BonBoz Clinic

Acne Treatment

Microneedle RF (Radiofrequency)

Microneedling RF combines microneedles penetrating the skin with radiofrequency energy emitted from the needle tips, delivering dual stimulation into the deep dermis with minimal epidermal damage. It offers a faster recovery than CO2 lasers and carries a lower risk of hyperpigmentation — ideal for deep atrophic scars, thick skin, darker skin tones, and enlarged pores; typically requiring 3–4 sessions spaced 4–6 weeks apart.

Compiled from BonBoz Clinic clinical documentation — currently in medical review

Mechanism of Action

Sterile microneedles penetrate the skin at preset depths (0.5–3.5 mm) and deliver radiofrequency (RF) energy directly from their tips, creating controlled fractional heating within the dermis. This thermal energy immediately contracts existing collagen fibers and triggers neocollagenesis and neoelastogenesis over the next 1–3 months; simultaneously, the microneedles create mechanical micro-channels similar to traditional microneedling. Because the RF energy is delivered beneath the surface, the epidermis remains virtually intact with minimal ablation.

How does it differ from traditional microneedling and fractional CO2 laser?

Traditional microneedling only creates superficial mechanical micro-injuries. RF microneedling adds deep thermal coagulation, delivering significantly stronger remodeling for deep scars and skin laxity. Fractional CO2 laser works from the surface downward—highly effective for uneven skin texture, but it ablates the epidermis and carries a higher risk of post-inflammatory hyperpigmentation (PIH). In contrast, RF microneedling works from the inside out while sparing the epidermal surface, making it safer for darker skin types and ideal for patients requiring minimal downtime. Many clinical cases benefit from combining both modalities in a structured protocol.

Who is it suitable for?

Moderate-to-deep boxcar and rolling scars, thick skin; enlarged pores; mild skin laxity along the cheeks and jawline; acne scars on darker skin tones; and patients needing quick recovery times. Less suitable for: very deep ice-pick scars (which typically require TCA CROSS), excessively thin skin, and patients with implanted electronic devices.

Treatment Course & Results

Typically 3–4 sessions spaced 4–6 weeks apart. Mild erythema usually subsides within 1–2 days, followed by faint micro-crusting that flakes off within 3–5 days. Visible improvements generally emerge after the 2nd session and continue to progress for up to 3 months following the final treatment. The degree of improvement varies based on scar depth and individual healing response.

At BonBoz Clinic

A dermatologist performs a detailed skin analysis, tailoring the needle penetration depth and RF energy levels for each specific facial zone (adjusting between thicker areas like the cheeks and thinner areas like the temples). The procedure is performed under topical anesthesia and can be combined with PRP or restorative active serums when clinically indicated. A dermatologist directly performs the treatment and conducts a follow-up assessment before each subsequent session.

Technique variants

1

Superficial RF microneedling

For thin skin or sensitive areas.

2

Deep RF microneedling

For prominent deep scars requiring action in deeper skin layers.

3

Combined RF microneedling

Alternated with subcision or laser therapy according to a customized treatment plan.

When should you see a doctor?

  • Active inflammatory acne or skin infection.
  • Presence of implanted electronic devices — please inform the doctor in advance.
  • History of keloid scarring or susceptibility to post-inflammatory hyperpigmentation (PIH).
  • Currently pregnant or breastfeeding.

How is it performed?

Topical numbing cream is applied for 30–45 minutes. The doctor customizes the needle depth and RF energy levels for each specific area, systematically stamping the tip across the targeted zone in a grid pattern — taking 20–40 minutes for the full face; a mild prickling and warm sensation is to be expected. The procedure is followed by cooling, the application of recovery active serums or PRP, and sunscreen.

Before the procedure

Discontinue topical retinoids for 5–7 days; avoid exfoliating and sun exposure for 1 week prior; inform your doctor of any anticoagulants, implanted electronic devices (pacemakers), history of keloids, or herpes; arrive with clean, makeup-free skin.

After the procedure

Redness and mild swelling for 1–2 days; micro-crusts will dry and naturally peel off after 3–5 days — do not pick or scratch; use a gentle cleanser, apply restorative moisturizer, and wear broad-spectrum SPF 50 sunscreen; avoid makeup for 24–48 hours; avoid saunas and strenuous exercise for 3 days. Follow-up appointment in 4–6 weeks.

Possible risks — your doctor explains them before treatment

  • Mild redness and swelling for 1–3 days; pinpoint bruising is rare
  • Post-inflammatory hyperpigmentation (PIH) — lower risk than CO2 laser, but still possible, especially without proper sun protection
  • Temporary grid-like micro-crusting on the skin
  • Infection due to improper aftercare; herpes reactivation in patients with a prior history
  • Rare: grid scarring or subcutaneous fat loss if energy levels are set too high — requires proper parameter setting by a doctor

Who should NOT have this?

  • Having a pacemaker or implanted electronic devices
  • Active inflammatory acne, dermatitis, or herpes infection in the treatment area
  • Currently pregnant or breastfeeding
  • Predisposition to severe keloid scarring
  • Expecting complete scar removal after a single session
  • Very thin or atrophic skin in the treatment area (RF may cause further thinning)

How BonBoz uses it

Subcision

Subcision involves inserting a specialized needle beneath the skin's surface to break up the fibrous bands anchoring the scar downward. This serves as a core step for rolling scars and is commonly combined with lasers or microneedling to smooth out the skin surface afterward.

Learn about this method →

TCA CROSS

TCA CROSS applies high-concentration acid directly into the base of individual scar pits to stimulate deep-skin regeneration from the inside out—a technique primarily reserved for ice pick scars and deep boxcar scars that surface lasers cannot reach.

Learn about this method →

Microneedling

Microneedling creates thousands of micro-injuries to trigger the skin's natural collagen production. It is minimally invasive with a fast recovery time, making it ideal for shallow scars and uneven skin texture. For deeper scars, standalone microneedling is usually insufficient and requires a combination approach.

Learn about this method →

Acne Treatment

Service page: A specialist physician will examine your condition, recommend a suitable plan, and provide transparent pricing before you make your decision.

Learn about this method →

Want a cost range for your own case?

Estimate the cost →

Cost guidance

The cost depends on the treatment area size, the scar depth, the prescribed number of sessions, and whether additional methods are incorporated into the personalized regimen.

The final price follows the doctor’s recommendation after an in-person exam. A confirmed quote has no hidden extras.

Inside the BonBoz clinic

Bác sỹ BonBoz Clinic soi da cho khách hàng trước điều trị
Bác sỹ BonBoz Clinic thực hiện điều trị laser cho khách hàng
Hệ thống thiết bị laser và ánh sáng tại BonBoz Clinic

Book a consultation with a doctor

Choose a date, time slot and doctor — the clinic calls to confirm within 5 minutes during opening hours. Free consultation, no commitment.

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You do not have to describe your health condition here — you can discuss it directly with the doctor at your visit.

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Frequently asked questions

Is RF microneedling painful?

With topical numbing cream, you will mostly feel a prickling and warm sensation, which is tolerable; the forehead and jawline are more sensitive.

How long is the recovery time?

Redness lasts 1–2 days, and micro-crusts will shed in 3–5 days; many clients return to work the next day with slightly pink skin.

Which is better, RF microneedling or CO2 laser?

It depends on your scar type and skin condition: CO2 is potent for uneven surface texture; RF microneedling is suitable for deep scars, thicker skin, darker skin tones, and those needing quick recovery. The doctor will choose the right option or combine both.

How many sessions are needed?

Typically 3–4 sessions spaced 4–6 weeks apart; mild skin laxity requires 2–3 sessions. Results continue to improve for 3 months after the final session.

Does it thin the skin?

On the contrary, it stimulates collagen production to make the skin thicker and firmer. Only excessively high energy carries the risk of subcutaneous fat loss — which is why it must be performed by a doctor.

Does it cause hyperpigmentation?

The risk is lower than with CO2 laser due to minimal surface damage, but strict sun protection is still required.

Does RF microneedling treat enlarged pores?

Yes, it is one of the best indications as it tightens the follicular walls and reduces sebum production.

Is combining with PRP necessary?

It is not mandatory; PRP aids recovery and may enhance the response in some individuals. The doctor will recommend it based on individual skin conditions.

How long does it take to see scar improvement?

Changes become gradually noticeable after the 2nd session, about 6–8 weeks from the first session, as collagen remodeling takes time.

Who performs the treatment at BonBoz?

A Dermatology specialist sets the parameters and directly performs the procedure.

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