
2026-04-22 • Patient Resources & Tips
Hello! This is Seye Clinic, embracing all the beauty in the world. If you have received Rejuran Healer in Gangnam but saw no results, the issue often lies in product dilution, improper injection depth, or an incomplete treatment cycle. A full protocol requires 3 sessions spaced 2 to 3 weeks apart using 100% genuine, undiluted Polynucleotide (PN) to achieve lasting skin regeneration.
In our practice at Seye Clinic, we consistently see international patients who visit us feeling disappointed after receiving skin boosters elsewhere. A question that came up three times last week alone was, "I had Rejuran done a month ago, but my skin looks exactly the same. Is Rejuran ineffective?"
Rejuran Healer is a biostimulating skin booster composed of Polynucleotides (PN) extracted from salmon DNA. According to a 2023 study published in the Journal of Cosmetic Dermatology, PN injections significantly improve skin hydration, elasticity, and dermal thickness by stimulating fibroblast activity. It is designed to repair damaged cells from within.

However, the effectiveness heavily depends on how it is administered. When patients report no improvement, we typically find that the product was either not genuine, heavily diluted with saline to reduce pain and cost, or injected at the wrong dermal layer.
When comparing successful Rejuran outcomes with failed ones, we observe three distinct patterns. It is crucial to understand these limitations before booking your session.
• Non-Genuine or Mishandled Products: Due to its high demand, counterfeit or improperly stored Rejuran exists. Using unverified products guarantees poor results and increases the risk of adverse reactions.
• Dilution Practices: Rejuran has a high viscosity, making it notoriously painful to inject. To minimize discomfort and cut costs, some clinics dilute the 2cc syringe with saline or other cheap additives. While this reduces the pain level by perhaps 50%, it also dilutes the PN concentration, rendering the treatment largely ineffective.
• Incomplete Treatment Cycles: Rejuran is not a one-time magic fix. It requires a cumulative approach. We recommend a baseline of 3 sessions spaced 2 to 3 weeks apart. Stopping after just 1 session means the collagen stimulation process is halted prematurely, and results may fade within 1 to 2 months instead of lasting over 6 months.
In our clinical experience, transparency is the most critical factor when choosing a clinic for Rejuran in Seoul. Patients often hesitate due to the infamous pain and the fear of wasting money.
Here is what you should typically observe and expect during a proper Rejuran protocol:
Factor | Genuine Rejuran Protocol | Diluted/Improper Protocol |
|---|---|---|
Product Verification | Opened in front of the patient | Pre-filled syringes brought in |
Pain Level | Moderate to high (viscous fluid) | Low (watered down) |
Downtime (Embossing) | 24 to 48 hours of visible bumps | Disappears in a few hours |
Longevity of Results | 6 to 12 months (after 3 sessions) | 1 to 2 months (if any) |
👉🏻Check out the price for Rejuran

The "embossing" effect—small bumps on the skin immediately after injection—is actually a positive clinical sign. It indicates that the thick, undiluted PN has been successfully placed in the superficial dermis.
Gangnam is the global epicenter of aesthetic dermatology, but navigating the sheer number of clinics can be overwhelming. At Seye Clinic, we prioritize medical integrity over mass-market volume.
As a certified Re2O Key Clinic and an Alltite Research Advisory Hospital, our medical team is deeply involved in the latest advancements in skin boosters and biostimulators. We understand that international patients travel far for these treatments, which is why we strictly adhere to a 100% genuine, non-dilution policy.
One specific detail that only a practitioner at Seye Clinic would emphasize is the precise angle of the needle during manual injection. Our KOL (Key Opinion Leader) specialist doctors use a specific micro-droplet technique that ensures the PN is distributed evenly across the dermal-epidermal junction, maximizing collagen synthesis while minimizing unnecessary bruising.
When you visit Seye Clinic Gangnam, your Rejuran journey begins with a comprehensive skin analysis.
First, during the consultation, a doctor evaluates your skin thickness and concerns to determine if Rejuran is the optimal choice, or if an alternative like CEllRDM or Re2O might be better suited.
Second, we always unbox the Rejuran Healer package right in front of you, verifying the authenticity seal before drawing the product.
Third, to address the pain, we utilize a multi-step numbing process, including premium topical anesthetics and localized cooling systems.
Finally, the doctor manually injects the undiluted Rejuran, ensuring the exact depth required for cellular repair. For our international patients, our English-speaking team ensures you understand every step, including post-care instructions to manage the 1-2 days of embossing downtime.
• Rejuran Healer uses salmon-derived PN to repair skin cells and boost collagen.
• Lack of results is often due to diluted products, fake formulas, or incomplete treatment cycles.
• A proper protocol requires 3 sessions spaced 2-3 weeks apart for results lasting up to a year.
• Genuine Rejuran causes temporary "embossing" (small bumps) for 24-48 hours.
• Seye Clinic guarantees 100% genuine, undiluted Rejuran opened in front of the patient.
Q: Why didn't I see any results after my first Rejuran session?
A: Rejuran works by gradually stimulating your own collagen production. A single session only begins this cellular repair process. According to our clinical protocols, visible improvements in skin texture and hydration typically peak after completing a full cycle of 3 sessions spaced 2 to 3 weeks apart.
Q: Is it true that Rejuran is extremely painful?
A: Yes, genuine, undiluted Rejuran has a high viscosity, which causes a stinging sensation during injection. At Seye Clinic, we use advanced numbing creams and cooling techniques to manage this. If a Rejuran treatment is completely painless, it is highly likely the product was diluted.
Q: How long does the embossing effect last after Rejuran?
A: The embossing effect, which looks like small mosquito bites, is a sign of a successful, undiluted injection into the dermis. In our clinical experience, these bumps typically subside within 24 to 48 hours as the thick PN fluid is absorbed into the surrounding skin tissue.
Q: Can I combine Rejuran with lifting treatments like Ultherapy?
A: Absolutely. Combining Rejuran with energy-based devices is highly effective. We often pair it with Ultherapy or Thermage FLX. The heat from the lifting device tightens the deep tissue, while Rejuran repairs and hydrates the superficial dermis, creating a powerful synergistic anti-aging effect.
Ready to experience the difference? Book a free consultation via WhatsApp (+82-10-3110-9806) or browse our current events and packages. Our English-speaking team is ready to help you plan your visit.
*Disclaimer: This content is for informational purposes only and does not constitute medical advice. Individual results may vary. Please consult with a qualified medical professional before undergoing any aesthetic procedure.
Seye Clinic
10F, 55 Seocho-daero 77-gil, Seocho-gu, Seoul
• Parking available (1h free with treatment)
Phone: +82-507-1345-5928
Email: info@seyeclinic.com
Opening Hours: Weekdays/Evening Clinic 10:30-21:00, Weekends 10:30-19:00 (Last admission: 1 hour before closing)
Copyright © 2026 SEYE CLINIC. All Rights Reserved.
Seye Clinic
10F, 55 Seocho-daero 77-gil, Seocho-gu, Seoul
• Parking available (1h free with treatment)
Representative: Eun Sol Lee
Privacy Officer: Eun Sol Lee
Business Registration Number: 470-03-03420
Phone: +82-507-1345-5928
Email: info@seyeclinic.com
Opening Hours: Weekdays/Evening Clinic 10:30-21:00, Weekends 10:30-19:00 (Last admission: 1 hour before closing)
Copyright © 2026 SEYE CLINIC. All Rights Reserved.