawn up and injected within minutes before it sets. PRF was first developed for dental and oral surgery and has since spread into other areas of regenerative medicine, including aesthetics.
| Feature | PRP | PRF | Hyaluronic acid filler |
|---|---|---|---|
| Source | Your own blood | Your own blood | Manufactured gel |
| Anticoagulant added | Yes | No | Not applicable |
| How it works | Short burst of growth factors | Fibrin mesh releases growth factors more slowly | Physically adds volume |
| Onset of results | Gradual, weeks | Gradual, weeks | Immediate |
| Best suited to | Skin quality | Skin quality, fine lines, mild hollowing | Moderate to marked hollows |
How PRF Works Under the Eyes
Platelets are best known for stopping bleeding, but they also carry granules packed with signaling proteins. When they are activated, they release growth factors including platelet-derived growth factor (PDGF), transforming growth factor-beta (TGF-β), and vascular endothelial growth factor (VEGF).
These signals recruit and stimulate fibroblasts, the skin cells that make collagen and elastin, and encourage new small blood vessels to form. PDGF in particular plays a central role in vascular biology and tissue repair. The fibrin mesh acts as a scaffold that holds platelets in place, so growth factors are released over a longer period than with PRP.
In short, PRF mimics a controlled, small-scale healing response. Its effect is biological remodeling rather than instant volume, which is why patience matters.
What PRF Can and Cannot Treat
Under-eye concerns have different causes, and matching the cause to the treatment is the most important step in assessment.
- Thin, crepey skin and fine lines: the best match for PRF, because collagen stimulation thickens and firms the skin.
- Mild hollowing: may improve modestly over a course of treatments.
- Dark circles from thin skin: may look better when the skin becomes thicker and less translucent over underlying blood vessels.
- Dark circles from pigmentation: usually respond better to skincare, sun protection, or pigment treatments.
- Deep tear troughs and fat bags: caused by bone and fat anatomy; fillers or surgery are more effective.
Clinical assessment is visual: the clinician examines skin thickness, color, hollowing, and puffiness in different lighting. There is no blood test that predicts who will respond.
The Procedure, Step by Step
- Consultation: medical history, medications, and a discussion of realistic goals.
- Blood draw: a small volume is taken from the arm, similar to a routine blood test.
- Centrifugation: the sample is spun for several minutes to separate the PRF layer.
- Injection: numbing cream may be applied, then PRF is placed with a fine needle or blunt cannula, or combined with microneedling.
- Aftercare: cold compresses, sun protection, and avoiding makeup and rubbing for a short period.
The appointment usually takes under an hour. Clinics commonly recommend a course of two to three sessions spaced about a month apart, with results building over the following months and maintenance treatments later as natural aging continues.
Before and after care
Your clinician may ask you to avoid aspirin and non-steroidal anti-inflammatory drugs for several days before treatment, because they reduce platelet function and can increase bruising. Never stop a prescribed blood thinner without talking to the doctor who prescribed it.
Side Effects and Who Should Avoid PRF
Because PRF comes from your own blood, allergic reactions and rejection are not expected. The under-eye skin is delicate, however, and short-term effects are common:
- Swelling and puffiness for a day or several days
- Bruising, which can last a week or more
- Redness and tenderness at injection points
- Rarely, infection, or lumps if technique is poor
From a hematology standpoint, PRF depends on healthy platelets and normal clotting. People with low platelet counts, platelet function disorders, or other blood coagulation disorders may get poor results and more bruising. Others who should discuss suitability carefully include those taking anticoagulants, people with active skin infection around the eyes, anyone with an active blood cancer, and pregnant or breastfeeding women. For background on how platelets function, see our platelets guide.
Key Takeaways
- PRF under the eyes uses your own concentrated platelets to stimulate collagen gradually.
- It suits thin, crepey skin and fine lines better than deep hollows or pigment-driven dark circles.
- Expect a course of treatments, temporary swelling or bruising, and results over weeks to months.
- Choose a qualified medical practitioner, and disclose any bleeding disorder or blood-thinning medication.
Frequently Asked Questions
How long does PRF under the eyes last?
Because PRF stimulates your own collagen, improvements can persist for many months, but the natural aging process continues. Many clinics suggest periodic maintenance sessions, and duration varies from person to person.
Is PRF better than filler for under-eye hollows?
They do different jobs. Filler adds immediate volume for deeper hollows, while PRF improves skin quality gradually. Some patients have both, with PRF used to improve the thin skin over the area.
Does PRF under the eyes hurt?
Most people describe mild discomfort. Numbing cream and fine needles or cannulas keep it tolerable, and the blood draw feels like a routine blood test.
Is PRF safe if I have a bleeding disorder?
It depends on the condition. Low platelet counts or platelet function disorders can reduce the quality of the PRF and increase bruising around the eyes. Speak with your hematologist before booking, and tell the treating clinician about every medication you take.
When will I see results?
Early swelling can make the area look fuller for a few days, but that settles. True improvement in skin texture usually becomes visible over several weeks and continues after a full course.
