Abstract
Radiofrequency microneedling (RFMN) is a minimally invasive modality that creates perforations in the skin and delivers radiofrequency-generated thermal energy into the underlying tissue via microneedle electrodes. The perforations created by microneedles improve transcutaneous absorption of topical products and transcutaneous elimination of skin debris. The mechanical and thermal effects of RFMN cause dermal coagulation, collagen remodeling and neoelastogenesis via a wound-healing response. Dermatologic conditions with numerous high-quality evidence supporting its use include skin rejuvenation, acne scars, acne vulgaris and axillary hyperhidrosis. Other potential dermatologic indications of RFMN include striae, rosacea, androgenetic alopecia, cellulite, and melasma. RFMN is a safe option with low risk of postinflammatory hyperpigmentation, even in individuals with darker skin phototypes. RFMN can be safely combined with several other therapeutic modalities to augment clinical outcomes without significant increase in risk of adverse events.
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