
Dr. Yoon-Gon Ryu
Flagship clinic · KOL for leading lifting & regenerative devices · Featured in Authority Magazine (2026)
Most patients start with an initial course of 3 to 4 Rejuran Healer sessions spaced 2 to 4 weeks apart, then top up every 6 to 12 months.
Most people need an initial course of 3 to 4 Rejuran Healer sessions, spaced 2 to 4 weeks apart, followed by maintenance every 6 to 12 months. The exact number depends on your skin quality, age, and goals, so at Reberry Clinic in Korea the plan is confirmed after an in-person assessment rather than fixed in advance.
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Rejuran Healer is an injectable skin booster made from polynucleotides (PN), long-chain fragments of purified DNA derived from salmon. Rather than adding volume like a filler, it is designed to improve skin quality from within: helping the skin repair, boosting hydration, and supporting a smoother, more resilient texture over a course of treatments. Because it works by stimulating the skin’s own repair processes, results build gradually across several sessions rather than appearing instantly.
This is exactly why the number of sessions matters. A single treatment introduces polynucleotides into the dermis, but the cumulative effect on firmness, fine lines, and glow comes from repeating the process while the skin responds. Most protocols therefore recommend an initial course of 3 to 4 sessions, spaced 2 to 4 weeks apart, so each treatment builds on the last. Skin that is more mature, sun-damaged, or dehydrated may benefit from the higher end of that range.
Reberry Clinic is a dermatology clinic serving international patients across three Seoul-area locations (Gangnam, Myeongdong, Incheon Airport), with English-speaking support. The clinic’s doctors assess your skin and set a realistic session plan rather than promising a one-size-fits-all number. You can read more about the treatment itself on our Rejuran Healer page.
Rejuran Healer uses polynucleotides (PN/PDRN), purified salmon-derived DNA fragments, injected into the upper dermis. These molecules act as a scaffold that supports fibroblast activity and holds moisture, which is how the treatment gradually improves elasticity and texture. Because this is a biological repair process, not an immediate cosmetic fill, the skin needs repeated exposure over weeks to accumulate a visible change, which is why 3 to 4 sessions are standard.
The 2 to 4 week interval between sessions is deliberate: it gives the skin time to respond before the next dose reinforces the effect. Skipping the course or having a single session usually produces a subtle, short-lived result. Rejuran Healer is a skin-quality booster, so it is often planned alongside other skin treatments such as glass-skin care; the clinic’s doctors sequence these to complement rather than overload the skin.
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In about 10 to 15 minutes, the clinic’s doctors review your skin quality, age, and goals to set how many of the usual 3 to 4 sessions you need.
Polynucleotides are injected across the treatment area; numbing cream is applied for roughly 20 to 30 minutes beforehand for comfort.
Sessions are repeated at 2 to 4 week intervals so the skin responds between each of the 3 to 4 treatments.
After 3 to 4 sessions over about 6 to 12 weeks, the cumulative improvement in texture and hydration is most visible.
A top-up session every 6 to 12 months helps sustain results, adjusted to how your skin holds the effect.
See representative outcomes from Reberry Clinic. Results build gradually and vary by individual; your plan is assessed at consultation.




An English-language consultation assesses your skin and confirms how many of the usual 3 to 4 sessions suit your goals and timeline.
After numbing for about 20 to 30 minutes, each session takes roughly 15 to 30 minutes of injecting across the treatment area.
The initial course of 3 to 4 sessions runs over about 6 to 12 weeks, spaced 2 to 4 weeks apart.
Skin texture and hydration improve gradually over the course, becoming clearest a few weeks after the final session.
A maintenance session every 6 to 12 months helps sustain results; gentle care and sun protection support healing between visits.



Most people need an initial course of 3 to 4 sessions spaced 2 to 4 weeks apart, since the effect builds cumulatively. Skin that is more mature or dehydrated may need the higher end. The clinic’s doctors confirm your exact number after assessment, as explained on our Rejuran Healer page, rather than fixing it in advance.
A single session introduces polynucleotides but usually gives only a subtle, short-lived result, because the skin needs repeated exposure over weeks to accumulate visible change. That is why 3 to 4 sessions are standard, each spaced 2 to 4 weeks apart. The course, not one treatment, is what improves texture, hydration, and firmness meaningfully over time.
Sessions are usually spaced 2 to 4 weeks apart, giving the skin time to respond before the next dose reinforces the effect. Spacing them too closely offers little extra benefit, while long gaps slow progress. Your doctor sets the interval within this range based on how your skin reacts across the initial course.
Rejuran Healer suits most adults wanting better skin texture, hydration, and resilience rather than added volume, though pregnancy, salmon allergy, or active skin infection are reasons to postpone. A consultation confirms suitability first. If volume is your goal, the clinic may discuss injectable fillers instead, which work differently.
Most patients feel only mild discomfort, since numbing cream is applied for about 20 to 30 minutes before each session. You may notice small pinches as the polynucleotides are injected across the area. Any stinging is brief, and the practitioner adjusts technique to keep each of your sessions as comfortable as possible.
Downtime is minimal; expect brief redness, mild swelling, or small bumps at injection points for about 1 to 3 days, which settle before your next session. Most people resume normal activities the same day. Because the 2 to 4 week interval allows full recovery, downtime rarely disrupts a course or a travel schedule.
Results build gradually, becoming clearest a few weeks after your final session as the skin completes its repair response. Many notice improved hydration and smoothness partway through the 3 to 4 session course. Because the effect is cumulative, patience across the full course gives a better outcome than judging after a single treatment.
After completing the initial course, results commonly last several months to around a year, depending on your skin, age, and lifestyle. A maintenance session every 6 to 12 months helps sustain the improvement. Because Rejuran Healer supports skin quality rather than being a one-time fix, occasional top-ups keep the effect consistent over time.
After the initial 3 to 4 session course, most people maintain results with a single session every 6 to 12 months, adjusted to how well your skin holds the effect. Your doctor sets a realistic rhythm at review, as outlined on our Rejuran Healer page. This schedule is easy to combine with periodic visits if you travel to Seoul.
Yes, Rejuran Healer is often planned alongside other skin-quality treatments, and the clinic’s doctors sequence them so they complement rather than overload the skin. For example, it pairs well with glass-skin care for overall glow. Combining is planned at consultation so timing and session counts stay safe and effective.
Expect mild redness, small bumps, slight swelling, or tenderness at injection points for about 1 to 3 days, which resolve on their own. Bruising is possible but usually minor. Serious reactions are uncommon with proper technique, so most patients continue their course and travel plans without needing extra recovery time between sessions.
Keep the area clean, avoid heavy makeup and vigorous exercise for about a day, and apply sunscreen daily. Gentle hydration supports healing between your 2 to 4 week intervals. A suitable skin care routine maintains the skin quality Rejuran Healer builds, and the clinic provides written aftercare for travellers.
Rejuran Healer improves skin quality using polynucleotides over a course of sessions, whereas filler adds immediate volume in one visit. The two solve different goals and are sometimes combined. If contour or volume is your aim, the clinic may suggest injectable fillers, which work in fewer sessions but for a different purpose.
Each Rejuran Healer session needs only a day, including a short consultation, since downtime is minimal and redness settles within a few days. Because sessions are 2 to 4 weeks apart, most international patients complete part of the course per trip. Our English team coordinates timing so visits fit your schedule.
Yes, flying soon after a session is generally fine, often the same day, because the treatment is minimally invasive with only brief redness or small bumps. Keep the skin clean and hydrated in transit and apply sunscreen on arrival. Any specific guidance for your plan is given before you travel back.
You can complete part of the initial course per trip and return for the remaining sessions, since the 2 to 4 week spacing allows flexibility. English-language remote check-ins help review progress and plan your next visit. Your treatment notes stay on file so any doctor at our Seoul locations can continue your plan smoothly.
| Rejuran Healer | Juvelook | HA skin booster | |
|---|---|---|---|
| Mechanism | Polynucleotide (salmon DNA) skin repair | PDLLA collagen stimulator | Hyaluronic acid hydration |
| Best for | Skin quality, texture, resilience | Firmness and gradual collagen boost | Deep hydration and glow |
| Typical initial course | 3 to 4 sessions | 2 to 3 sessions | 3 or more sessions |
| Session interval | 2 to 4 weeks apart | 3 to 4 weeks apart | 2 to 4 weeks apart |
| Pain / comfort | Mild; numbing cream used | Mild; numbing cream used | Mild; numbing cream used |
| Downtime | Brief redness or small bumps for 1 to 3 days | Brief redness for 1 to 3 days | Minimal, hours to a day |
| Maintenance | Every 6 to 12 months | Every 6 to 12 months | Every few months |
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