Growth factor concentrate (GFC) for hair: how it differs from PRP

Walk into many hair clinics in Malaysia today and you may be offered a choice: standard PRP, or a newer option called GFC, short for growth factor concentrate. GFC is often presented as a purer, more concentrated version of PRP, with fewer red blood cells, more growth factors and better results. It usually costs more. You may also hear related names such as CGF, PRF or i-PRF, which adds to the confusion.

This guide explains what GFC is, how it differs from standard PRP, what the clinical studies and recent reviews actually found, and how to decide whether it is worth paying extra. This is general information, not personal medical advice. For background on PRP itself, see PRP hair treatment.

Short answer

• GFC is a blood-derived treatment like PRP. It is made from your own blood, but the processing is designed to release growth factors from platelets before injection. Methods differ between kits and clinics.
• Some small studies favour GFC or related concentrates. A 2026 randomised trial in 74 women with female pattern hair loss found greater increases in hair count with CGF and i-PRF than with PRP after 24 weeks ¹.
• The overall evidence is still weak. A 2026 systematic review of ten studies concluded that no definitive conclusions about the superiority of GFC over PRP can be drawn, because studies were small and varied ². A 2026 meta-analysis also found a high risk of bias and very high heterogeneity, and called its findings hypothesis-generating ³.
• Side effects are usually mild. Reviews report mainly injection pain, redness and swelling ³.
• Neither replaces proven medicines. Minoxidil, and finasteride for suitable men, have the strongest evidence for pattern hair loss ⁴. GFC and PRP are generally add-ons.

What PRP is, briefly

Platelet-rich plasma (PRP) is made by drawing a small amount of your blood and spinning it in a centrifuge. The platelet-rich layer is collected and injected into thinning areas of the scalp. Platelets contain growth factors, which are thought to support follicles in the growth phase of the hair cycle. A meta-analysis of nine randomised trials found that PRP increased hair density at 3 and 6 months compared with placebo in androgenetic alopecia ⁵. Results vary partly because clinics prepare PRP in different ways.

What GFC is

Growth factor concentrate is also made from your own blood. The general idea is that, during processing, platelets are activated so that they release their growth factors into the liquid before it is injected. The final preparation is described by manufacturers as containing fewer cells and a higher level of released growth factors than standard PRP.

How exactly this is done depends on the kit or protocol. Some use special tubes and activating agents, and some use particular centrifuge steps. Because there is no single universal method, two clinics both offering "GFC" may not be giving you the same preparation. This matters because the evidence for one protocol cannot automatically be applied to another.

Related names: CGF, PRF and i-PRF

You may also see these terms:

• CGF (concentrated growth factors): a platelet concentrate made with a variable-speed centrifuge protocol, originally used in dental and maxillofacial surgery. It can be prepared as a gel or liquid.
• PRF and i-PRF (platelet-rich fibrin, and its injectable form): made with lower-speed spinning and usually without anticoagulant, so the preparation contains fibrin, which may release growth factors more slowly.
• PRGF (plasma rich in growth factors): a standardised preparation from one specific system.

These are all part of the same broad family of autologous platelet concentrates. Clinics sometimes use the names loosely, so it is reasonable to ask exactly how the clinic's product is made rather than relying on the label.

What the studies show

The systematic review

A 2026 systematic review searched five major databases for studies of PRP and GFC in androgenetic alopecia published from 2019 to March 2026 ². Ten studies met the criteria, including randomised trials and observational studies. Both PRP and GFC showed improvements in hair density, hair thickness and patient satisfaction. Several studies reported more favourable outcomes with GFC.

However, the authors stressed that these findings came from a limited number of small, methodologically different studies. Preparation methods, treatment schedules, outcome measures and follow-up times varied, and some studies combined treatments. Their conclusion was that no definitive conclusions regarding the comparative efficacy or superiority of GFC over PRP can be drawn, and that well-designed, adequately powered randomised trials are needed.

The meta-analysis

A 2026 meta-analysis of intralesional growth factor injections in androgenetic alopecia included twelve studies with 745 patients ³. It reported progressive increases in hair density with GFC over twelve months and increases with PRP at six and twelve months, and high patient satisfaction. Adverse events were mild.

But the same paper found that randomised trials had a high risk of bias, non-randomised studies had serious to critical bias, and heterogeneity was very high. The authors described their findings as hypothesis-generating until larger, standardised, double-blind trials with long-term follow-up are done. In plain terms, the numbers are interesting but not reliable enough to compare products with confidence.

Two individual trials

• Women with female pattern hair loss: A prospective multicentre randomised trial in China gave four sessions of PRP, i-PRF or CGF at four-week intervals ¹. Seventy-four patients completed the study. Hair count increased in all three groups. The increase at 24 weeks was greater with CGF (about 27%) and i-PRF (about 27%) than with PRP (about 15%). Hair diameter improved in all groups with no significant difference between them. This is one of the better-designed comparisons, but it is still a single trial with a short follow-up.
• Split-scalp study: A small randomised, double-blind trial in 20 patients treated one side of the scalp with PRP plus microneedling and the other with PRP plus microneedling plus CGF ⁶. The side with CGF showed greater increases in hair count and density at six months. With only 20 people and combined treatments, this is early evidence.

What this adds up to

The direction of the early evidence is encouraging for these newer concentrates, but it is not strong. Most studies are small, follow-up is short, methods differ, and few compare GFC directly against well-prepared PRP in blinded trials. It is reasonable to say that GFC may perform similarly to, or possibly better than, PRP in some settings, and that the question is not settled.

Safety

Because GFC and its relatives are made from your own blood, the risk of allergic reaction or transmitted infection from donor material is low. The main side effects reported are similar to PRP: pain during injection, redness, swelling, tenderness, mild headache and small bruises ³. Some people feel faint during blood drawing. A 2026 study looked at ways to reduce injection pain with these concentrates, which reflects how common discomfort is.

The usual precautions for PRP also apply. Tell your doctor if you have a bleeding or platelet disorder, take blood thinners or certain supplements, have an active scalp infection, are pregnant, or have a history of cancer. Sterile technique and proper handling of the blood sample are essential, so ask who prepares the sample and where.

Cost and value

GFC is commonly priced higher than standard PRP in Malaysia, but prices vary by clinic, kit and number of sessions. This guide does not quote figures. What matters most is the total cost of a full course, including any maintenance sessions and medicines prescribed alongside. For PRP pricing, see PRP hair treatment price in Malaysia.

When you compare, consider whether the extra cost is buying stronger evidence or mainly a different label. A well-prepared PRP course combined with a proven medicine may be good value. If you choose GFC, ask the clinic to explain what you get for the higher price and how results will be measured.

Who might consider GFC

GFC and PRP are mainly studied in androgenetic alopecia, also called male or female pattern hair loss. They may be discussed for people with a confirmed diagnosis who want to add a procedure to medicine, or who cannot use certain medicines. Evidence for other conditions, such as alopecia areata or shedding after illness, is much weaker, and other causes need their own treatment.

They are not a first step for unexplained hair loss. Patchy bald spots, scalp pain, redness, scaling, sudden heavy shedding or hair loss with other symptoms need assessment first. See hair loss treatment in Malaysia. For a broader comparison of newer options, see exosomes vs PRP and non-surgical hair loss treatment in Malaysia.

Life in Malaysia

GFC is often promoted through social media posts and clinic packages, sometimes bundled with microneedling, laser caps or scalp facials. Packages of many sessions paid upfront are common. In hot and humid weather, sweating and scalp redness after injections are normal for a day or so, so follow aftercare advice about washing, exercise and wearing a helmet or tudung. If you ride a motorcycle to work, ask how soon you can wear a helmet after the session.

If you are fasting during Ramadan, ask whether the blood draw and procedure are best scheduled after buka puasa to reduce the chance of feeling faint.

Common myths

• "GFC is just stronger PRP, so it must be better." Different preparation does not automatically mean better results. Direct comparisons are few and small.
• "No red blood cells means no side effects." Injection pain, swelling and redness still happen.
• "One session is enough." Most studies used several sessions and reviewed results months later.
• "GFC works for all hair loss." Most evidence is in pattern hair loss.
• "Since it is from my blood, the method doesn't matter." Preparation affects what is injected, so the method matters.

Common mistakes

• Choosing a procedure before getting a diagnosis.
• Stopping minoxidil or finasteride after starting GFC.
• Judging results from photos taken in different lighting or angles.
• Paying for a large package without a review point at around three to six months.
• Assuming that every clinic's "GFC" is the same product.
• Ignoring signs of another cause, such as iron deficiency or thyroid problems.

How a doctor assesses hair loss

A proper assessment includes when the hair loss started, family history, medicines, diet, recent illness, childbirth or stress, and menstrual history for women. The doctor examines the scalp, often with a dermatoscope, looking at hair diameter, redness, scaling and the pattern of thinning. Blood tests such as full blood count, ferritin and thyroid function may be suggested depending on the history. Standardised baseline photos and, ideally, hair counts in a marked area help to measure results fairly.

Questions to ask your doctor

1. What is my diagnosis, and is GFC appropriate for it?
2. How is your GFC prepared, and which kit or protocol do you use?
3. What evidence do you rely on for this method?
4. How does it compare with your PRP in preparation and cost?
5. How many sessions do you suggest, and when will results be reviewed?
6. Should I continue or start minoxidil or finasteride alongside it?
7. What side effects should I expect, and how is pain managed?
8. What is the total cost of the course, including maintenance?

The bottom line

GFC is a blood-derived treatment closely related to PRP, designed to deliver released growth factors with fewer cells. Early studies and reviews are encouraging, and some report better results than standard PRP, but the evidence is small, varied and at high risk of bias, so it is not yet possible to say that GFC is clearly better. If you are considering it, get a clear diagnosis first, keep proven medicines in place, ask exactly how the preparation is made, agree on how results will be measured, and check that your doctor is registered with the Malaysian Medical Council ⁷.

Frequently asked questions

What is GFC for hair?

GFC stands for growth factor concentrate. Like PRP, it is prepared from your own blood. The processing is designed to release growth factors from platelets before injection, and the exact method depends on the kit or protocol used.

Is GFC better than PRP?

Some small studies reported better results with GFC or related concentrates, but a 2026 systematic review concluded that no definitive conclusions on superiority can be drawn because the studies were small and varied.

Is GFC the same as CGF or PRF?

Not exactly. CGF (concentrated growth factors) and i-PRF (injectable platelet-rich fibrin) are other platelet concentrates made with different centrifuge settings. Names are used loosely, so ask the clinic exactly how theirs is prepared.

Is GFC safe?

Because it comes from your own blood, the risk of allergy is low. Reviews report mostly mild side effects such as injection pain, redness and swelling. The same precautions as PRP apply for blood disorders and blood thinners.

How many GFC sessions are usually done?

Protocols vary. Many studies used a short series of sessions about four weeks apart, then reviewed results at around six months. There is no single standard schedule.

Does GFC hurt?

Scalp injections are uncomfortable for most people. Clinics often use numbing cream, cooling or nerve blocks. Ask what pain control is offered.

Can GFC replace minoxidil or finasteride?

No. GFC, like PRP, is generally discussed as an add-on. Minoxidil, and finasteride for suitable men, remain the treatments with the strongest evidence.

What should I ask before choosing GFC?

Ask for your diagnosis, how the GFC is prepared, what evidence the clinic relies on, how results will be measured, the full course cost, and whether the doctor is registered with the Malaysian Medical Council.

Educational content. Not medical advice.