Hair Loss PRP vs. Meds: Which Comes First?

For thinning at the crown, PRP works best as an add-on to hair loss medicine, not a replacement for it. The FDA has approved two treatments for male pattern hair loss: finasteride (a daily pill) and minoxidil (a scalp solution or foam). PRP isn't one of them, and studies of PRP on its own still point in different directions.

Is PRP a Replacement for Hair Loss Meds?

Is PRP a Replacement for Hair Loss Meds?

Not really. Think of the two medicines as the foundation and PRP as an optional extra. Finasteride slows hair loss and can help new hair grow, and it tends to work better when you start soon after you first notice thinning. Minoxidil can help early hair loss and stop further shedding, but it can't regrow a full head of hair. It also tends to work better alongside another treatment, which is where PRP comes into the picture.

Here's the part people often miss: both medicines only work while you keep using them. Stop finasteride and hair loss starts again. Stop minoxidil and you lose what it gave you. That's why the trials that tested PRP with minoxidil kept everyone on minoxidil the whole time and simply added PRP for one group.

Which medicine fits you depends on the cause of your hair loss, your overall health, and your age. A doctor can confirm that the thinning is male pattern hair loss before you build a plan around it.

How Do Finasteride, Minoxidil, and PRP Compare?

How Do Finasteride, Minoxidil, and PRP Compare?

The biggest difference isn't how they're used. It's how you keep them going. The medicines are a daily habit, while PRP means a clinic visit every few months.

If you only take one thing from this table, make it this: meds are daily and ongoing, and PRP is added at set intervals.

That timing also shapes when PRP makes sense. If you start a medicine and PRP in the same month, it's hard to tell a few months later which one made the difference. Whether you've already given your medicine a fair run, or you're still waiting for it to kick in, changes when adding PRP is worth talking about.

What Happens During a PRP Session, and How Often?

What Happens During a PRP Session, and How Often?

A small amount of your blood is drawn and spun in a machine that separates it into layers. The plasma, rich in platelets, is then injected into the thinning areas of your scalp. The whole procedure takes about 10 minutes, and there's usually no downtime. Most people come back once a month for 3 months and then once every 3 to 6 months.

PRP (platelet-rich plasma): Plasma from your own blood with a high concentration of platelets. Growth factors inside platelets are thought to support shrinking hair follicles.

In the first few months, the change people tend to notice first is losing less hair. The five trials that added PRP to minoxidil all used monthly sessions, with 3 to 6 sessions in total. How the blood was prepared varied, though. Some spun it once and others twice, so results from one PRP study don't carry over neatly to another.

What Happens During a PRP Session, and How Often?

How Much Does PRP Actually Add?

How Much Does PRP Actually Add?

On its own, PRP gives mixed results. In one trial, 35 people had a patch of scalp treated with PRP and a matching patch on the other side treated with saltwater (saline), once a month for 3 months. Three months after the last session, hair density on the PRP side went from 151 to about 171 hairs per square centimeter. The saline side rose too, from 151 to about 167, and the difference between the two sides wasn't meaningful. The authors noted that PRP may have spread to the saline side, which could blur the comparison.

How Much Does PRP Actually Add?

A pooled look at 9 trials with 238 patients found that PRP raised hair density at 3 and 6 months compared with placebo injections. Hair count and hair thickness, however, weren't different from placebo. When five trials that added PRP to minoxidil were pooled, the PRP group had higher density at 1, 3, and 5 to 6 months. Three of those five trials carried a high risk of bias, and the certainty of the evidence was rated low to very low. How much you'd see depends on your own scalp, and results differ from person to person.

What's Normal After PRP, and What Isn't?

What's Normal After PRP, and What Isn't?

Pain at the injection sites, redness, and tiny pinpoint spots of bleeding were all reported in trials. Some people also had an itchy scalp or a headache. Most people go back to their day without needing time off.

Don't wait for your next appointment if you notice any of the following. Get medical care right away.

• Pain at the injection sites that keeps going instead of settling
• Swelling of the scalp that gets worse
• A fever

Before treatment, tell your provider if you take blood thinners, have a blood disorder, or recently had any other scalp procedure.

When Does Adding PRP Make Sense for You?

Bring a few details to your consultation: the name of the hair loss medicine you use, when you started it, and whether you use it every day without gaps. Taking a photo of your crown every 3 months, in the same light and from the same angle, makes it much easier to judge the change yourself.

If you're in Seoul and want STON Clinic to take a look, mention when you first noticed the thinning, what you're using now, and whether hair loss runs in your family. A useful question to ask is: "Should I stay on medicine alone for now, or is it time to add PRP? And if I add it, how far apart should my maintenance sessions be?"