Microneedling questions

Yes, in most studies. A meta-analysis of 12 randomized trials (414 patients) found better objective scar improvement with microneedling without RF than with comparison treatments. In the SkinPen trial, 55% improved at 6 months.[1][2][3]

Usually several, spaced 3 to 8 weeks apart. Scars in a 120-patient series improved at least 50% after an average of 2.5 monthly treatments. The SkinPen trial used 3 treatments 30 days apart.[1][2][3]

Specific devices are authorized for specific uses: facial acne scars, facial wrinkles and abdominal scars in adults 22 and older. SkinPen was first, through De Novo in March 2018. RF microneedling devices are cleared through 510(k).[1][2][3]

In acne scar studies, PRP plus needling did better than needling alone: 62.2% against 45.8% in a 50-patient split-face study. Microneedling devices are not FDA-approved for delivering PRP.[1][2][3]

Needles that carry radiofrequency energy and heat the dermis at the tip. Brands include Morpheus8, Potenza, Vivace, Infini and Genius. The FDA warned in 2025 of burns, fat loss and nerve damage.[1][2][3]

The AAD calls microneedling safe for all skin tones. The FDA notes a risk of darkening or lightening, and that some authorized devices were not studied in darker skin. The SkinPen trial included 11 of 41 subjects with skin types V and VI. A review of 35 studies of RF and RF microneedling in skin types III to VI found a low risk of scarring or hyperpigmentation.[1][2][3]

SkinPen guidance runs from 0.25 mm on the forehead and nose to 1.5 mm for facial acne scars. RF microneedling devices reach 3.5 to 4 mm.[1][2][3]

The FDA lists bleeding disorders, blood thinners, immune suppression, uncontrolled diabetes, active skin infection or cold sores, isotretinoin within 6 months, keloids, pregnancy and a recent tan.[1]

The FDA says RF microneedling is a medical procedure that should not be done at home. Products that only exfoliate the outer layer are generally not regulated as devices.[1][2]

Microneedling leaves the epidermis intact, while ablative lasers injure it. In randomized trials, microneedling caused less post-inflammatory hyperpigmentation than comparison treatments.[1][2][3]