Mechanical skin needling creating microchannels. Studied for collagen induction, acne scars, and skin rejuvenation.
◆Moderate evidence
The Idea
Microneedling is an in-clinic procedure that uses mechanical skin needling to create microchannels in the skin, inducing collagen production and promoting skin rejuvenation. This device is studied for its potential to improve the appearance of acne scars and fine lines. The proposed mechanism of action involves the stimulation of collagen synthesis and tissue repair.
What the Evidence Shows
Research suggests that microneedling can improve skin texture and reduce the appearance of fine lines and acne scars. Studies indicate that collagen production is increased following microneedling treatments, with some studies showing significant improvements in skin elasticity and firmness. However, evidence is limited by the small sample sizes and variability in treatment protocols used across studies. More high-quality, randomized controlled trials are needed to fully understand the efficacy of microneedling for skin rejuvenation.
Verdict
The current state of clinical use suggests that microneedling is a promising treatment option for skin rejuvenation, but its effectiveness can vary depending on individual factors and treatment protocols. While some studies indicate positive outcomes, more research is needed to fully establish the benefits and limitations of this procedure.
Understanding evidence levels▼
In VitroCell or tissue culture experiments — no human or animal data.
Ex VivoSkin model or tissue experiments — not in living humans.
Animal StudyResults in animals only — may or may not translate to humans.
Small Human StudySmall or uncontrolled human study — preliminary results.
Controlled TrialControlled human study (often randomized) — stronger evidence.
Systematic ReviewSummary and analysis of existing published studies.
Meta-AnalysisStatistical pooling of results from multiple studies.
GuidelineProfessional guidance or consensus statement from a dermatology society.
Small Human StudySmall or uncontrolled human study. Results are preliminary.Salicylic AcidHyperpigmentationPublished: April 1, 2026
Tranexamic Acid Serum May Help Improve Hyperpigmentation
A small study looked at using a topical tranexamic acid serum in patients with hyperpigmentation. The serum contains three active ingredients that aim to fight triggers of hyperpigmentation. Researchers found that applying the serum after certain in-office procedures may help improve skin appearance.
Why it matters: This study may help dermatologists and patients develop effective skincare plans for hyperpigmentation.
This study is a case series, meaning it's based on real-world experiences from eight expert dermatologists, but it's not a controlled trial. The sample size is small, and more research is needed to confirm these findings.
◆ Notable findingA finding from a controlled trial, systematic review, or meta-analysis with noteworthy results.Systematic ReviewSummary and analysis of existing published studies.AcnePublished: April 1, 2026
Microneedling and Laser Treatments May Help Improve Acne Scars
Researchers studied two treatments for acne scars: microneedling radiofrequency and fractional carbon dioxide laser. They found that both treatments may help improve the appearance of acne scars, but results vary depending on individual factors and treatment parameters. More research is needed to understand the best ways to use these treatments.
Why it matters: Understanding how to effectively treat acne scars can help people feel more confident in their skin.
This review is based on existing research, but the combined use of these modalities is currently under investigation, and more studies are needed to refine treatment protocols and explore synergistic effects.
◆ Notable findingA finding from a controlled trial, systematic review, or meta-analysis with noteworthy results.Systematic ReviewSummary and analysis of existing published studies.AcnePublished: April 1, 2026
Exosome-Based Therapies May Help Skin Rejuvenation and Inflammatory Dermatoses
Researchers studied exosome-based therapies for skin rejuvenation, psoriasis, acne scars, and atopic dermatitis. They found that these therapies may improve wrinkles, pigmentation, elasticity, hydration, or scars in some people. However, the evidence is limited and more research is needed.
Why it matters: This study may help us understand new ways to improve skin appearance and treat certain skin conditions.
Small sample sizes, short follow-up, non-randomized, single-arm designs, and potential conflicts of interest limit the interpretation of the results.
Small Human StudySmall or uncontrolled human study. Results are preliminary.AcnePublished: March 30, 2026
Laser and Microneedling May Help Improve Atrophic Acne Scars
A small study looked at the effectiveness of two treatments, a 1064nm Q-switched Nd:YAG laser and microneedling, in reducing the appearance of atrophic acne scars. Researchers found that both treatments may help improve the appearance of scars and quality of life for some people. However, more research is needed to confirm these findings.
Why it matters: Understanding how to effectively treat atrophic acne scars can help individuals with this condition feel more confident and improve their overall well-being.
This study had a small sample size of 30 patients and was retrospective, meaning it looked back at existing data rather than following patients over time. The study also had a short duration of follow-up, with assessments made at 1 and 4 months post-treatment.
Small Human StudySmall or uncontrolled human study. Results are preliminary.AcnePublished: March 18, 2026
Radiofrequency Microneedling Device Complications Studied in US FDA Data
Researchers analyzed US FDA data on complications from radiofrequency microneedling devices. They found that while generally safe, significant complications may occur, including textural changes, pigmentary alteration, and fat loss. The study suggests that experience and proper training are crucial to minimizing risks.
Why it matters: This study may help skincare professionals and patients understand the potential risks associated with radiofrequency microneedling devices.
This study is based on a retrospective review of FDA MAUDE reports from January 2013 to October 2025, which may not be representative of all users or outcomes.
◆ Notable findingA finding from a controlled trial, systematic review, or meta-analysis with noteworthy results.Systematic ReviewSummary and analysis of existing published studies.HyperpigmentationPublished: March 1, 2026
Noninvasive Cosmetic Treatments for Darker Skin Tones: Safety and Efficacy Guidelines
Researchers reviewed studies on noninvasive cosmetic procedures for people with darker skin tones. They found that microneedling and radiofrequency microneedling are generally safe, while chemical peels and laser treatments require caution. Patients with darker skin are at a higher risk for skin discoloration after these procedures.
Why it matters: Understanding the safety and efficacy of noninvasive cosmetic treatments is crucial for people with darker skin tones to make informed decisions about their skincare.
The review focused on Fitzpatrick skin types IV-VI, and the findings may not be generalizable to other skin types. The review did not include a comprehensive analysis of all potential risks and benefits.
Animal StudyResults in animals only. May or may not translate to humans.Skin Barrier DamagePublished: February 18, 2026
Chitosan may help with skin healing after aesthetic treatments
Researchers studied a type of chitosan called Ideal Size Chitosan (ISC) made by Arche. They found that it has antimicrobial properties and can help with wound healing. This could be useful in reducing the risk of infection and promoting healing after procedures like laser resurfacing or microneedling.
Why it matters: This research may help improve post-procedure care for people undergoing aesthetic treatments.
This study was conducted in lab experiments and animal models, and more human studies are needed to confirm its effectiveness.
Small Human StudySmall or uncontrolled human study. Results are preliminary.Published: February 5, 2026
Scalp Microinfusion with Dutasteride May Help Male Hair Loss
Researchers studied a new way to deliver a medication called dutasteride to the scalp using tiny needles. This method, called MMP, was tested in 30 men with hair loss due to genetics. After 12 months, most men showed some improvement in their hair loss, with some experiencing significant improvement.
Why it matters: This study may help us understand new ways to treat male hair loss, but more research is needed to confirm its effectiveness.
This was a small case series with a limited number of participants, and more controlled studies are needed to confirm the findings.
◆ Notable findingA finding from a controlled trial, systematic review, or meta-analysis with noteworthy results.Controlled TrialControlled human study, often randomized. Stronger evidence.WrinklesPublished: January 1, 2026
New Study Compares Two Treatments for Facial Rejuvenation
Researchers studied two treatments to help skin recover after a laser and microneedling procedure. They compared autologous nanofat to a growth factor called rhPDGF-BB. Both treatments improved skin appearance and supported normal wound healing, but one showed a milder early inflammatory response.
Why it matters: This study may help skincare professionals understand how to improve facial rejuvenation outcomes and reduce recovery time.
This study had a small sample size of five patients and was a split-face, randomized controlled trial.
◆ Notable findingA finding from a controlled trial, systematic review, or meta-analysis with noteworthy results.Systematic ReviewSummary and analysis of existing published studies.Lactic AcidWrinklesPublished: June 19, 2025
Radiofrequency Microneedling May Help Improve Facial Appearance
Researchers studied the use of radiofrequency microneedling (RFM) for facial rejuvenation, focusing on its effectiveness across different facial areas and its combination with various treatments. They found that RFM may promote collagen synthesis and skin repair when used with certain agents. However, more research is needed to fully understand its benefits and potential risks.
Why it matters: Understanding RFM's potential benefits and limitations may help individuals make informed decisions about their skincare treatments.
This review is based on existing studies, and more research is needed to confirm the effectiveness and safety of RFM for facial rejuvenation.
◆ Notable findingA finding from a controlled trial, systematic review, or meta-analysis with noteworthy results.Controlled TrialControlled human study, often randomized. Stronger evidence.Published: June 1, 2025
Intradermal and Microneedling-Assisted Botulinum Toxin Injections for Enlarged Facial Pores
Researchers studied two methods of treating enlarged facial pores using Botulinum toxin type A injections. They found that both methods may help reduce pore size, but there was no significant difference in their effectiveness. A small study suggests that patients may be satisfied with either treatment.
Why it matters: This study may help dermatologists choose the best treatment option for patients with enlarged facial pores.
This study had a small sample size of 30 patients and only lasted for 1 month. Patient satisfaction was measured using a subjective scale, which may not be a reliable indicator of treatment effectiveness.
Small Human StudySmall or uncontrolled human study. Results are preliminary.WrinklesPublished: June 1, 2025
Combining Microneedling and Exosome Therapy May Help Reduce Facial Pores
A small study looked at whether combining microneedling with exosome therapy could improve facial pores and skin texture. Researchers found that three patients who received this treatment showed visible improvements in their skin. However, more research is needed to confirm these results.
Why it matters: Understanding how to reduce facial pores and improve skin texture could be important for people looking for non-surgical cosmetic treatments.
This study had a small sample size of only three patients, and more research is needed to confirm these results. The study was conducted at a private aesthetic clinic, which may not be representative of other settings.