Rejuran Skin Booster in Cheongdam & Apgujeong, Seoul

What is Rejuran?

Rejuran (리쥬란) is one of the best-known Korean skin boosters. Its active ingredient is polynucleotide (PN) — purified DNA fragments, commonly sourced from salmon — delivered into the dermis through many tiny injections. Polynucleotides are studied for their role in supporting the skin's own repair environment, and in clinical practice Rejuran is used to improve the look of skin quality: texture, fine crepiness, resilience and the tired dullness that comes with stress, sun and time.

Rejuran is not a filler. It does not add structural volume or lift sagging tissue. Its role is to improve the skin itself — the canvas on which lifting and contouring results are seen. That is why it pairs naturally with treatments that work on deeper layers.

How Doje Clinic uses Rejuran

At Doje Clinic, Rejuran sits in the hydration and soothing line of Skin & Energy care, and the clinic's own wording is that it is added selectively. Many people arrive asking for a skin booster when their main concern is actually sagging or volume loss; in that case, a booster alone will not deliver what they hope for. Others have good structure but thin, reactive or rough skin, and for them Rejuran can be the most useful single step.

Dr. Byun Jeik decides in a 1:1 consultation whether Rejuran, a collagen booster such as GOURI, an ECM booster such as Re2O, or exosome care is the right match for your skin. Mark-View 3D skin data can help by showing texture, pores and pigment objectively rather than relying only on the mirror.

Who it suits — and who it doesn't

• Suits: thin, fragile-feeling skin, fine crepey lines and uneven texture.
• Suits: skin that feels depleted after energy devices, sun exposure or travel.
• Suits: people who want gradual improvement in quality rather than a visible change in shape.
• Not the right tool: significant sagging or deep hollows — these need lifting or filler.
• Postpone or discuss: fish allergy, pregnancy or breastfeeding, active acne flare or infection in the area.

What to expect step by step

1. Consultation: Dr. Byun reviews skin quality, sensitivity and your timeline.
2. Plan: Rejuran alone or alongside lifting, toning or recovery care; the number of sessions is suggested.
3. Preparation: cleansing and topical numbing.
4. Treatment: many tiny injections across the planned area; the delivery method is chosen to suit your skin.
5. Soothing: supportive care such as LED or calming care where included in the plan.

Recovery and aftercare

Immediately afterwards, small raised bumps at the injection points are normal and usually flatten within about a day. Pinpoint bruising is possible. Avoid make-up for the rest of the day if you can, and skip saunas, intense workouts and alcohol for around 24–48 hours. Keep skin well moisturised and use sunscreen daily. The skin booster aftercare guide has the full checklist.

When will I see results?

Rejuran works gradually. Some people notice a fresher feel within a couple of weeks, with further improvement over the following weeks as a series progresses. Results and the number of sessions vary with age, skin condition and lifestyle. Maintenance is planned by reviewing your skin, not by a fixed calendar.

Cost

Rejuran is quoted after a 1:1 consultation, because cost depends on the area, the number of sessions and whether it forms part of a combined plan. Korean aesthetic treatments are non-covered (비급여) and fees are set per plan; ask for a written quote.

Frequently asked questions

What does Rejuran do?

Rejuran is a polynucleotide skin booster used to improve skin quality, texture and resilience. It does not add volume or lift sagging.

Is Rejuran painful?

It involves many small injections, so some stinging is expected. Topical numbing makes it tolerable for most people.

How many Rejuran sessions do I need?

Often a short series a few weeks apart, but the number depends on your skin and goals and is suggested at consultation.

Can Rejuran be combined with lifting?

Yes. Lifting addresses structure while Rejuran addresses skin quality, so they can complement each other when both are needed.

Why does Doje add Rejuran only selectively?

Because it helps skin condition, not sagging or volume. Doje uses it when skin quality is a genuine part of the concern.

Related at Doje Clinic

• Eye Rejuran
• Skin boosters overview
• Rejuran vs exosome
• Rejuran vs GOURI
• Rejuran vs Re2O
• Thin, fragile skin
• Dry, dehydrated skin

Medical information on this page is general education, not a diagnosis. Suitability, risks and the final plan are confirmed in a 1:1 consultation with Dr. Byun Jeik. Last updated 17 October 2026.