You'll leave your first microneedling appointment pink, faintly tender, and a little alarmed at your own face. Give it three days. Somewhere around day three or four, your skin is going to look genuinely good. Smoother. Brighter. The kind of good where somebody asks whether you've been away.
That glow is real. It's also mostly water.
The thing you actually paid for is happening somewhere else, on a much slower clock, and it won't surface for about two months. Which is why the answer to "how many sessions" is three to six rather than one, and why that first appointment can feel a little like a bait and switch if nobody explains the two clocks to you up front.
The Quick Answer
Microneedling, also called collagen induction therapy, is typically planned as a series of three to six sessions spaced four to six weeks apart. A 2018 review in Dermatologic Surgery describes three to six treatments as the standard protocol and notes a lag of at least six to eight weeks from the start of treatment before new collagen production shows up as visible change.1 Atrophic acne scars and deeper texture generally sit at the top of that range, and sometimes past it. Overall tone and brightness often look better sooner. At Defiant in Lisle, IL, microneedling runs $350 a session, with package pricing available on the exosome and PDGF series.
Microneedling at a Glance
| Also called | Collagen induction therapy, percutaneous collagen induction |
| Typical series | 3 to 6 sessions |
| Spacing | 4 to 6 weeks at Defiant; 2 weeks in some published protocols |
| Time to visible collagen change | At least 6 to 8 weeks from the first session1 |
| Session length | 30 to 60 minutes including numbing cream |
| Downtime | Pink for 1 to 3 days, sometimes light flaking on day 3 or 4 |
| Most common side effect | Transient redness, 6.8% across 723 pooled patients4 |
| Studied for | Atrophic acne scars, skin texture, fine lines, enlarged pores, stretch marks |
| Price at Defiant | From $350 per session |
| Location | 5100 Lincoln Ave, Lisle, IL 60532 |
What's Actually Happening Under the Needle
A microneedling pen is a cluster of very fine needles moving very fast, punching thousands of microscopic channels into your skin. Each channel is a small, deliberate wound. Your body, which has no idea any of this was elective, responds the way it responds to every other wound it has ever dealt with.
That response runs in three phases, and they don't run at the same speed.
The first is inflammation, and it starts within minutes. Blood flow increases, the tissue swells slightly, immune cells show up to survey the damage. This is the phase you can see in the mirror. The pink, the warmth, the slightly plumped look that arrives a few days later once the swelling has organized itself into something flattering. Your skin holds more water than usual and reflects light differently. That is the glow, and it is a genuine physiological event. It is also temporary, and it has almost nothing to do with the reason you booked.
The second phase is proliferation, where your skin starts manufacturing new tissue. Days to weeks.
The third phase is remodeling, and this is the one that matters. Your body takes the hasty scaffolding it threw up during proliferation and slowly rebuilds it into organized, load-bearing collagen. That process runs for months. There is no way to hurry it, no product that shortcuts it, and no amount of wanting it to go faster that makes a difference.
The research bears out how slow it is. In one histology study, ten patients with atrophic acne scars went through six sessions at two-week intervals over three months. Biopsies taken at the end showed statistically significant increases in collagen types I, III, and VII along with newly synthesized collagen.2 In a larger retrospective series of 480 patients treated for scars, wrinkles, and laxity, biopsies from 20 of them showed a considerable increase in collagen and elastin deposition at six months after treatment, with the epidermis showing roughly 40% thickening of the stratum spinosum at one year.3
Six months. One year. Those are the clocks the tissue is running on while you're standing in your bathroom on day four, deciding whether this was worth $350.
The Evidence Is Messier Than the Before-and-Afters
Microneedling has been studied a lot, and a fair amount of it has been studied badly. The trials are mostly small, the outcome measures change from paper to paper, and almost none of them were built to answer the question you're actually asking, which is how many times you have to do this.
The best recent synthesis is a 2025 systematic review in Aesthetic Plastic Surgery that pooled 21 studies and 723 patients treated for facial rejuvenation. Ninety percent of those trials used multiple sessions rather than one, though the schedules varied study to study. Pooled patient satisfaction came out at 83% (95% CI 0.76 to 0.88). Reported side effects were mild and uncommon: transient redness in 6.8%, scaling in 1.7%, a burning sensation in 1.5%, itching in 0.4%.4 The authors are candid about the field's weak spot, which is that nobody measures results the same way twice, and they rate the overall level of evidence as IV.
Level IV is not nothing. It is also not a randomized trial, and anyone presenting microneedling as a settled science is getting ahead of the literature.
For acne scars there's a more useful comparison. A May 2026 meta-analysis in Cureus put microneedling head to head against chemical peels across 11 studies and 713 participants, and the result depends entirely on which bar you set.5
Microneedling vs Chemical Peels for Atrophic Acne Scars
| Endpoint | Result | Statistic |
|---|---|---|
| Clinically significant improvement (50% or better) | No significant difference | RR 0.97; 95% CI 0.82 to 1.15; p = 0.74 |
| Any measurable improvement (1 grade or better) | Favors microneedling | RR 1.79; 95% CI 1.37 to 2.34; p < 0.0001 |
| Continuous scar-severity scores | No significant difference, trend favoring peels | SMD -0.27; 95% CI -0.91 to 0.38; p = 0.41 |
Source: Ilesanmi 2026, 11 studies, 713 participants.5
Put those three rows next to each other and you get a fairly precise picture. Microneedling reliably moves scarring in the right direction, more reliably than peels do. Dramatic transformation is rare either way. Anybody promising you the second thing is selling you the first thing at a markup.
How Many Sessions by Goal
| Goal | Typical series | What tends to show up first |
|---|---|---|
| Overall tone, glow, dullness | 3 sessions | Brightness and smoother surface within a week or two of the first visit |
| Rough texture, enlarged pores | 3 to 4 sessions | Gradual refinement, usually noticeable by the second or third session |
| Fine lines | 4 to 6 sessions | Softening builds slowly and keeps improving after the series ends |
| Atrophic acne scars | 5 to 6 sessions, sometimes more | Little visible change early, then a clearer difference over months two through six |
| Stretch marks (body) | 4 to 6 sessions | Varies widely; older, white striae respond less than newer ones |
| Scalp and thinning hair | Planned at consultation | Assessed separately, since the protocol and interval differ |
Treat those as planning ranges rather than promises. Skin varies, scar depth varies enormously, and your provider will likely adjust the plan once they've seen how you responded to the first two.
Why the Spacing Is Its Own Question
Published protocols disagree about the interval, and they disagree by a lot. The Dermatologic Surgery review describes biweekly treatments as the convention.1 The acne scar study used two-week gaps.2 Plenty of clinics, Defiant among them, run four to six weeks instead.
Nobody has tested these against each other. There is no trial comparing a two-week schedule to a six-week schedule and measuring which one leaves you with better skin a year later. So if a provider tells you with total confidence that one interval is correct, they're telling you their preference and calling it evidence.
The case for the longer gap is about the remodeling phase. It keeps going well past two weeks, so a four to six week window lets your skin finish the work from the last session before you ask it to start over. It also means you're evaluating each session against settled skin instead of against skin that's still flushed from the one before, which matters more than people expect when they're trying to decide whether this is working.
Whether a tighter schedule costs you anything in the end is genuinely unknown. What it definitely does is compress more downtime into less calendar.
What Pushes You Toward the High End
Scar depth. Shallow rolling scars respond faster than deep boxcar or ice-pick scarring. Ice-pick scars in particular often need a combined approach rather than needling alone, and that is something a provider should tell you at the consultation, not after session four when you're wondering why nothing has changed. If the acne itself is still active, that gets treated first, which is what Acne Bootcamp is built for.
Age and baseline collagen. Younger skin rebuilds faster. That doesn't mean microneedling stops working later, and the average patient in that 2025 systematic review was 48.4 It means the timeline stretches.
Sun and skincare between sessions. Daily SPF and a consistent routine are standard aftercare, and they may support a better result across the series. Unprotected sun in the weeks after a session also raises the risk of post-inflammatory hyperpigmentation, which is a bigger consideration in deeper skin tones.
Whether you add a booster. At Defiant, microneedling can be paired with De|RIVE exosomes or PDGF, growth-factor products worked into the fresh channels right after needling to support the healing window. Exosome products aren't FDA-approved for skin treatment and the evidence is still early, so treat either booster as an optional add-on rather than the reason you're here. They may help your skin respond more fully, and your provider will help you decide whether either one is worth it for your skin. Neither replaces the series.
Smoking, sleep, and protein. Collagen synthesis is a construction project. Undersupply the raw materials and the job runs slow.
What a Series Costs at Defiant
| Option | What it includes | Price |
|---|---|---|
| Microneedling | Single session, no add-on | $350 |
| Microneedling + De|RIVE | With the exosome booster | $450 |
| Microneedling + PDGF | With the platelet-derived growth factor booster | $650 |
| Exosomes Package | Four microneedling + exosome sessions | $1,500 |
| PDGF Package | Three microneedling + PDGF sessions | $1,755 |
| Hair restoration | Scalp treatment | Priced at consultation |
A session runs thirty to sixty minutes including the numbing cream, which does most of the work of making this tolerable. Expect to be pink for one to three days, back to normal the next morning, and possibly flaking a little around day three or four. Members save on every visit, which adds up faster on a five-session plan than on a one-off.
After the Series
Collagen you build through microneedling isn't permanent, because your skin keeps aging on exactly the schedule it was already on. Most people move to a maintenance session every three to six months once the initial series is done, which may support holding the result without starting from scratch.
If you came in for scar correction rather than general skin quality, mark your calendar for six months after your last session. That's roughly where the histology data shows deposition has caught up.3 Judge it then. Judging it in week two tells you about water.
- Most skin goals take three to six microneedling sessions, and published protocols describe three to six treatments as the standard.1
- Expect a lag of at least six to eight weeks from the first session before new collagen shows up as visible change.1
- The glow you see three or four days after a session is inflammation and water retention, not collagen. The collagen runs on a months-long clock.
- Acne scars and deep texture sit at the top of the range and sometimes need more than six sessions. Tone and brightness often improve sooner.
- Across 21 studies and 723 patients, pooled satisfaction was 83%, with transient redness the most common side effect at 6.8%.4
- Session spacing is unsettled in the literature, ranging from two to six weeks, with no head-to-head trial. Defiant spaces sessions four to six weeks apart.
- On atrophic acne scars, a 2026 meta-analysis found microneedling more likely than chemical peels to produce any measurable improvement (RR 1.79), with no significant difference at the 50%-or-better threshold.5
- Microneedling at Defiant in Lisle, IL starts at $350 a session, with package pricing on the four-session exosome series ($1,500) and the three-session PDGF series ($1,755).
Frequently Asked Questions
Smoother, Stronger Skin.
Microneedling in Lisle, IL starts at $350, with exosome and PDGF boosters available. Book a consultation and a provider will map a series to your skin, serving Naperville, Downers Grove, Wheaton, and Chicago's western suburbs.
Keep Reading
Last updated September 14, 2026.
References
- Alster TS, Graham PM. Microneedling: A Review and Practical Guide. Dermatol Surg. 2018;44(3):397-404. PubMed
- El-Domyati M, Barakat M, Awad S, Medhat W, El-Fakahany H, Farag H. Microneedling Therapy for Atrophic Acne Scars: An Objective Evaluation. J Clin Aesthet Dermatol. 2015;8(7):36-42. PMC
- Aust MC, Fernandes D, Kolokythas P, Kaplan HM, Vogt PM. Percutaneous Collagen Induction Therapy: An Alternative Treatment for Scars, Wrinkles, and Skin Laxity. Plast Reconstr Surg. 2008;121(4):1421-1429. PubMed
- Foppiani JA, Fanning JE, Beltran K, et al. Microneedling for Facial Rejuvenation: A Systematic Review. Aesthetic Plast Surg. 2025;49(17):4949-4960. PubMed
- Ilesanmi ON. Microneedling Versus Chemical Peels for Atrophic Acne Scars: A Systematic Review and Meta-Analysis. Cureus. 2026;18(5):e108622. PubMed