PRP for hair loss: when you'll see a change, and who it works for

You notice more hair in the shower drain. Your parting looks wider in photos. Or your hairline is not where it used to be. Then someone tells you about PRP, and you wonder: does it actually work, and how long until I know?

Here is the honest answer I give in clinic.

First, why is your hair thinning?

This matters more than any treatment. Hair loss has many causes, and they need different answers.

• Pattern hair loss. The most common type. In men it shows at the temples and crown. In women it usually shows as a wider parting. Genes and hormones drive it, and it slowly gets worse over years.
• Shedding after a shock to the body. A high fever, surgery, crash dieting, a stressful time or having a baby can cause heavy shedding about two to three months later. It usually recovers on its own.
• Low iron or thyroid problems. Simple blood tests can find these, and treating them is often the real fix.
• Patchy hair loss or a sore, scarred scalp. These are different conditions and need a dermatologist, not PRP.

So before PRP, I look at your scalp, ask about your health and often ask for blood tests. If PRP is the wrong tool for your type of hair loss, I will tell you.

How PRP works

PRP stands for platelet-rich plasma. I take a small amount of blood from your arm, like a normal blood test. It is spun in a machine in the clinic to separate out a concentrate of platelets, the tiny cells that help wounds heal.

That concentrate is then placed into the scalp with very fine needles. Platelets release growth signals. The idea is that these signals help weak, thinning follicles stay in their growing phase for longer and produce thicker hairs.

Nothing foreign is added. But it only works on follicles that are still there.

When you will see a change

Hair grows slowly, so patience is part of the treatment. A typical timeline looks like this:

• Weeks 1 to 6: nothing visible yet. The scalp may feel tender for a day after each session.
• Months 2 to 3: many people notice less hair falling out.
• Months 3 to 6: thicker-looking hair and better coverage, if it is going to work for you.

The usual starting course is three sessions, four to six weeks apart. I review you with standard photos at about three months, taken the same way each time, because day-to-day mirror checks are not reliable.

If it helps, most people need top-up sessions every few months to keep the result. Pattern hair loss does not stop on its own.

Who it works for, and who it does not

PRP is more likely to help if:

• you have early to moderate pattern hair loss
• the thinning area still has fine, weak hairs, not smooth bare skin
• you are willing to combine it with other proven treatments

PRP is unlikely to help if:

• the area has been completely bald for a long time
• the hair loss is caused by scarring of the scalp
• the real cause is low iron, a thyroid problem or a medicine, and that has not been treated

I do not offer PRP if you have a blood or platelet disorder, take blood-thinning medicines, have an active scalp infection, or are pregnant.

PRP works better as part of a plan

The treatments with the strongest evidence for pattern hair loss are medicines, such as minoxidil applied to the scalp. Some men are also prescribed a tablet called finasteride. These are prescription decisions, and not every medicine is suitable for every person, especially women who may become pregnant.

Many people do well with PRP alongside these treatments rather than instead of them. I will talk you through what fits your situation.

One more honest point: PRP is not made the same way in every clinic. The machine, the amount of blood and the method all vary, and so do the results reported in studies.

What it feels like and what can go wrong

• The treatment: I use numbing cream first. Most people feel many small pricks. It takes about an hour, including the blood draw.
• After: the scalp may feel tender or tight for a day or two. You can usually wash your hair the next day.
• Small risks: mild headache, small bruises, or brief extra shedding in the first weeks. Infection is rare.

How I do things

I start by finding out why your hair is thinning, not by booking a course. That may mean blood tests and a close look at your scalp.

If PRP is right for you, I take clear photos before we start, so we can judge the result honestly at three months. If it is not helping, I will say so, and we will not keep going for the sake of it.

Questions I get asked every week

How many PRP sessions do I need for hair?

Usually three sessions, four to six weeks apart, to start. After that, top-ups every few months if it is helping.

When will I see results?

Less shedding often shows first, at around two to three months. Thicker-looking hair usually takes three to six months.

Does PRP work for women?

Yes, it can help women with pattern thinning, often seen as a wider parting. Checking iron and thyroid levels first is especially important.

Does the result last?

Not on its own. Pattern hair loss continues over time, so most people need maintenance sessions to keep the benefit.

Can PRP replace a hair transplant?

No. PRP supports existing follicles. It cannot create new ones in bald areas. A transplant is a different, surgical option.

Read more about how I prepare and use PRP on my PRP in Dubai page, or book a consultation.

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Sources

• Kanti V, et al. Evidence-based (S3) guideline for the treatment of androgenetic alopecia in women and in men — short version. Journal of the European Academy of Dermatology and Venereology, 2018.
• Gentile P, et al. The effect of platelet-rich plasma in hair regrowth: a randomized placebo-controlled trial. Stem Cells Translational Medicine, 2015.
• Giordano S, et al. Platelet-rich plasma for androgenetic alopecia: does it work? Evidence from meta analysis. Journal of Cosmetic Dermatology, 2017.
• Dohan Ehrenfest DM, Rasmusson L, Albrektsson T. Classification of platelet concentrates: from pure platelet-rich plasma (P-PRP) to leucocyte- and platelet-rich fibrin (L-PRF). Trends in Biotechnology, 2009.