Microneedling Before and After: Results After 1, 3 and 6 Sessions

The honest answer is that no study we found isolates what a single microneedling session delivers — the published treatment plans are series, not single visits.

What the evidence does describe well is the first window, the days right after a treatment, and in that window an "after" photo shows healing rather than results.

In SkinPen's FDA study, the common treatment responses were temporary: redness, itching, peeling, discomfort or tenderness in 31% of subjects, lasting 1 to 3 days; dryness in 12%, lasting 1 to 6 days; and burning in 9%.

No serious adverse events were recorded in the study, and none of these responses persisted at the 6-month check.

The result builds on a slower clock — microneedling works by stimulating collagen, which is why the AAD calls it collagen induction therapy.

One session is best read as the first step of a plan, not a before-and-after of its own.

Three sessions is where the best evidence sits, because that is what SkinPen's pivotal study delivered.

In it, 41 adults with moderate-to-severe atrophic acne scars were treated three times, about a month apart; 20 received the final SkinPen device.

At 6 months after the last treatment, blinded assessors saw improvement in 55% of the SkinPen group (11 of 20) on photo grading, 45% showed no change, and none were graded worse.

The mean score improved from 2.8 at baseline to 2.35.

The American Academy of Dermatology describes the same plan length from the other direction: for acne scars, a dermatologist may recommend 3 to 5 treatments performed every 2 to 4 weeks, and studies have found this can fade acne scars by 50% to 70%.

Both figures describe groups in studies — neither is a prediction for your skin.

So what would a sixth session add?

We found no study that measures it.

The published plans we found describe three treatments in the SkinPen trial and 3 to 5 for acne scars in the AAD's guidance, and the AAD notes that some people need a series of treatments to see optimal results.

If a med spa's plan runs to six visits, the questions to ask are what the extra sessions target and how the price changes with them.

Where a concern sits determines how much evidence stands behind its before-and-afters.

The FDA has authorized microneedling devices to improve the appearance of facial acne scars, facial wrinkles and abdominal scars in patients aged 22 or older — and the accurate verb is authorized or cleared, not approved.

The AAD's list of uses is longer: acne scars, dark spots, large pores, melasma, sagging skin, scars from surgery or injury, stretch marks, uneven texture and tone, and wrinkles and fine lines.

The items on that list beyond the FDA's three — dark spots, large pores, melasma, sagging skin, stretch marks and uneven texture and tone — are clinical practice, not FDA-authorized indications; for scars, the FDA's authorization is limited to abdominal scars.

Acne scars are the concern the studies on this page measure directly — SkinPen's trial enrolled them, and the AAD keeps separate acne-scar guidance — but that guidance carries a caveat: effective treatment depends on the scar type, because ice pick scars need different treatment than rolling scars.

A before-and-after for one scar type does not transfer to another.

Wrinkles sit on solid ground: facial wrinkles are on the FDA's authorized list, the AAD lists fine lines among its uses, and a 2018 review in Dermatologic Surgery concluded that microneedling is a safe, minimally invasive and effective treatment for scars, wrinkles and stretch marks.

What we did not find is any study counting sessions for wrinkles specifically.

Pores and stretch marks are the reverse: both appear on the AAD's clinical list, and neither is on the FDA's authorized list, so treating them is an off-label use of these devices.

The same is true of the under-eye area, which the authorized list does not cover, and of the neck, which does not appear on it — the FDA notes that other body areas may not have been reviewed for a given device.

Skin tone changes what an "after" can show.

The AAD calls microneedling minimally invasive and safe for all skin tones; the FDA, for its part, flags darker skin types because of the risk of the skin darkening or lightening after treatment, and notes that some FDA-authorized devices were not studied in darker skin types.

Two variants sit outside this page: radiofrequency microneedling, which adds heat through the needles, and PRP microneedling — the "vampire facial" — which combines needling with platelet-rich plasma.

Their before-and-after questions get full treatments of their own in our RF microneedling guide and PRP microneedling guide.

The AAD's timeline: microneedling results appear gradually as collagen forms, with some improvement possible within a few weeks and full results usually taking several months.

Cleveland Clinic is more specific: most people need multiple treatments about 3 to 8 weeks apart, and it can take 3 to 6 months to see results.

Two consequences follow for photos.

One taken in the first week sits at the very start of that curve, so it understates where a full plan ends up.

And there is no permanent endpoint to compare against: the AAD says results fade as the body loses collagen, that sun protection and not smoking help preserve them, and that a dermatologist may recommend a yearly maintenance session — Cleveland Clinic likewise notes a yearly treatment may be needed.

The nearest rule for clinic galleries comes from the FTC's Endorsement Guides (16 CFR 255.2), which address advertising that features a consumer's experience — our application of that frame to a before-and-after gallery.

An advertisement featuring a consumer's experience is likely to be read as showing what consumers will generally achieve, so an advertiser who cannot substantiate that should clearly disclose the generally expected results.

The FTC also says a disclaimer such as "results not typical" does not adequately correct the impression that the featured results are representative.

The controlled data show why that matters.

In SkinPen's trial, 45% of the treated group showed no change at 6 months — the kind of group outcome a single photograph cannot carry.

One dramatic image is one person's result; a study percentage describes the entire group measured.

That is also why this page describes studies instead of publishing a gallery.

When you compare med spas, ask for photos of patients treated for your specific concern, and ask what results consumers generally achieve — under the FTC's guides, an advertiser who cannot substantiate that a featured experience is representative should clearly disclose the generally expected results.

Then ask the treatment questions: whether the device is one the FDA has authorized for that use, who performs the treatment, and what license and training that person holds.

The AAD recommends a board-certified dermatologist and warns that treatment by someone lacking medical training carries an increased risk of infection, scarring or long-lasting skin discoloration.

Get the plan in writing — how many sessions, how far apart, and what each visit costs — so you can compare whole plans rather than single prices.

For the treatment itself (what it is, what it costs, and who may perform it where you live), start with our microneedling guide.