PRP for Hair Loss: How Your Own Blood Can Thicken Thinning Hair

Watching your hair thin out is one of the more quietly distressing things that can happen to any of us. A wider parting, more strands in the shower drain, a scalp that shows through in certain light. It rarely happens overnight, which is part of what makes it so unsettling. You notice it slowly, then all at once.

Platelet-rich plasma, or PRP, is one of the treatments we use at Wellface to help with exactly this. It works with your body rather than against it, using a small sample of your own blood to encourage the hair follicles on your scalp to behave more like they used to. There's no drug, no transplant and no downtime worth speaking of. For the right person, especially someone catching the problem early, it can make a genuine difference to how thick and strong the hair feels.

This post walks through what PRP actually is, how a session runs from start to finish, who tends to benefit most and what you can realistically expect in the months that follow. If you've been putting off doing something about your hair, it's worth understanding what your options are before the thinning progresses further.

What PRP actually is

Your blood is made up of red and white blood cells, plasma and platelets. Most people think of platelets purely in terms of clotting, and that's certainly part of their job. But platelets are also packed with growth factors, the signalling proteins your body releases to repair tissue, build new blood vessels and kick-start healing after any kind of injury.

PRP is simply a concentrated version of the plasma that carries those platelets. By taking a small tube of your blood and separating out the platelet-rich portion, we end up with a fluid that contains a far higher concentration of growth factors than ordinary blood does. When that concentrate is injected into the scalp, it delivers those repair signals directly to the hair follicles.

The follicles themselves don't die off suddenly in most types of thinning hair. They shrink and slow down, spending more time dormant and producing finer, weaker strands each cycle. The theory behind PRP, backed by a growing body of clinical use, is that the growth factors help wake those sluggish follicles back up, improve the blood supply feeding the hair root and lengthen the active growing phase of each hair. The result, over time, is hair that grows in thicker and holds on for longer.

Because the material comes from your own body, the risk of an allergic reaction or rejection is extremely low. There's nothing synthetic being introduced. That's one of the main reasons it appeals to patients who feel wary about medications or surgery.

The three steps of a PRP session

PRP is a straightforward in-clinic procedure, and it helps to know the sequence before you arrive. There's a fair amount of equipment involved, but the process itself is calm and quick.

Step one: drawing the blood

We start much as you would for a routine blood test. A tourniquet goes around the upper arm, and a small tube of blood is drawn using a fine needle. It's the same volume you'd give at a normal GP appointment, so if you've ever had bloods taken you already know what this part feels like. A brief scratch, then it's done.

Step two: spinning it in the centrifuge

The tube then goes into a centrifuge, a machine that spins at high speed. This is where the separation happens. The spinning forces the heavier red blood cells to the bottom and leaves the lighter, platelet-rich plasma sitting above them. It's this golden layer of plasma that we're interested in, and it's carefully drawn off ready for the next step. The whole spin takes only a few minutes, during which you simply sit and relax.

Step three: injecting it into the scalp

The prepared plasma is then reintroduced into the scalp using very fine needles, around 1.5mm, placed across the areas of concern. The injections are shallow and spaced across the thinning zones so the growth factors reach the follicles where they're needed. Most people describe the sensation as small pinpricks or a mild stinging. We can use a numbing cream beforehand to keep you comfortable, and the injecting itself is usually over within fifteen minutes or so.

From arriving to leaving, a full session tends to take around forty-five minutes to an hour. You can drive yourself home and get on with your day.

Who PRP suits best

The single most important thing to understand about PRP is that timing matters. It works by reviving follicles that are struggling, not by creating new ones where none remain. So the earlier you treat thinning hair, the more the follicles have to work with and the better your likely outcome.

It tends to suit people who are in the earlier stages of hair loss, where the hair is thinning and softening but the scalp hasn't gone completely bare. Both men and women can be good candidates. In women, PRP is often used for the diffuse thinning across the crown and parting that can come with hormonal shifts, post-pregnancy changes or the years around menopause. In men, it's frequently used for early pattern thinning at the crown and temples.

It can also help with patchy hair loss, and treatment isn't limited to the top of the head. We can use PRP on the eyebrows and, for men, along the beard where there are sparse or bald patches. Anywhere follicles are present but underperforming is potentially fair game.

Where PRP is less likely to help is in areas that have been bald for years, where the follicles have effectively closed up shop. In those cases we'll be honest with you about what's realistic rather than sell you a course that won't deliver. A consultation exists partly to work out whether you're the sort of candidate who'll see a worthwhile return.

There are a few situations where PRP isn't appropriate, including certain blood disorders, active scalp infections and some medications that affect platelet function. This is all covered during your initial assessment, which is why a proper medical consultation comes first.

What to expect afterwards, and the timeline for results

The immediate aftermath is mild. You might notice some tenderness, slight redness or a little swelling across the scalp where the injections were placed, and this usually settles within a day or so. Most people head straight back to work or the school run. We'll ask you to avoid harsh hair products, vigorous washing, saunas and heavy exercise for the first day to let the scalp settle, but beyond that there are no real restrictions.

Managing expectations on timing is important, because PRP is not an overnight fix. Hair grows slowly, and the follicles need repeated stimulation to shift their behaviour. This is why PRP is delivered as a course rather than a one-off. A typical plan involves an initial run of three to four sessions spaced roughly four to six weeks apart. That loading phase gives the follicles consistent, repeated encouragement over a period of months.

In terms of what you'll notice and when, one of the earliest changes many patients report is reduced shedding. There's simply less hair coming out on the pillow and in the brush. Visible improvements in density and thickness tend to build more gradually, often becoming noticeable around the three to six month mark as newly stimulated hairs grow through and existing hairs strengthen. Because hair has a slow growth cycle, patience genuinely pays off here.

To hold onto the gains, most people benefit from occasional maintenance sessions, often every six to twelve months, depending on how their hair responds and what's driving the thinning in the first place. Hair loss is usually an ongoing process, so think of PRP as managing and improving the situation over time rather than curing it permanently.

How PRP fits alongside other approaches

PRP is one tool among several, and it often works best as part of a broader plan rather than in isolation. If there's an underlying cause behind your thinning, such as an iron or vitamin deficiency, a thyroid issue or a hormonal change, addressing that alongside PRP makes a real difference. We'll always want to understand why your hair is thinning, not just treat the symptom.

Some patients combine PRP with medical treatments or topical products aimed at hair loss, and the two can be complementary. Others prefer PRP precisely because it avoids ongoing medication and uses only their own blood. There's no single right answer, and the best approach depends on the type and stage of your hair loss, your general health and what you're comfortable with.

What PRP is not is a substitute for a hair transplant in cases of advanced, long-standing baldness. Where follicles are genuinely gone, no amount of growth factor will bring them back. That said, PRP is sometimes used to support and strengthen the results of surgical hair restoration. The key, as ever, is an honest conversation about what your particular scalp needs.

Common questions about PRP for hair loss

Does PRP hurt?

Most people find it very tolerable. The blood draw feels like any routine blood test, and the scalp injections feel like small pinpricks. We can apply a numbing cream beforehand to take the edge off, and the injecting portion is over quickly. Some tenderness afterwards is normal and settles within a day.

How many sessions will I need?

Most patients start with a course of three to four sessions spaced four to six weeks apart. Some people benefit from a few more in that initial phase. After that, occasional maintenance sessions once or twice a year help preserve the results. Your exact plan is tailored to your type of hair loss and how you respond.

When will I see results?

The first sign is usually less shedding, sometimes within the first couple of months. Visible improvements in thickness and density tend to appear from around three to six months as the growth cycle responds. It builds gradually, so consistency across the full course matters more than any single session.

Is PRP safe?

Because PRP uses your own blood, the risk of allergic reaction or rejection is very low, which is one of its biggest advantages. The main side effects are temporary and local, such as mild redness, swelling or tenderness at the injection sites. A few medical conditions and medications mean PRP isn't suitable, which is why we always assess your health and history first.

Can PRP be used for eyebrows and beards?

Yes. While the scalp is the most common area, PRP can also be used to encourage growth in sparse eyebrows and in patchy areas of the beard. Anywhere there are follicles that have slowed down rather than disappeared, the same principle applies.

Talk to us about your hair

Hair thinning is easier to influence early than late, so if you've been noticing changes it's worth having a proper look sooner rather than later. At a consultation we'll examine your scalp, talk through what's likely driving the thinning and tell you honestly whether PRP is a sensible option for you or whether something else would serve you better.

Our doctor-led team sees patients for hair restoration at Wellface in Cobham, Esher and Wimbledon. If your hair is on your mind, book a consultation and let's work out the right plan together.