Sylfirm X in Singapore:
what the device is, and an honest guide to the alternatives

What is Sylfirm X, and is it a different treatment?

Sylfirm X is one brand of radiofrequency microneedling device. RF microneedling is the treatment. Every system in this category does the same basic thing: fine needles are driven to a set depth in the dermis, radiofrequency current flows from them, and the heat creates small controlled zones of coagulation that the skin repairs with new collagen.

Sylfirm X is made by Viol in Korea. It was cleared by the US Food and Drug Administration in 2020 under the regulation for electrosurgical cutting and coagulation devices. Its filings describe a bipolar 2 MHz system with continuous-wave and pulsed-wave modes and adjustable needle depth.

Clinics in Singapore often offer it under its own name. That is where confusion starts. A patient can be offered Sylfirm X at one clinic and RF microneedling at another and believe they are choosing between two treatments. They are choosing between two devices that deliver the same category of treatment with different engineering. The engineering differences are real, and they are set out below. They are not the first question. The first question is whether RF microneedling of any brand is the right tool for the problem in front of you.

Sylfirm X pulsed-wave mode: what it does

The pulsed-wave mode delivers radiofrequency in very short, repeated bursts rather than as one continuous flow. It is the feature Sylfirm X is most recognised for. In laboratory work on pulsed-type bipolar radiofrequency through non-insulated needles, the short pulses produced small zones of coagulation in the dermis together with thickening of the basement membrane, the layer between the epidermis and the dermis, and narrowing of small blood vessels.

That is why Sylfirm X is discussed for conditions where the basement membrane and small vessels are thought to matter: melasma, Riehl melanosis and rosacea-type redness. A Korean series of forty-four patients with refractory melasma or Riehl melanosis treated in pulsed mode reported clinical improvement in most, with no serious adverse events. It was a single-arm study without a control group, so it shows what the device can do rather than how it compares with other options.

The continuous-wave mode is conventional RF microneedling. It produces the larger coagulation columns used for atrophic acne scars, enlarged pores, texture and early laxity. A clinic offering Sylfirm X for scars is, in practical terms, offering RF microneedling for scars.

“The device is the instrument, not the treatment. I start from the scar, and the scar tells me whether needles are the right tool at all.”

Dr Sin YongOn choosing an RF microneedling device

Who RF microneedling such as Sylfirm X may suit, and who it does not

Rolling and shallow boxcar acne scars, enlarged pores, uneven texture and early laxity are the problems for which RF microneedling has the strongest support, whatever the brand. Each involves dermal collagen that has been damaged or slowly lost, and controlled heat at a chosen depth is a reasonable way to prompt remodelling while sparing the surface. In Fitzpatrick III to V skin, delivering heat below the epidermis lowers, without removing, the risk of post-inflammatory darkening.

Where RF microneedling is not the first step

• A tethered rolling scar is held down by fibrous bands. Heat does not release a band; subcision does, and needling is staged afterwards.
• A deep ice-pick scar is a narrow well, better matched to TCA CROSS than to needles that pass beside it.
• A discrete sun spot is a laser problem, not a needling one.
• Laxity below the dermis belongs to lifting protocols.

Reasons to wait

• Active acne, infection or a cold sore flare in the area.
• Pregnancy, a recent tan, or recent oral acne medication, which changes timing.
• Pacemakers or other implanted electronic devices, which rule out radiofrequency.

Melasma deserves its own line. It is a chronic condition with hormonal, vascular and ultraviolet drivers. Any energy-based treatment, pulsed or not, is a conservative supporting step inside a plan built on sun protection and topical therapy.

Not used at this practice: Secret DUO and the alternatives considered

Sylfirm X is not used here. Dr Sin Yong performs RF microneedling personally on Secret DUO, made by ILOODA in Korea. The two platforms differ in three practical ways, and Secret RF on Secret DUO is the platform Dr Sin Yong prefers and uses.

Insulated needles release energy only at the tip, so the heat bypasses the pigmented epidermis. They are generally Dr Sin Yong's choice in darker skin types; non-insulated needles suit broad, shallow textural work. Where a pulsed delivery is thought to suit a pigment- or redness-adjacent concern, that is a point in Sylfirm X's favour, and it is said plainly.

What is considered here instead

• Scars and pores: Secret RF on Secret DUO, with subcision or TCA CROSS first where the scar type calls for it.
• Melasma: a medical plan first, with conservative energy treatment such as laser toning as a supporting step.
• Redness: the 675 nm laser on the DEKA RedTouch Pro or R2 Glow, after the cause of the redness is assessed.

Dr Sin Yong was appointed by ILOODA to share his Secret DUO microneedling expertise with other doctors. That is disclosed here because it is relevant to reading a comparison written by him.

What RF microneedling involves, and aftercare in broad terms

Whichever device is used, an RF microneedling visit follows the same broad shape. The skin is cleansed, a numbing cream is applied, and the needles are passed over each zone at the depth and energy chosen for it. Heat is felt as warmth and prickling. Comfort varies between people and between areas, and it is discussed beforehand.

Afterwards the skin is usually red and warm, sometimes with mild swelling and fine pinpoint marks where the needles entered. How visible that is depends on the depth, the energy, the needle type and your skin. Non-insulated needles, which release heat along the shaft, tend to produce more surface reaction than insulated needles, which is one reason needle choice is matched to skin type.

Sensible aftercare

• Gentle cleansing and a plain moisturiser while the skin settles.
• No scrubs, acids or retinoids until the doctor says they can restart.
• Daily broad-spectrum sun protection, because darkening after heat is the main risk in Asian skin.
• No picking at any small crusts.

When to call the doctor

• Increasing pain, heat, swelling or pus, which may suggest infection.
• Blistering or crusting beyond fine pinpoint marks.
• Darkening that spreads after the skin should have settled.

The RF microneedling aftercare page sets out the instructions given after treatment here.

How the plan is decided, and what to ask about Sylfirm X in Singapore

Compare the plan, not the machine. A brand name tells you which device is in the room. It does not tell you what your scars are, how deep they sit, which needle type will be used, at what depth and energy, or whether anything should be done before the needles go in.

What decides the plan here:

• Scar type and depth, mapped at examination: rolling, boxcar, ice-pick or tethered.
• Fitzpatrick skin type and any history of darkening after energy treatments.
• Whether pigment or redness is part of the picture, and its cause.
• Whether release techniques are needed first.
• Recent treatments elsewhere, which change timing and settings.

If you were offered Sylfirm X for melasma or redness, the useful first step is a diagnosis. Melasma, sun spots, post-inflammatory darkening and red acne marks can sit side by side on one face, and each needs a different tool. Pigment is examined for depth and cause, redness is checked to see whether it is blood in vessels or inflammation, and only then is an energy treatment chosen. A device chosen before that examination is a guess.

Questions worth asking at any clinic

• What type of scar, pore or laxity is this, and has it been examined rather than assumed?
• Will insulated or non-insulated needles be used, and why does that suit my skin?
• Is subcision or TCA CROSS planned first?
• Who performs the treatment, and who reviews me if the skin darkens?

If you have already had Sylfirm X elsewhere, bring the dates, the mode used if you know it and how your skin responded. Fees follow the plan and are set out in writing at consultation; how fees are quoted explains what the quote contains.