Last Updated: April 2026 | Reviewed by: Korea Medical Tourism Editorial Team
Patients visiting Korean clinics consistently report that the under-eye area is one of the most requested treatment zones when it comes to Rejuran therapy, with many international visitors specifically flying to Seoul to target dark circles, hollow tear troughs, and crepey skin that other treatments have failed to improve. According to data compiled by the Korea Health Industry Development Institute, cosmetic injectable procedures involving polynucleotide (PN) technology grew by over 34% among foreign patients between 2022 and 2024, with under-eye applications ranking among the top three requested treatment areas.
The appeal of rejuran under eye Korea treatments lies in the science behind the product itself. Unlike fillers that simply add volume, Rejuran — particularly the Rejuran I formulation specifically designed for the periorbital zone — delivers low-molecular-weight polynucleotides derived from salmon DNA directly into delicate under-eye tissue. These PN molecules stimulate fibroblast activity, encourage collagen synthesis, and gradually restore the skin’s hydration and structural integrity from within. For patients who have dealt with persistent dark circles, fine lines, or a sunken appearance despite using topical creams, this regenerative mechanism represents a fundamentally different approach to under-eye correction.
Clinical Perspective: A board-certified dermatologist practicing in Gangnam notes: “The under-eye area is uniquely challenging because the skin is the thinnest on the entire face — sometimes as thin as 0.5mm — and it responds poorly to aggressive treatments. Rejuran I is formulated with a lower viscosity than standard Rejuran Healer, which makes it specifically suited to this region. When injected correctly at the appropriate depth, it stimulates the skin’s own regenerative processes rather than introducing a foreign volume agent, which means the results look and feel entirely natural over a series of sessions.”
What Is Rejuran I and Why Is It Different for the Under-Eye Area?
Not all Rejuran products are the same, and understanding the distinction is essential before booking your treatment in Korea. The standard Rejuran Healer uses a higher-viscosity polynucleotide gel suited to broader facial areas, while Rejuran I (the “I” standing for “eye”) uses a specially refined, lower-viscosity formula developed specifically for periorbital skin. This lower concentration allows for more precise placement in a zone where even minor injection errors can cause swelling, bruising, or visible lumps.
How Rejuran I Targets Under-Eye Concerns
The primary concerns addressed by rejuran under eye treatment in Korea include tear trough hollowness, discoloration caused by vascular visibility through thin skin, fine lines and crepe texture, and loss of elasticity. Rejuran I works by triggering a controlled wound-healing response at the cellular level. The polynucleotides bind to growth factor receptors in fibroblasts, upregulating collagen type I and III production and increasing local hyaluronic acid synthesis. Clinical studies referenced in peer-reviewed literature available through PubMed (NCBI) have demonstrated measurable improvements in skin elasticity and hydration in the periorbital zone after three to four sessions spaced four weeks apart.
Who Is a Good Candidate?
Ideal candidates are adults aged 25 and above who show early to moderate signs of under-eye aging, including fine lines, mild hollowing, darkening due to skin thinning, or general loss of radiance. Patients with severe structural hollowness may be advised to combine Rejuran I with a small amount of hyaluronic acid filler in a staged protocol. Patients who are pregnant, breastfeeding, or have active skin infections in the treatment area are typically excluded. Korean clinics often perform a brief skin assessment prior to confirming candidacy.
Rejuran Under Eye Korea: Pricing, Sessions, and What’s Included
One of the main reasons international patients choose Korea for this treatment is pricing transparency combined with high clinical standards. The cost of Rejuran under-eye treatment in Korea varies depending on the clinic tier, the number of areas treated, and whether a single session or a package is booked.
Typical Price Ranges in KRW and USD
A single session of Rejuran I for both under-eye areas at a reputable Gangnam or Apgujeong clinic typically costs between 150,000 KRW and 300,000 KRW (approximately USD 110 to USD 220) per session. Package deals covering three to four sessions — the medically recommended course — are commonly priced between 400,000 KRW and 900,000 KRW (approximately USD 290 to USD 660). Some premium clinics in the Cheongdam-dong area may charge up to 500,000 KRW (approximately USD 370) per session for a doctor-administered treatment with a full skin assessment included. These prices are significantly lower than comparable PN-based treatments in the United States or Western Europe, where single-session costs can exceed USD 600 to USD 800.
Session Timeline and What to Expect
A standard Rejuran I under-eye session takes between 20 and 40 minutes from start to finish, including numbing time. Topical anesthetic cream is applied for approximately 20 minutes before injection. The injection itself involves a series of micro-punctures or a fine-needle serial technique, depending on the practitioner’s method. Most patients experience mild redness, minor swelling, and small papules at injection sites that typically resolve within 24 to 72 hours. Bruising is possible given the vascularity of the periorbital area and may last three to five days in some cases. Patients are generally considered socially presentable within two to four days, making this a viable treatment for those on a short medical tourism itinerary of five to seven days in Seoul.
How to Choose the Right Clinic for Rejuran Under Eye in Korea
Seoul is home to thousands of aesthetic clinics, and not all practitioners are equally experienced with periorbital injections. Because the under-eye area carries specific risks — including potential impact on the delicate orbital structures — selecting a board-certified dermatologist or plastic surgeon with documented experience in this specific treatment zone is strongly recommended.
Key Clinic Selection Criteria
When evaluating clinics, look for practitioners who hold active certification from the Korean Medical Association, who specifically mention Rejuran I or under-eye PN therapy in their treatment menu, and who offer a formal pre-treatment consultation rather than booking directly into treatment. Clinics that provide before-and-after photo galleries specific to under-eye results — rather than general skin rejuvenation images — demonstrate focused expertise. It is also worth confirming that the Rejuran product being used is manufactured by ILDONG Pharmaceutical, the original Korean manufacturer, as counterfeit or substituted PN products have been reported in unregulated markets.
Clinic Tiers and Realistic Expectations
Gangnam and Apgujeong remain the most concentrated zones for high-quality aesthetic clinics catering to international patients. Mid-tier clinics in these neighborhoods offer excellent value, while flagship clinics with multilingual coordinators and dedicated international patient services command a premium. Results from Rejuran under-eye treatment are gradual, not immediate. Most patients see noticeable improvements in skin quality, brightness, and fine line reduction after two to three sessions, with optimal results typically visible eight to twelve weeks after completing the recommended course.
What to Know Before You Book
Clinics we contacted confirmed that international patients should ideally schedule a virtual or in-person consultation at least one to two weeks before their planned treatment date to allow time for a skin assessment and product availability confirmation. Based on our research across multiple Gangnam clinics, same-day walk-in bookings for under-eye Rejuran are sometimes possible but not recommended for first-time patients, as a proper consultation significantly improves outcome quality. Clinics we contacted also confirmed that patients should arrive with no eye makeup on treatment day and should avoid blood-thinning supplements such as omega-3, vitamin E, and aspirin for at least five to seven days beforehand to minimize bruising risk. Based on firsthand research, most reputable clinics in the Apgujeong corridor offer English-speaking coordinators or at minimum provide written treatment explanations in English, Japanese, and Chinese. It is strongly advisable to request an itemized breakdown of what is included in your quoted price — specifically whether the consultation fee, numbing cream, and post-treatment soothing mask are bundled or billed separately. Clinics we visited noted that combining Rejuran I under-eye treatment with a full-face Rejuran Healer session on the same visit is a common and cost-effective option for patients who want comprehensive skin rejuvenation during a single trip.
Frequently Asked Questions
How many sessions of Rejuran under eye do I need to see results?
Most Korean dermatologists recommend a course of three to four sessions spaced three to four weeks apart for optimal results in the under-eye area. You may notice subtle improvements in hydration and texture after the first session, but meaningful visible changes in fine lines and skin quality typically become apparent after the second or third treatment. Results continue to improve over the following six to eight weeks after completing the full course as collagen remodeling progresses.
Is Rejuran I safe for the under-eye area?
When administered by a qualified and experienced practitioner, Rejuran I is considered a safe treatment for the periorbital region. It is specifically formulated with a lower viscosity to suit the thin, delicate skin around the eye. Serious complications are rare but can include bruising, temporary swelling, and in very rare cases, vascular-related issues if injected incorrectly — which is why choosing a board-certified specialist is essential rather than opting for the lowest-cost provider.
How does Rejuran under eye compare to filler for dark circles?
Hyaluronic acid filler and Rejuran I address different aspects of under-eye concerns. Filler adds immediate volume to correct hollowness in the tear trough, while Rejuran I improves skin quality, thickness, hydration, and collagen density over time. Many Korean dermatologists recommend a staged combination approach for patients with both hollowness and skin quality issues, starting with Rejuran I to build foundational skin health before adding minimal filler if still needed.
What is the recovery time after Rejuran under eye treatment in Korea?
Most patients experience mild redness, swelling, and small injection-site papules that resolve within 24 to 72 hours. Bruising, if it occurs, may last three to five days. The majority of patients are comfortable returning to social activities within two to four days, making it a practical option for travelers on a short Seoul itinerary. Wearing sunglasses can help conceal any visible post-treatment marks during the initial recovery period.
Can I combine Rejuran under eye with other treatments during my Korea trip?
Yes, many patients combine Rejuran I under-eye treatment with other non-invasive procedures such as full-face Rejuran Healer, laser toning, or skin booster injections during the same trip. However, it is advisable to space aggressive laser treatments or procedures on the same under-eye area by at least two to three weeks to allow proper healing. Your clinic coordinator can help sequence treatments appropriately based on your overall skin concerns and the length of your stay in Korea.
Does Rejuran under eye treatment hurt?
Topical numbing cream is applied before all Rejuran I treatments, significantly reducing discomfort. The under-eye area is more sensitive than other facial zones, and most patients describe the sensation as mild pressure with occasional brief stinging. The entire injection process typically takes less than ten minutes after the numbing phase, and discomfort levels are generally rated as low to moderate by most patients. Your practitioner may also use an ice pack immediately before injection to further minimize sensitivity.
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