The downtime for RF Microneedling is typically minimal (1-2 days). Patients usually experience some redness, similar to a moderate sunburn, which resolves quickly.
December 23, 2025
Not all acne scars are the same. Some sit closer to the surface, while others extend deep into the skin. Knowing your scar type helps you choose the right treatment, avoid months of ineffective procedures, and set realistic expectations.
 Scar Type | How It Looks | Depth | Why It Forms |
 Ice-Pick Scars | Deep, narrow pits that look like tiny “puncture marks” | Deepest among the 3 types | Severe inflammation from acne destroys collagen vertically, creating a narrow tunnel-like defect |
 Boxcar Scars | Round or oval depressions with sharp, clear edges | Moderately deep, with clear borders | Loss of collagen (atrophy) leaves a box-like defect |
 Rolling Scars | Broad wavy depressions with sloping edges, typically more obvious under harsh lighting | Medium to deep, often attached to fibrotic (scar) bands underneath | Scar tissue pulls the skin downward, creating uneven skin texture |
Both traditional microneedling and microneedling with RF work on the same fundamental principle: they create tiny, controlled micro-injuries in the skin. These micro-injuries signal the body that repair work is needed. Instead of causing damage, these micro-injuries strategically activate the skin’s natural healing pathways. This is essentially the stimulation of collagen, which repairs and smoothens the area. This is similar to how muscles grow stronger after light, controlled exercise.
Think of your skin as a large, organized construction site. When microneedling creates micro-holes:
The injuries are tiny, controlled, precisely spaced and uniform, unlike the scarring from acne itself which results from severe localized inflammation. This is why you get a much smoother outcome over time with microneedling.
Traditional microneedling uses manual or automated pens or rollers that penetrate the skin at 0.5–1.5 mm. At this depth, the needles primarily target the more superficial skin layers (epidermis and upper dermis) where mild textural irregularities sit.
What traditional microneedling does:
Think of it as polishing the surface of a dented car – helpful but limited in how deep it can be repaired.
Where traditional microneedling falls short is the depth and lack of RF energy.
Acne scars extend far below the reach of shallow needles. This means traditional microneedling often:
This is why patients with long-standing or severe acne scarring often feel discouraged after months of salon microneedling: the treatment simply doesn’t reach where the scar lies. With regards to the benefits of RF, this will be explained further in the next section.
RF microneedling uses needles that penetrate up to 4mm, a depth that safely reaches the deep dermis, where most acne scars are formed. But depth isn’t the only upgrade.
Once the needles reach the desired layer, they release radiofrequency heat, which:
This dual effect of mechanical injury and thermal energy makes RF microneedling significantly more effective for true acne scar remodeling.
Certain acne scars like rolling scars are held down by fibrotic bands (dense, rope-like scar tissue) that pulls the skin downward.
RF microneedling helps by:
The micro-needles create deeper micro-injuries that physically disrupt tight scar strands.
The radiofrequency energy heats the tissue, causing old, abnormal collagen to break down and promoting the production of new, uniform collagen.
This process triggers a strong healing response as your skin repair cells produce new, healthy collagen that lifts and smoothens depressed scars.
The result? A more noticeable improvement in texture, scar depth, pore size and even mild skin laxity.
| Outcome | Traditional Microneedling | RF Microneedling |
|---|---|---|
| Scar Depth Improvement | Mild improvement over multiple sessions if scars are shallow | Moderate to significant improvement even for deeper scars |
| Texture Smoothing | Good for mild roughness and textural changes | Excellent smoothing even for long-standing textural issues |
| Pore Size Reduction | Minimal | Strong tightening effect due to deep collagen stimulation |
| Skin Tightening | Minimal | Substantial, due to stimulation of collagen in deeper layers |
| Response Time | Gradual, might not notice significant changes | Faster; visible changes from early sessions |
| Ability to Break Fibrotic Scars | Limited as unable to reach deeper layers | Effective at breaking deep scar tissues and stimulating deep repair |
| Downtime | Very minimal (1 day) | Minimal (1-2days) |
RF microneedling seem similar to traditional microneedling but the technology, depth and risks are very different and are only performed by aesthetic doctors.
In Astria, prior to treatment, you will get:
The combination of medical care and advanced technology allows RF microneedling to deliver powerful, long-lasting improvements, especially for moderate to severe acne scars.
RF energy penetrates deep layers of skin, generating controlled heat. Incorrect use can cause burns, pigmentation or scarring. Doctors adjust the needle depth and energy level according to your skin type and condition. Knowledge of skin anatomy is important to allow such adjustments to be made hence it is mandated that only doctors can perform RF microneedling.
Singaporeans often have skin types which are more sensitive to post-inflammatory hyperpigmentation (PIH). Proper energy adjustment by a medical professional prevents unwanted damage to the skin and reduces the risk of PIH.
RF microneedling, because it uses radiofrequency energy and deep dermal penetration, is legally restricted to medical clinics only. This ensures patients receive treatments in a controlled, sterile and medically supported environment.
Conclusion
If you’re unsure whether microneedling with RF suits your skin, the best next step is a professional assessment. At Astria, our doctors will evaluate your scar type, skin sensitivity and treatment history before recommending a treatment plan best suited for you.
Book a consultation today and take the first step toward smoother, healthier and more confident skin.
RF Microneedling uses needles that penetrate deeper (up to 4mm) and delivers radiofrequency heat energy to the deeper layers of the skin. Traditional Microneedling only targets the superficial skin layers (0.5-1.5mm) and relies only on mechanical injury. The added RF energy is what allows for stronger collagen production and the breakdown of deep scar tissue.
RF Microneedling is significantly better for established and deeper acne scars, such as Boxcar and Rolling scars. This is because the deeper penetration and the thermal energy from the RF can reach and break down the tough, fibrotic bands that anchor deep scars, which traditional microneedling cannot do.
The downtime for RF Microneedling is typically minimal (1-2 days). Patients usually experience some redness, similar to a moderate sunburn, which resolves quickly.
RF Microneedling is classified as a medical procedure due to the use of deep dermal penetration and radiofrequency energy. Only licensed aesthetic doctors are qualified to safely adjust the needle depth and energy levels to maximize results and minimize risks like burns or hyperpigmentation, especially in Asian skin types.
Traditional microneedling is generally ineffective for deep Ice-Pick scars because the shallow needle depth cannot reach the base of these deep, narrow defects. Ice-Pick scars usually require stronger, deeper treatments, often including RF microneedling or combination treatments prescribed by a doctor.
Medically Reviewed by
AESTHETIC DOCTOR
Dr. Marcus earned his Bachelor of Medicine and Bachelor of Surgery (MBBS) from Newcastle University in the United Kingdom. His early medical training included rigorous rotations across multiple specialties in both the UK and Singapore, providing him with a strong foundation in patient care and clinical excellence…
Whether you have questions about our treatments, want to book an appointment, or simply like to learn more about how we can help you achieve your skin goals, our team is here to assist!
Astria Medical Aesthetics believes in a sustainable aesthetic journey. Beauty can be a continuous, timeless goal.
51 Bras Basah Road, #04-06A
Lazada One, Singapore 189554
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(Last appointment: 7.30pm)
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