Frequency · Insulation · Depth · Pacific Plaza
Microneedling devices that deliver radiofrequency are sold under many names, and their published specifications differ in frequency, needle insulation, depth range and tips. This guide explains what those differences mean for your skin, what the evidence does and does not show, and how Dr Sin Yong plans RF microneedling at Atelier. The branded devices in the table are not offered at Atelier.
Every platform in this guide does the same basic thing: fine needles enter the dermis and release radiofrequency, which heats small zones of tissue and sets off collagen and elastin repair over the following months. The brand names describe engineering choices, not different treatments.
In the manufacturers' US filings, these systems hold clearance for electrocoagulation and haemostasis, and a few modes also carry wording about facial wrinkles. None lists acne scars as a cleared indication. The evidence for acne scars belongs to RF microneedling as a technique rather than to any single brand.
Specifications
Specifications change between models and versions, so treat this as orientation rather than a buying guide.
| Device | Depth range | Needles and tips | Current and frequency | At Atelier |
|---|---|---|---|---|
| Morpheus8 | Maximum 4.0 mm | Tips with 12, 24 or 40 pins | 1 MHz, bipolar | Not offered at Atelier |
| Potenza | 0.5 to 4.0 mm, adjustable by 0.25 mm | Tips that are insulated or semi-insulated | 1 or 2 MHz; monopolar or bipolar | Not offered at Atelier |
| Sylfirm X | 0.3 to 4.0 mm, adjustable by 0.1 mm | Varies by cartridge | 2 MHz, bipolar; continuous or pulsed | Not offered at Atelier |
| Virtue RF | Not given in the summaries | Arrays of 36, 12 or a single needle | 0.5, 1 or 2 MHz, bipolar | Not offered at Atelier |
| Genius | 0.5 to 3.5 mm, with a later filing to 4.0 mm | A 49-needle array | 460 kHz, bipolar | Not offered at Atelier |
| Scarlet SRF / Pro | 0.5 to 3.5 mm | Gold-plated needles; the Pro adds insulated and non-insulated tips | Bipolar | Not offered at Atelier |
| Vivace | 0.5 to 3.5 mm | A 36-needle array | 1 or 2 MHz, bipolar | Not offered at Atelier |
| Infini | 0.5 to 3.5 mm | A 49-needle array | 1 MHz, bipolar | Not offered at Atelier |
Plain Terms
Frequency. Lower frequencies are generally described as spreading heat more broadly, higher ones as keeping it more localised. It is a tool the operator chooses for a target, not a ranking.
Insulation. Insulated needles release energy only at the tip, so the surface is spared. Non-insulated needles heat along the whole track, which adds surface effect; they can suit broad, shallow texture work once pigment risk has been weighed. A 2023 paper on skin of colour linked surface sparing to a lower risk of darkening in Fitzpatrick III to V skin.
Bipolar or monopolar. Bipolar current runs between neighbouring needles and keeps heat within the array, the usual choice for scars, pores and texture. Monopolar current flows to a return pad and heats a larger, deeper volume.
Stacking. Some platforms fire several pulses or depths per insertion. Whether that helps depends on the layer being treated.
At Atelier, RF microneedling uses insulated needles and bipolar current, with depths set zone by zone. See RF microneedling.
The Evidence
Device-level studies are small, and head-to-head comparisons between brands are rare. A few examples give the flavour:
Taken together, the evidence supports RF microneedling as a method, mainly for atrophic acne scars. It does not show that any one brand gives better results than another.
Myths
At Atelier
Dr SY plans depth by tissue layer, uses insulated needles with conservative energy in darker skin, and sets each zone separately. Tethered scars are released with subcision and deep ice-pick tracts are treated with TCA CROSS before RF microneedling is staged in. Where downtime has to be minimal, Luminescence is discussed as a slower, lower-downtime route.
Wherever you are treated, it is reasonable to ask which tip is used and whether it is insulated, what depth each area gets, how darkening would be handled, and what the treatment will not help with. Brand-to-brand detail for one platform is on Morpheus8 vs RF microneedling, and pigment risk on RF microneedling in Asian skin.
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