{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,22]],"date-time":"2026-07-22T05:01:01Z","timestamp":1784696461575,"version":"3.55.0"},"reference-count":18,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2026,4,11]],"date-time":"2026-04-11T00:00:00Z","timestamp":1775865600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,4,11]],"date-time":"2026-04-11T00:00:00Z","timestamp":1775865600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Lasers Surg Med"],"published-print":{"date-parts":[[2026,7]]},"abstract":"ABSTRACT<\/jats:title>\n \n Objective<\/jats:title>\n This study aimed to evaluate the safety and efficacy of a novel dual\u2010wave radiofrequency microneedling (RFMN) device in treating acne scars and postinflammatory hyperpigmentation (PIH) in patients with Fitzpatrick skin types IV\u2010VI.<\/jats:p>\n <\/jats:sec>\n \n Methods<\/jats:title>\n In this unblinded, single\u2010group, prospective pilot study, seven participants over the age of 18 (4 females and 3 males) with mild to severe acne scars and Fitzpatrick skin types IV\u2010VI underwent three RFMN treatments at 1\u2010month intervals\u2013with final follow up 3 months after the third treatment. Outcomes were assessed using the SCAR\u2010S scale for acne scarring and the Investigator Global Assessment (IGA) scale for hyperpigmentation and erythema. Statistical analysis involved Friedman and Wilcoxon signed\u2010rank tests.<\/jats:p>\n <\/jats:sec>\n \n Results<\/jats:title>\n \n Six participants completed the study, showing significant improvements in acne scarring and PIH by the second and third treatment sessions. SCAR\u2010S and IGA scores indicated statistically significant reductions (\n p<\/jats:italic>\n \u2010values\u2009<\u20090.05). No adverse effects, such as prolonged erythema or new hyperpigmentation, were reported.\n <\/jats:p>\n <\/jats:sec>\n \n Limitations<\/jats:title>\n The study's limitations include a small sample size, lack of a control group, and unblinded assessments.<\/jats:p>\n <\/jats:sec>\n \n Conclusion<\/jats:title>\n The dual\u2010wave RFMN device proved effective in improving acne scars and reducing PIH in darker skin types with minimal risk of adverse effects. Future research should include larger sample sizes, blinded evaluations, and comparisons with other treatments to further validate these findings. Ultimately, the study's results support the broadening of safe and effective treatment options for acne scarring and hyperpigmentation in Fitzpatrick types IV\u2010VI.<\/jats:p>\n <\/jats:sec>","DOI":"10.1002\/lsm.70131","type":"journal-article","created":{"date-parts":[[2026,4,11]],"date-time":"2026-04-11T12:29:02Z","timestamp":1775910542000},"page":"412-417","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["An Open Pilot Study of Dual Wave Radiofrequency Microneedling for Acne Scarring in Patients With Skin of Color"],"prefix":"10.1002","volume":"58","author":[{"ORCID":"https:\/\/orcid.org\/0009-0003-7705-9190","authenticated-orcid":false,"given":"Ugonna","family":"Nwannunu","sequence":"first","affiliation":[{"name":"Howard University Washington District of Columbia USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shanae'","family":"Henry","sequence":"additional","affiliation":[{"name":"Howard University Washington District of Columbia USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jewell","family":"Dinkins","sequence":"additional","affiliation":[{"name":"Meharry Medical College Nashville Tennessee USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tomilowo","family":"Abijo","sequence":"additional","affiliation":[{"name":"Fayetteville State University Fayetteville North Carolina USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"C.","family":"Frey","sequence":"additional","affiliation":[{"name":"Howard University Washington District of Columbia USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,4,11]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1111\/srt.13386"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1007\/s40257-021-00633-4"},{"key":"e_1_2_7_4_1","volume-title":"Biochemistry, Melanin","author":"Schlessinger D. 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