RF microneedling devices compared:
what each one actually is

Why compare RF microneedling devices at all?

Because the same treatment is sold under many brand names, and different brands deliver the same treatment. Every device on this page drives an array of fine needles into the skin to a depth the operator sets, then passes radiofrequency current through or between the needles so that small columns of tissue are heated and the skin lays down new collagen as it repairs. That is what RF microneedling is, whatever the logo on the handpiece.

Where devices genuinely differ is in engineering: the frequency of the current, whether the needle shaft is insulated, how far down the needle can go and in what increments, how many needles are on a tip, and whether energy is delivered as one continuous pulse or as several short ones. Those choices change how heat is distributed and how a treatment feels. They are worth understanding, provided they are read as parameters a doctor sets rather than as results a brand delivers.

The nine devices side by side

The table below is taken from each manufacturer’s US FDA 510(k) summary, the document a company files to show its device is substantially equivalent to one already on the market. Where a figure is not in those filings it is marked as such rather than filled from marketing.

What do frequency and insulation actually change?

Radiofrequency current heats tissue because the tissue resists it. Frequency affects how that heat spreads: across devices, lower frequencies are generally described as producing a broader zone of heating and higher frequencies a tighter one, and some systems offer more than one frequency so the operator can choose. Genius files at 460 kHz; Morpheus8 and Infini at 1 MHz; Secret RF and Sylfirm X at 2 MHz; Potenza, Vivace and Virtue RF offer two or three frequencies, including 2 MHz. A frequency is a tool, not a ranking.

Insulation decides where along the needle the heat is released. An insulated needle carries current down a coated shaft and releases it at the exposed tip, sparing the surface; a non-insulated needle heats along its length, producing a column of heating that reaches up towards the epidermis. In Fitzpatrick III to V skin, which describes most patients in Singapore, sparing the surface matters because surface heat is what raises the risk of post-inflammatory darkening. A review of 35 studies of RF microneedling in skin of colour reported transient darkening in a minority of studies and concluded the risk of scarring or darkening was low (Syder, Dermatol Surg 2023).

What the FDA filings say the devices are cleared for

In the 510(k) summaries reviewed, every microneedle RF system on this page is cleared in the US for electrocoagulation and haemostasis, the generic language of electrosurgical devices. A few specific modes carry additional wording for the percutaneous treatment of facial wrinkles: Infini, Vivace at 1 MHz and Virtue RF’s Smart RF handpiece at 1 MHz, each for skin types I to V. None of the summaries lists acne scars as a cleared indication.

That does not mean RF microneedling is unproven for scars. The published evidence for atrophic acne scarring sits at the level of the technique rather than any one brand, and a 2026 systematic review of 41 studies tabulates results device by device (Kumar, Aesthetic Plast Surg 2026). It does mean that no device here is cleared in the US specifically for acne scars. In Singapore, devices are regulated by the Health Sciences Authority, and the doctor using one remains responsible for using it within its registration.

What evidence exists for each device?

Device-specific trials are few, and most are small. A sample of what has been published:

• Secret RF. A split-face randomised trial in 25 Korean patients with active acne compared microneedle fractional RF with a 1450 nm diode laser; the RF side showed greater improvement at 12 weeks and post-inflammatory darkening was seen only on the laser side (Kwon, JEADV 2018). The device is identified in a later systematic review rather than in the abstract.
• Potenza. An evaluator-blinded split-face trial in 20 patients with acne scars found improvement on both sides, with no significant additional benefit from adding a picosecond laser (Darji, Dermatol Surg 2025).
• Genius. A study of 11 Korean patients reported improved periorbital wrinkle scores (Kim, Ann Dermatol 2023).
• Scarlet. A trial of 40 patients with active acne compared microneedle RF plus isotretinoin with isotretinoin alone (Hasan, Postepy Dermatol Alergol 2023).
• Virtue RF. Published work found was preclinical, in an animal model (Cho, Skin Res Technol 2024).

Small numbers, short follow-up and few head-to-head comparisons are the norm. That is why this site does not rank one device above another, and why the more useful comparison is between treatment plans.

“The brand on the handpiece is the least important decision in RF microneedling. Depth, needle type and energy for each zone of your face are the decisions that matter, and those are made by the doctor.”

Dr Sin YongOn comparing RF microneedling devices

How Dr Sin Yong uses Secret DUO

Dr Sin Yong performs RF microneedling personally on the Secret DUO, which combines Secret RF microneedling with a 1540 nm non-ablative fractional laser on one console. Planning starts with the tissue plane: he decides the depth at which each scar, pore field or area of laxity sits before choosing needles, depth or energy. Insulated needles are generally his choice in Fitzpatrick IV to VI skin; non-insulated needles are used for broad, shallow textural work. Depth and energy are set zone by zone, deeper over the cheeks and jaw and conservative around the eyes and over bone.

The platform’s I-STACK function, described by the manufacturer as delivering up to ten sub-pulses at each needle position, is one way he layers energy at more than one depth without re-inserting. Where the skin around a scar also needs work, the 1540 nm laser can be used in the same visit. Tethered scars are released by subcision and deep ice-pick scars treated with TCA CROSS first, so that RF microneedling is staged after the steps it cannot do itself. Only the Secret DUO is used here; the other devices on this page are described because patients ask about them.

Questions to ask any clinic, whichever device it uses

• Which tip or cartridge will be used, and are its needles insulated?
• What depth is planned for each area of my face, and why that depth?
• How will the energy be set for my skin type, and what happens if darkening appears afterwards?
• Is the person setting those parameters the doctor who examined me?
• What will not be helped by RF microneedling, and what would be done for that instead?

Device-by-device comparisons: Secret RF vs Virtue RF · Secret RF vs Potenza · Morpheus8 vs Secret RF · Sylfirm X vs Secret RF · Secret RF vs Genius · Secret RF vs Scarlet · Secret RF vs Vivace. The device itself: Secret RF in Singapore.