Last Updated: April 2026 | Reviewed by: Korea Medical Tourism Editorial Team
Patients visiting Korean clinics consistently report that a single Rejuran session rarely delivers the full regenerative results they were expecting — and that’s entirely by design. Across Gangnam and Apgujeong, the standard recommendation is a structured Rejuran course treatment, typically spanning three to four sessions delivered two to four weeks apart, which allows polynucleotide (PN) molecules to progressively stimulate collagen remodeling and cellular repair. According to data compiled by the Korea Health Industry Development Institute, injectable skin regeneration treatments including Rejuran are among the top five most requested aesthetic procedures by international patients visiting Korea, with demand rising over 30% between 2022 and 2024.
A Rejuran course treatment is not simply a repeat injection — it is a clinically sequenced protocol designed to build cumulative skin improvement over time. Each session layers on the biological effects of the last, helping the skin restore its own repair mechanisms rather than relying on external fillers or stimulants. For international patients flying into Seoul specifically for aesthetic treatments, understanding exactly how this course structure works, how much it costs, and what results are realistic is essential before committing to a treatment plan.
Clinical Perspective: A board-certified dermatologist practicing in Gangnam notes: “We almost never recommend a single Rejuran injection as a standalone treatment for patients seeking meaningful skin texture improvement. The polynucleotide mechanism requires time and repeated stimulation to activate sustained fibroblast activity. A properly structured course of three to four sessions is where patients consistently see the skin density and hydration improvements that match their expectations.”
What Is a Rejuran Course Treatment?
Rejuran is an injectable skin regeneration treatment derived from salmon-origin polynucleotides, which have a well-documented affinity for human skin tissue. Unlike hyaluronic acid fillers that add volume mechanically, Rejuran works by biologically communicating with skin cells to upregulate repair processes, increase collagen synthesis, and restore natural moisture retention. A course treatment refers to a formally scheduled series of these injections, typically three to four sessions, administered at regular intervals to maximize cumulative regenerative effect.
How the Course Protocol Is Structured
Clinics we contacted across Seoul confirmed that the most widely used Rejuran course protocol consists of three sessions spaced three to four weeks apart, with some clinics offering four-session premium packages. The first session primes the skin’s response, the second session builds on early collagen activity, and by the third session patients typically report visible improvements in skin firmness, texture evenness, and reduction in fine lines. Some clinics also offer maintenance boosters every three to six months after completing an initial course. The full course from first injection to final session spans approximately eight to twelve weeks, making it highly compatible with a stay-and-return model for international patients or a single extended medical tourism trip.
Types of Rejuran Used in a Course
Not all Rejuran products are used interchangeably within a course. The standard product, Rejuran Healer (PN-based), is the most commonly used across a full course. Rejuran I, a lower-viscosity formulation, may be incorporated for targeted periorbital treatment within the same course. Some clinics use Rejuran S, designed specifically for acne scar tissue, as part of a hybrid course targeting both overall skin quality and localized scarring. Your treating dermatologist will typically recommend one or a combination of these based on your skin assessment at consultation.
Rejuran Course Treatment Costs in Korea
One of the primary reasons international patients choose Korea for a Rejuran course treatment is cost. Korean clinics offer significantly more competitive pricing than clinics in Singapore, Hong Kong, or Western countries, while maintaining rigorous standards of care under the oversight of the American Academy of Dermatology-equivalent Korean Dermatological Association standards and national health regulations.
Price Ranges by Package Type
A single Rejuran Healer session at a reputable Gangnam clinic typically costs between ₩150,000 and ₩300,000 (approximately $110–$220 USD) depending on the clinic tier and the volume of product used. A standard three-session course package is generally priced between ₩400,000 and ₩750,000 (approximately $295–$555 USD), representing a meaningful discount compared to booking three individual sessions. Four-session premium course packages, sometimes bundled with complementary treatments like microneedling or LED therapy, range from ₩700,000 to ₩1,200,000 (approximately $520–$890 USD). High-prestige clinics in Cheongdam-dong or Apgujeong may charge premium rates above these ranges, particularly for English-speaking coordination services and imported product variants.
What Affects the Final Price
The final cost of a Rejuran course treatment depends on several variables: the specific Rejuran formulation used, the total volume injected per session, whether combination protocols are included, and the clinic’s location and international service infrastructure. Clinics that provide dedicated medical coordinators for foreign patients, English-language consultation services, and translation support typically price their packages at the higher end of the range. Always request an itemized quote before confirming a booking, and confirm whether the quoted price includes the topical numbing cream application and post-treatment soothing treatments that most reputable clinics include as standard.
What to Expect During and After Each Session
Each session in a Rejuran course treatment follows a consistent protocol. Topical anesthetic cream is applied to the treatment area approximately 20 to 30 minutes before injection. The Rejuran product is then administered via multiple microinjections using a fine needle across the target zones — most commonly the full face, under-eye area, or neck depending on the treatment plan. Each session takes approximately 20 to 40 minutes from injection start to finish, and most patients leave the clinic within 60 to 90 minutes total including preparation and post-treatment care.
Recovery Timeline Per Session
Immediately after each session, minor redness, small raised injection papules, and mild swelling are normal and expected. These typically resolve within 24 to 48 hours. Most patients are comfortable returning to social activities within one to two days of each session. Bruising can occur but is generally minimal when performed by an experienced injector. Sun protection is strongly advised in the days following each injection. By the third or fourth session in a Rejuran course treatment, many patients report that individual session recovery feels faster as the skin becomes progressively more resilient and well-hydrated.
Visible Results Timeline Across the Full Course
Visible results from a Rejuran course treatment are cumulative rather than immediate. Most patients notice subtle hydration improvement after the first session, more perceptible texture refinement by the second session, and meaningful skin firmness, reduction in fine lines, and improved tone evenness by the completion of the third session. Full collagen remodeling effects continue to develop for four to eight weeks after the final session in the course. Patients with more significant skin laxity or textural concerns may benefit from a second course starting three to six months after the first.
What to Know Before You Book
Based on our research across multiple Gangnam clinics, here are the most important practical considerations for international patients planning a Rejuran course treatment in Korea. First, confirm that the clinic stocks genuine ILDONG Pharmaceutical-manufactured Rejuran products, as counterfeit or gray-market PN injectables have been flagged in some lower-tier clinics. Clinics we contacted confirmed that legitimate products arrive with verifiable batch documentation that can be shown to patients upon request. Second, plan your trip timeline around the course schedule — if you can only make one trip, discuss a compressed course schedule with your clinic, as some offer sessions spaced two weeks apart for international patients. Third, always schedule a consultation session before your first injection, as reputable clinics will conduct a skin assessment, review your medical history, and tailor the course plan accordingly. Fourth, ask specifically about combination add-ons and whether they are included or charged separately — some clinics bundle LED light therapy or growth factor serums into the course price while others itemize these separately. Fifth, check the clinic’s international patient coordinator availability before booking, particularly if you do not speak Korean, as seamless communication before, during, and after each session is critical for a safe treatment experience.
Frequently Asked Questions
How many sessions are in a standard Rejuran course treatment?
Most clinics in Korea recommend a course of three to four sessions for optimal results, with sessions spaced two to four weeks apart. The exact number may vary based on your skin condition, age, and specific treatment goals discussed during your initial consultation. Some patients with mild concerns complete a three-session course while those targeting significant skin aging or scarring may be recommended a four-session protocol.
Can international patients complete a full Rejuran course in one trip?
Yes, this is possible with advance planning. Clinics we contacted confirmed they regularly accommodate international patients who schedule compressed course timelines, with sessions two weeks apart rather than the standard three to four weeks. This allows a full three-session course to be completed within approximately a five-week stay in Korea, which many medical tourists combine with other aesthetic treatments.
Is a Rejuran course treatment painful?
Discomfort is generally minimal when topical numbing cream is applied properly before each session, which is standard practice at reputable Korean clinics. Most patients describe the sensation as mild pressure or a slight stinging feeling during injection. By the second and third sessions, many patients report that they feel more comfortable as they know what to expect and the skin may respond with less sensitivity.
How long do the results of a Rejuran course treatment last?
Results from a completed Rejuran course treatment typically last six to twelve months before a maintenance booster session is recommended. The collagen and skin matrix improvements built up over the course do not disappear suddenly — rather, the skin gradually returns toward its pre-treatment baseline over time. Most dermatologists in Korea recommend a single maintenance session every three to six months after an initial course to sustain results long term.
Are there any medical conditions that would prevent me from receiving a Rejuran course?
Patients with known allergies to salmon or fish-derived products should not receive Rejuran, as the polynucleotides are derived from salmon DNA. Active skin infections, autoimmune skin conditions, pregnancy, and breastfeeding are also contraindications. A thorough medical history review at your pre-treatment consultation will identify any contraindications relevant to your situation. Always disclose all medications, supplements, and health conditions to your treating dermatologist before beginning a course.
What is the difference between a Rejuran course and a single booster session?
A single Rejuran booster session is appropriate for patients who have already completed a full course and are maintaining results, or for patients with very mild skin concerns. A full Rejuran course treatment is designed for patients seeking primary skin regeneration benefits — improved texture, reduced fine lines, restored hydration, and enhanced skin density. The cumulative effect of a structured course significantly exceeds what a single session can achieve, which is why first-time patients are consistently recommended to start with a full course rather than a standalone injection.
Related Articles
If you found this guide helpful, explore these related resources for international patients considering Rejuran in Korea:
- Rejuran Healer Price in Korea: What to Expect
- Rejuran Results Timeline: When Will You See Changes?
- Rejuran Procedure for Foreigners in Korea
- Rejuran Korea Complete Treatment Guide
- Best Rejuran Price at Seoul Clinics