Key facts
- Delivery
- Microneedles penetrate to a set depth, typically adjustable between about 0.5 and 3.5 mm
- Energy
- MHz-domain radiofrequency released at the needle tips, not light
- Effect
- Controlled coagulation zones in the dermis with the surface largely spared
- Used for
- Rolling and shallow boxcar acne scars, enlarged pores, uneven texture, early laxity
- On this site
- Performed on the Secret Duo platform, for which Dr Sin Yong is an ilooda-appointed trainer
What is RF microneedling?
RF microneedling places an array of fine needles into the skin to a set depth and passes radiofrequency current between or from their tips. Resistance in the tissue turns that current into heat, creating small, controlled zones of coagulation in the dermis while the surface between the needles is largely spared. Needles may be insulated along the shaft, so that heat is released only at the tip, or uninsulated, which heats along the whole track.
The body responds to those thermal zones by laying down new collagen and elastin over the following weeks and months. That remodelling, rather than any immediate change, is the mechanism. It is not a laser: there is no light and no chromophore, the energy is electrical and delivered by contact, which is one reason it is workable across Fitzpatrick III to V skin, where surface-heavy heat carries more pigment risk.
How is it used in aesthetic medicine?
Its natural territory is dermal problems that sit below the reach of creams: rolling and shallow boxcar acne scars, enlarged pores, rough or crepey texture, static fine lines and the early slackening along the jaw that precedes jowling. Dr Sin Yong performs RF microneedling on the Secret Duo platform, setting needle depth and energy zone by zone, deeper on the cheeks and jaw and conservative around the eyes and bony areas, after examining what is driving the texture.
Topical anaesthetic is applied first, and most people describe pressure and warmth rather than pain. Redness and pinpoint marks are expected afterwards and settle over days; recovery varies with the settings and the skin. Because remodelling is gradual, progress is reviewed over a course rather than judged at one visit. The same radiofrequency platform, used on the body, is the basis of his 4K Body Lift protocol.
“Nothing shrinks a pore. Remodelling the collagen around it is the honest version of that promise.”
Dr Sin YongOn what RF microneedling can do for enlarged pores
What is it often confused with?
A microneedling facial uses a pen or roller to make fine channels, and the repair response to those channels is the whole mechanism; adding a serum changes what sits in the channels, not how deep the effect reaches. RF microneedling is a different category, because the needles are only the delivery route for heat placed in the dermis. The two should not be compared on the word they share.
It is also confused with fractional lasers. A fractional CO2 laser vaporises columns of skin, surface included, and can physically remodel a sharp scar edge; RF microneedling heats the dermis with limited surface ablation. Monopolar radiofrequency devices such as Thermage or Volnewmer deliver heat from a surface tip through the whole dermis without needles. Each reaches a different depth in a different way, which is why some plans combine them in sequence.
When is it not the answer?
RF microneedling does not release the fibrous bands beneath a tethered rolling scar; subcision does that, and is usually sequenced first. It does not reach the floor of a deep ice pick scar, which is the territory of TCA CROSS, and it does not ablate scar walls the way a CO2 laser does. For deep and mixed scarring, Dr Sin Yong's S3 Resurfacing Lift is the resurfacing step, with RF microneedling used for milder texture or as a lighter option between courses.
Nothing shrinks a pore permanently; remodelling the collagen around it changes how the pore looks, and expectations are set accordingly. Established laxity belongs to lifting protocols rather than needles, expression lines answer to botulinum toxin, and pigment is a separate problem matched to other tools. Active acne, infection or inflammation in the area means treating that first.
