Microneedling vs PRP for Hair Loss

Microneedling: A pen or roller of fine needles makes thousands of tiny controlled punctures in the skin, which sets off healing and new collagen. It is used mainly for indented acne scars and rough texture. It makes them shallower over a course of sessions, not gone.

PRP for Hair Loss: Blood is drawn from your arm, spun to concentrate the platelets, and injected into the thinning parts of the scalp. It can thicken hair that is still there. It does not bring back hair that has been gone for years, the evidence is mixed, and the effect fades once you stop.

Reviewed by Dr. Schwarz, Board-Certified Dermatologist
Last updated: 10/22/2026

Editorial illustration for Microneedling, based on the entry’s treatment or equipment reference.

Editorial illustration for PRP for Hair Loss, based on the entry’s treatment or equipment reference.

Choose if Key differences What is it?What it treats Treatment areas Skin tones How it works Before your treatment Day of treatment After your treatment Risks Cost Questions Related

Choose Microneedling if…

Choose for indented acne scars and rough texture with little downtime and low pigment risk — shallower, not gone.

Rolling or boxcar acne scars
Deeper skin tone, where lasers are riskier
You can plan 3–6 sessions

Choose PRP for Hair Loss if…

Choose as an add-on for thinning hair you still have — evidence is mixed and the effect fades without maintenance.

Early thinning, not long-bald areas
Already using minoxidil or finasteride
You can budget for ongoing sessions

Often combined

Can you have both?

Often done in the same session for hair loss: microneedling helps PRP reach the follicles.

Key differences

● Microneedling

● PRP for Hair Loss

DowntimeNone → 2+ weeks

1–2 days

PainMinimal → Needs anesthesia or sedation

Mild

Moderate

Results showImmediately → 3+ months

1–3 months

3+ months

How long it lastsWeeks → Years or permanent

Years or permanent

3–6 months

Visits neededOne → Every few months

A longer series (4–6+)

Every few months

Cost per visit$ → $$$$$

$$$

ReversibleYes, can be undone → No, permanent

No, permanent

No, wears off

What is it?

Microneedling

PRP for Hair Loss

What is it?

It creates controlled punctures.

Fine needles puncture the skin in a controlled way.

It treats scars and texture.

Results depend on device, depth and technique.

It differs from RF microneedling.

No radiofrequency energy is involved.

Added substances change the risk.

Devices are not cleared for use with every serum or blood product.

It uses your own blood.

Platelet-rich plasma is concentrated and injected into the scalp.

It is studied for pattern loss.

Most evidence concerns androgenetic alopecia.

Methods vary.

Preparation and evidence differ between clinics.

Diagnosis comes first.

It should not delay established treatment.

What it treats

Evidence level

Microneedling

PRP for Hair Loss

Strong evidenceMost established uses

Acne Scarring

Improves rolling and boxcar scars.

Rolling Scars

Good results with a series.

—

Moderate evidenceSome supportive research

Two areas of fair skin side by side on a hip. New pink-red bands sit above, and older flat silvery-white bands below, with only a small difference in color between the pale marks and the skin around them.

Stretch Marks

Softens older marks.

A relaxed forehead with faint shallow horizontal fine lines.

Wrinkles and Fine Lines

Improves texture.

—

Limited evidenceEarly or small studies

—

AI-generated educational illustration: Crown hair thinning with hair retained around the sides on a light scalp.

Male Pattern Hair Loss

Modest thickening.

A widened center part with thinning hair on the scalp.

Female Pattern Hair Loss

Modest thickening.

Little evidence

Ice Pick Scars

Too deep for needling alone.

Alopecia Areata

Not a standard treatment.

diffuse reduced hair density across the scalp with the frontal hairline retained on light skin.

Telogen Effluvium

Shedding usually recovers on its own.

Can make it worse

Acne

Can spread active breakouts.

—

Treatment areas

Face; the selected area depends on the concern and treatment plan.

Thinning areas of the scalp, including the hairline and crown.

Skin tones

Skin tone

● Microneedling

● PRP for Hair Loss

Lighter skin

Low risk

Redness like a mild sunburn.

Low risk

Not a pigment-based treatment.

Medium skin

Low risk

One of the safer scar treatments.

Low risk

Not a pigment-based treatment.

Deeper skin

Low risk

Lower pigment risk than lasers; dark marks are still possible.

Low risk

Not a pigment-based treatment.

How it works

Microneedling

PRP for Hair Loss

How it works

Microneedling mechanism diagram. Fine needles create tiny punctures: A device makes controlled channels in selected skin. Healing signals are released: The tissue response activates repair processes. Collagen remodels gradually: Healing may improve selected scars and skin texture.

PRP for Hair Loss mechanism diagram. Platelets are concentrated: A blood sample is processed to prepare platelet-rich plasma. PRP is injected into selected scalp: Platelets release signals involved in tissue responses. Some follicles may respond: Hair measures may improve in selected patients; response varies.

Diagram explanation

Fine needles create tiny punctures: A device makes controlled channels in selected skin. Healing signals are released: The tissue response activates repair processes. Collagen remodels gradually: Healing may improve selected scars and skin texture.

Schematic illustration. Technique and response vary. This explains a mechanism and does not specify treatment settings.

Platelets are concentrated: A blood sample is processed to prepare platelet-rich plasma. PRP is injected into selected scalp: Platelets release signals involved in tissue responses. Some follicles may respond: Hair measures may improve in selected patients; response varies.

Schematic illustration. Technique and response vary. This explains a mechanism and does not specify treatment settings.

Before your treatment

Microneedling

PRP for Hair Loss

2–4 weeks before

Pigment cream: On deeper skin tones, some providers start a pigment-blocking cream a few weeks ahead.

Not specified

The week before

Actives and hair removal: Do not arrive tanned or sunburned.

Actives and hair removal: Stop retinoids (tretinoin, adapalene, retinol), benzoyl peroxide and acids 3 to 5 days before.

Actives and hair removal: No waxing, threading or hair removal creams.

A few days before: Painkillers: Many providers ask you to pause anti-inflammatory painkillers such as ibuprofen for several days, since they may blunt the signal PRP depends on.

The day before: Alcohol: Skip alcohol.

Day of treatment

Microneedling

PRP for Hair Loss

Before you arrive

Clean skin: Come with a clean face and no makeup, and plan not to wear any that day.

Clean skin: If you have active pustules or an infection in the area, move the session.

Hair, water and gym: Clean, dry hair, no styling product, dry shampoo or fiber powder.

Arrival & prep

Skin is checked and photographed, and you confirm what you have stopped using.

The scalp is examined, photos taken in a fixed position, and thinning areas marked.

Treatment

The pen is passed over the skin in overlapping passes, one area at a time, with sterile gel or saline as a glide.

It sounds like a small vibrating motor and takes 20 to 30 minutes for a full face. Pinpoint bleeding is normal at deeper settings over scars. With good numbing it is uncomfortable rather than painful, a scratchy dragging with pressure.

The plasma layer is injected in a grid across the thinning area, just under the skin, over about 10 to 15 minutes.

Some also run a microneedling pen over the area and press plasma in. The injections sting and pinch, worst along the hairline and crown. Most people call it uncomfortable rather than unbearable, and it is fair to ask for more numbing.

Before you leave

Skin is bright red, warm and tight, like a strong sunburn, sometimes with faint tracking lines and dots of dried blood.

The scalp is tender, slightly puffy, maybe with pinpoint spots of blood.

After your treatment

Microneedling

PRP for Hair Loss

First 24 hours

Days 1 to 5: Redness turns pink and swelling settles, most noticeably around the eyes the first morning.

Days 1 to 3: Puffiness can move down to the forehead and eyelids over the first two or three days.

Days 2–7

Not specified

Days 3 to 7: Tenderness fades, tiny scabs come away with washing, and the scalp feels like itself again.

Weeks 2–4

Weeks 1 to 4: Skin looks normal and nothing appears to be happening.

Weeks 2 to 8: Some people shed a little more than usual for a few weeks after the first session.

Beyond 1 month

Months 2 to 6: Texture keeps improving after the visible healing finishes, which is why the photograph that matters is taken months later, not the week after.

Not specified

Time to results

1–3 months after each session

3–6 months

How long results last

Years for scars

Fades without maintenance

Risks

Dark patches
Tracking lines
Prolonged redness
Bumps that will not go
A cold sore outbreak

Swelling that gets worse after day three
Numbness or tingling that lasts
Shedding that carries on past two months
No change at all after a full course

Cost

Per session

In the US a full-face session usually runs about $200 to $700, with medical offices at the higher end and packages of three to six cheaper per session.

In the US, a single PRP session commonly runs $500 to $1,500, and clinics almost always sell packages of three or four at a lower price per session.

Insurance

Insurance does not cover microneedling for acne scars, since it is classed as cosmetic.

Insurance almost never covers PRP for hair loss — it is classified as cosmetic and, for this use, is not an approved indication.

Questions

Microneedling

PRP for Hair Loss

Individual Questions

Does microneedling get rid of acne scars?

No. It makes indented scars shallower and less noticeable over three to six sessions. Rolling and shallow boxcar scars respond best, icepick scars respond poorly, and improvement is partial in every study. That is worth having; complete clearance is not what this treatment does.

How many sessions will I need?

Three to six for scarring, four to six weeks apart, then a wait. Texture keeps improving for three to six months after the last session, so do not judge the outcome before then.

Does it hurt?

With numbing cream on for 30 to 45 minutes it is uncomfortable rather than painful, a scratchy pressure rather than a sharp pain. The forehead, nose and jawline are the worst part, and deeper settings over scars are sharper.

Is microneedling safe on deeper skin tones?

One of the better options, because there is no heat or light for melanin to absorb. Dark marks are still possible if the settings are aggressive or the skin sees sun afterward, and they fade over months. Choose someone who treats deeper skin tones routinely.

Can I do this at home with a dermaroller?

Anything at 0.5 mm or deeper is a medical depth and should not be used at home. Needles blunt, home rollers cannot be properly sterilized, and serums through fresh channels have caused lasting lumps of inflammation. Rollers at 0.2 to 0.3 mm are mostly harmless and mostly useless.

Is PRP worth adding?

Platelet-rich plasma is your own blood, spun down and applied or injected during the session. The evidence that it improves scar results is mixed, and it often doubles the price. A course without it is a reasonable course.

Does PRP actually work for hair loss?

For some people, yes, and the change is usually modest rather than dramatic. Most trials show more and thicker hairs compared with a placebo injection, but they are small, short, and use different preparations. Think of it as something that may improve a result you are already getting from medical treatment, not a treatment that stands on its own.

How long before I see anything?

Less shedding at two to three months, and a change in thickness at four to six months if it is going to happen. Photographs taken at the start are the only reliable way to judge it — gradual change in your own mirror is nearly impossible to see.

How often do I have to keep going?

Three or four sessions a month apart, then maintenance every three to six months. An ongoing commitment, not a course you finish.

Is it covered by insurance?

Almost never. It is treated as cosmetic for hair loss, and the preparation devices are cleared for making platelet-rich plasma rather than for treating hair, so this is off-label everywhere.

Does it work if the area is completely bald?

No. PRP thickens follicles that are still there and shrinking. Where the scalp has been smooth for years there is nothing left to work on, and a transplant is the only way to put hair there.

Does it hurt?

The injections sting, and the scalp is a sensitive place. Numbing cream, ice or a vibration device makes it manageable, and the injecting is over in about ten to fifteen minutes. Afterward the scalp feels bruised for a day.

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