Rejuran S and Juvelook are both injected into acne scars to encourage the skin to rebuild. Here is how they differ, which scar types they suit, and what is available at Dernia in Myeongdong.
Rejuran S is a thicker polynucleotide formula injected directly under individual depressed scars to support repair. Juvelook combines PDLLA with hyaluronic acid to stimulate collagen across an area, which helps shallow, rolling scars, texture and pores. Neither erases deep scars alone; most people get the best result by combining an injectable with RF microneedling or laser. Dernia Clinic Myeongdong does not currently offer Rejuran S; it offers Juvelook from ₩299,000 for 2cc and Potenza RF microneedling from ₩299,000, excluding 10% VAT.
Prices are in Korean won, exclude 10% VAT and are confirmed by a doctor at consultation. Dernia does not currently offer Rejuran S.
Rejuran S vs Juvelook: the key difference
Both treatments are injectables used for depressed acne scars, but they work in different ways and are placed differently.
- Rejuran S is a scar-focused member of the Rejuran family from Pharma Research. It uses a more concentrated, thicker polynucleotide (PN) gel injected directly beneath individual pitted scars. The idea is to support tissue repair under each scar so it sits less deep.
- Juvelook, from Vaim Global in Korea, combines PDLLA (poly-D,L-lactic acid) with hyaluronic acid. The HA gives early hydration, while the PDLLA particles stimulate your skin to build new collagen over two to three months. It is spread across a zone such as the cheeks, which helps rolling scars, texture and pores at the same time.
So Rejuran S is scar-by-scar repair, while Juvelook is area-wide collagen building. Dernia does not currently offer Rejuran S. We offer Juvelook and several scar devices, and your doctor can suggest alternatives at consultation. Read more on our Juvelook treatment page.
Which acne scars respond to injectables?
Acne scars are not all the same, and the type matters more than the product name.
| Scar type | What it looks like | Injectables alone? |
|---|---|---|
| Rolling | Soft, wave-like dips across the cheeks | Often respond well, especially to collagen stimulators |
| Boxcar (shallow) | Round or oval dips with defined edges | Partly; usually better with RF microneedling or laser |
| Boxcar (deep) | Sharp-edged, deeper dips | Limited; resurfacing or other procedures usually needed |
| Ice pick | Narrow, deep pits | Limited; injectables rarely enough on their own |
| Red or brown marks | Flat discoloration, not true scars | No; lasers or light treatments work better |
Most people have a mix of scar types. Your doctor maps them before suggesting a plan.
If your concern is mainly flat red or brown marks, see post-acne marks instead — they need a different approach.
How does Juvelook help acne scars?
Juvelook is placed in the dermis across the scarred area. The PDLLA microparticles prompt a gradual collagen response, so the base of shallow scars rises and the surrounding skin becomes thicker and smoother. Because the HA component hydrates at the same time, many people notice a smoother surface early, followed by a more lasting change as collagen matures.
- Sessions: usually two to three, four to six weeks apart
- Visible change: builds over two to three months after each session
- Duration: commonly 12 months or more after a series
- Bonus effects: finer pores and smoother texture across the treated zone
A common concern is lumps. Good dilution, correct depth and aftercare reduce that risk; see does Juvelook cause lumps.
How does Rejuran S work?
Rejuran S is injected in small amounts directly beneath individual depressed scars. The PN is associated with supporting repair and tissue quality, which can gradually soften the depth of each scar over a series. It is often chosen for patients who prefer a repair-focused product or whose scars are scattered rather than spread across one zone.
Because Dernia does not offer Rejuran S, we cannot quote a price for it. If you are drawn to the PN approach, ask about Rejuran Healer, which some doctors use with extra product placed in scarred areas, or a combined device plan.
Why combination plans usually work best
Injectables improve the skin from within, but acne scars often have fibrous bands that tether the surface down, along with edges that need remodeling. That is why doctors in Korea commonly pair an injectable with a device:
- Potenza RF microneedling delivers heat below the surface to remodel scar tissue and stimulate collagen, with 2–4 days of redness.
- CO2 fractional laser resurfaces deeper boxcar and rolling scars but needs 5–7 days of downtime.
- Pico fractional is a gentler option for shallow scars and texture.
Our acne scar treatment plan guide explains how these are sequenced.
What happens on treatment day
- Scar mapping. A licensed doctor examines your scars under good light, often from several angles, and identifies which are rolling, boxcar or ice pick. This decides whether an injectable, a device or a combination makes most sense.
- Plan and price. The doctor explains the plan in English, how many sessions are realistic during your stay, and the final price before anything begins.
- Numbing. Topical numbing cream is applied for 30–40 minutes. RF microneedling uses numbing as standard.
- Treatment. For combination plans, the device is usually performed first and the injectable afterward, or on a separate day, depending on your skin.
- Soothing and aftercare. Cooling or a calming mask, then written aftercare instructions and a contact point for questions after you leave.
Expect the whole visit to take one to two hours including consultation and numbing. Bring photos of how your scars looked at their worst and any previous treatments, which helps the doctor judge how your skin responds to injury and healing.
Who is a good candidate?
Usually a good fit
- Shallow rolling scars on the cheeks or temples
- Mixed scars with rough texture and enlarged pores
- Stable skin with no active breakouts
- Patience for gradual change over months
Talk to the doctor first
- Active acne or recent isotretinoin use
- Mostly deep ice pick or sharp boxcar scars
- History of keloid or raised scarring
- Pregnancy, breastfeeding or skin infection
Risks and side effects
Expected effects for both injectables include redness, swelling, small bumps and possible bruising for one to three days. With collagen stimulators such as Juvelook, there is a small risk of nodules or lumps if the product is placed too superficially or unevenly, which is why technique matters. As with any injection, infection and rare vascular complications are possible. Avoid saunas, alcohol and intense exercise for the first day or two, and follow massage instructions if your doctor gives them.
How much do acne scar treatments cost in Seoul (2026)?
| Treatment at Dernia | Plan | Price (KRW) |
|---|---|---|
| Juvelook | 2cc, one zone such as both cheeks | ₩299,000 |
| Juvelook | 4cc, full face | ₩549,000 |
| Potenza RF microneedling | Full face, 1 session | ₩299,000 |
| Potenza RF microneedling | Full face with booster | ₩399,000 |
| CO2 fractional laser | Full face, 1 session | ₩199,000 |
Prices exclude 10% VAT. The tourist VAT refund on cosmetic procedures ended on January 1, 2026 — see payment & tax. See the Juvelook price page for all plans.
Planning acne scar treatment around your Seoul trip
- Set realistic goals. Scars improve in percentages over a series; one visit is a start rather than a finish.
- Allow downtime. Juvelook bumps settle in a few days; Potenza needs 2–4 days of redness; CO2 needs about a week.
- Avoid your arrival day and do more intense treatments early in your trip, not the day before you fly.
- Location. Dernia is in Myeongdong, near Myeongdong Station (Line 4) and Euljiro 1-ga Station (Line 2).
- Book ahead with photos of your scars through our consultation form.
Sun matters after scar treatment. Healing skin can darken with UV exposure, especially after devices. Use broad-spectrum sunscreen daily and follow our aftercare guide while you sightsee.
Frequently asked questions
Does Dernia offer Rejuran S?
Dernia does not currently offer Rejuran S. Juvelook, Rejuran Healer and scar devices such as Potenza and CO2 fractional laser are available, and your doctor can suggest alternatives.
Is Juvelook good for acne scars?
Juvelook can help shallow rolling scars, texture and pores by stimulating collagen. Deep ice pick or sharp boxcar scars usually need a device or other procedure as well.
How many Juvelook sessions do I need for scars?
Usually two to three sessions, four to six weeks apart, with results building over two to three months after each one.
Can I combine Juvelook with Potenza?
Yes, the combination is common for acne scars. Your doctor decides whether to do them on the same day or stage them.
Will acne scars disappear completely?
Complete removal is unlikely. The realistic goal is a meaningful softening of scar depth and smoother texture over a series.
How much is Juvelook at Dernia?
Juvelook starts from ₩299,000 for 2cc and ₩549,000 for a 4cc full-face session, excluding 10% VAT.
Planning acne scar treatment in Seoul?
Send photos of your scars and your travel dates. A doctor maps your scar types in person, explains the options in English and confirms your plan and price.
Book a consultation View 2026 pricesRelated reading
This article is for general information and does not replace a medical consultation. Results vary between individuals, and suitability, treatment plan and final price are confirmed by a licensed doctor after an in-person examination. Dernia Clinic Myeongdong does not publish patient testimonials or before-and-after claims.