PRP for Hair Loss and Thinning: How Your Own Blood Can Rebuild Fuller Hair

Hair loss rarely arrives overnight. For most people it creeps in slowly, a wider parting here, a thinner ponytail there, more strands than usual left on the pillow or in the shower. By the time it becomes obvious in the mirror, the follicles that produce each hair have often been struggling for a while. That early stage, when the hair is still there but weakening, is exactly where PRP does its best work.

PRP stands for platelet-rich plasma, and it is one of the more elegant treatments in aesthetic medicine because the active ingredient comes from you. There is no synthetic drug, no foreign material, no incision. I simply take a small sample of your blood, concentrate the part of it that carries your body's own repair signals, and place that concentrate back into the scalp where the follicles need it most.

I describe PRP hair rejuvenation as a treatment for people who are catching the problem early. If you have noticed thinning, a change in hair texture, or the first signs of loss, this is the moment to act. PRP is far less effective once hair has been completely lost, so coming in sooner genuinely matters.

What PRP actually is and how it works

Your blood is made up of red blood cells, white blood cells, plasma and platelets. Platelets are best known for helping blood to clot, but they also carry a rich store of growth factors, the signalling proteins your body releases to trigger healing and tissue repair. When you cut yourself, platelets rush to the site and release these growth factors to kick-start recovery. PRP borrows that same natural mechanism and directs it towards the hair follicles.

The growth factors inside platelets include platelet-derived growth factor, vascular endothelial growth factor, epidermal growth factor and insulin-like growth factor, among others. In the scalp, they do several useful things at once. They improve the blood supply around the follicle, they help move follicles from the resting phase into the active growing phase, and they support the cells that determine how thick and healthy each new hair will be.

As the doctor in our reel puts it, the plasma holds all of the growth factors, amino acids and healing capacity of the blood, and PRP is simply a way of putting that healing capacity back into the scalp. The aim is not to create brand new follicles from nothing. It is to wake up and strengthen the follicles you still have, so they produce more hairs and thicker hairs across the treated area.

Why early intervention matters

A follicle that has become dormant or miniaturised can often be coaxed back into better function. A follicle that has been gone for years cannot. This is the single most important thing to understand about PRP. It is a treatment for hair you are at risk of losing, not a replacement for hair that has already gone. People who start when they first notice thinning tend to be delighted with the results. Those who wait until an area is bald are usually better suited to a hair transplant, sometimes combined with PRP afterwards.

Who PRP is for

PRP suits men and women in the early to moderate stages of hair thinning. The most common reason people seek it out is androgenetic hair loss, the gradual pattern thinning driven partly by genetics and hormones that affects a large share of the population. It can also help with general reductions in hair quality and density, and it is often used to support the scalp after a hair transplant.

Women who notice their parting widening or their overall volume dropping, particularly around the crown or the temples, are frequently good candidates. So are men in the earlier stages of a receding hairline or thinning at the crown, before those areas become bare. Because PRP uses your own blood, it avoids the concerns some people have about medications or foreign substances, which makes it an appealing option for those who want a natural, low-risk approach.

There are some situations where PRP is not appropriate or needs careful discussion first. These include certain blood disorders, active scalp infections, people on particular blood-thinning medications, and anyone whose hair loss has a specific medical cause that should be treated in its own right. This is why every course I run begins with a proper consultation, so I can confirm the pattern of your hair loss and make sure PRP is genuinely the right choice for you.

PRP after a hair transplant

One of the most valuable uses of PRP is alongside hair transplant surgery. I regularly see patients who have had a transplant and want to protect that investment. The typical protocol is three sessions of PRP soon after the surgery, which helps the transplanted follicles settle, supports healing and improves the texture of the new growth.

Many people find that hair grown from a transplant has a slightly different quality to their original hair. PRP can help refine that texture and keep the surrounding native hair, which was not transplanted, in the best possible condition. Combining the two treatments tends to give a more even, natural-looking result over time.

What a PRP session involves

The whole appointment usually takes under an hour, and the process is straightforward. It comes down to three stages.

First, a small amount of blood is drawn from your arm, much like a routine blood test. Second, that sample is placed into a centrifuge, a machine that spins at high speed and separates the blood into its layers. The red blood cells sink to the bottom, the platelet-poor plasma rises to the top, and in between sits the golden layer I am after, the platelet-rich plasma. Third, that concentrated plasma is drawn up into a fine syringe and delivered into the scalp across the areas that need it.

In the reel you can see a little microneedling being used as part of the treatment. Creating tiny controlled channels in the scalp helps the plasma reach the level of the follicles and adds its own mild stimulation to the skin, which can enhance the overall effect. The plasma may be injected directly, applied through microneedling, or both, depending on my assessment on the day.

Does it hurt, and is there downtime?

Most people tolerate PRP well. The blood draw feels like any other, and the scalp work causes mild discomfort rather than real pain. I can apply numbing where needed to keep you comfortable. Afterwards the scalp may feel a little tender and look slightly pink or show some small pinpoint marks, but these settle quickly.

There is very little downtime. Most people return to their normal day straight after the appointment. I usually suggest leaving the hair unwashed for the rest of the day, avoiding heavy exercise, saunas and swimming for a day or two, and steering clear of harsh styling products or hot tools for a short while. Skipping alcohol and anti-inflammatory painkillers around the treatment can also help, since these can interfere with the platelet activity we are relying on.

Results, timelines and keeping them

PRP is not an instant fix, and it is worth setting expectations honestly. Hair grows slowly, so the changes appear over months rather than days. Many people notice reduced shedding first, sometimes within the first few weeks, followed by gradual improvements in thickness and density. Meaningful visible change typically becomes apparent from around three to six months into treatment.

For that reason PRP is delivered as a course rather than a one-off. A common starting protocol is three to four sessions spaced roughly four to six weeks apart. This initial series builds up the stimulation the follicles need. After that, maintenance sessions every few months, often somewhere in the range of every three to six months, help hold and extend the results.

Consistency is one of the clearest predictors of long-term satisfaction. People who keep up their maintenance appointments tend to protect their results far better than those who stop after the first few sessions. Hair loss, particularly the genetic kind, is an ongoing process, so PRP works best as a treatment you return to rather than a single event. I will tailor the exact schedule to your hair, your goals and how you respond.

Common questions about PRP for hair

Is PRP safe?

Because PRP uses your own blood, the risk of allergic reaction or rejection is extremely low. The main considerations are around the blood draw and the injections themselves, which is why it should always be carried out by trained medical professionals in a clinical setting. During your consultation I will review your medical history and any medications to confirm you are a suitable candidate.

How is PRP different from a hair transplant?

A hair transplant physically moves follicles from one part of the scalp to another and is a surgical procedure. PRP is non-surgical and works by stimulating the follicles you already have. The two are not really competitors. PRP is ideal for earlier thinning and for maintaining existing hair, while a transplant addresses areas that are already bare. Many people use both, with PRP supporting the results of surgery.

Will PRP work for complete baldness?

No. PRP needs living follicles to work on. If an area has been completely bald for a long time, the follicles are no longer there to respond. This is why I stress the value of starting early, while there is still hair to strengthen and protect.

How soon will I see a difference?

Most people see reduced shedding within the first month or two, with improvements in thickness and fullness developing gradually over three to six months. Because the effect builds across the initial course of sessions, it is best judged over the whole treatment plan rather than after a single visit.

How many sessions will I need?

A typical starting course is three to four sessions a few weeks apart, followed by maintenance every few months. The precise number depends on the degree of thinning and how your hair responds, which is something I will map out with you once I have assessed your scalp.

Speak to me about your hair

Thinning hair can quietly chip away at your confidence, and the earlier you address it, the more options you have. PRP gives me a natural, low-risk way to strengthen the hair you still have and improve the overall quality and texture of your scalp, using nothing more than your own blood and its remarkable capacity to heal.

If you have noticed changes in your hair and want to understand what is driving them, book a consultation with me at our Cobham, Esher or Wimbledon clinics. I will examine your scalp, talk through whether PRP is right for you, and build a plan around your hair and your goals.