Treatment guide · Skin Boosters

Polynucleotide (PN) Injections in Seoul

DNA-fragment skin boosters that help repair thin, damaged or scarred skin over a few sessions.

Ask the clinic for: PN 주사 (폴리뉴클레오티드 주사)

Polynucleotide (PN) Injections treatment at a skin clinic in Seoul

Quick answer

Polynucleotide (PN) injections place purified DNA fragments, usually from salmon or trout, into the skin to support repair, elasticity and hydration. In Seoul they typically cost about ₩150,000–₩500,000 per session, take 20–30 minutes, and leave small bumps for 1–2 days. Results show after 2–4 weeks and last about 4–6 months after a course.

Estimated cost in Seoul

₩150,000–₩500,000

Treatment time

20–30 minutes

Downtime

1–2 days of small bumps

Results show

2–4 weeks

Results last

4–6 months

Sessions

3 sessions, 2–4 weeks apart

Polynucleotide (PN) Injections explained

PN injections are a group of skin boosters made from polynucleotides, which are purified DNA fragments. Rejuran is the best-known Korean brand, and there are many other Korean and Italian brands. They are used for skin quality, fine lines, acne scars and the under-eye area.


How Polynucleotide (PN) Injections works

The PN gel is injected into the dermis as many small drops. Polynucleotides hold water and are thought to support fibroblasts and calm inflammation, which helps the skin repair itself. Over weeks, skin can look thicker, smoother and more even. Some clinics also apply PN after microneedling or laser.


Who Polynucleotide (PN) Injections is for

  • Thin, sensitive or damaged skin
  • Fine lines and loss of elasticity
  • Shallow acne scars and enlarged pores
  • Under-eye crepiness
  • Recovery after laser treatments


Who should avoid Polynucleotide (PN) Injections

  • People with a fish allergy
  • Pregnant or breastfeeding women
  • Active infection, acne flares or rash at the site
  • Anyone wanting volume or lifting


What happens at the appointment

  1. Consultation and choice of brand and area
  2. Cleansing and numbing cream for 20–40 minutes
  3. Small injections by hand or multi-needle device
  4. Soothing mask or cool pack
  5. Aftercare and session scheduling


Aftercare and flying home

  • Avoid makeup for 12–24 hours
  • Avoid saunas, alcohol and hard exercise for 1–2 days
  • Do not rub or massage the area for a few days
  • Use gentle skincare and sunscreen


Side effects and risks

  • Small bumps for 1–2 days
  • Redness and pinpoint bruises
  • Swelling, especially under the eyes
  • Rarely, allergic reaction or infection


How much does Polynucleotide (PN) Injections cost in Seoul?

₩150,000–₩500,000 (about US$110–375) — Price in Seoul depends on the brand (Korean brands are cheaper than imported ones), the amount in cc and the area. Under-eye and full-face treatments are priced differently. Prices are estimates and change with promotions.


Why get Polynucleotide (PN) Injections in Korea?

PN boosters are among the most common skin treatments in Seoul, and several are made by Korean companies. This means wide choice, experienced injectors and lower prices than in many countries.

Prices are estimates gathered for Seoul clinics and change with brand, dose and promotions — confirm a quote with the clinic before booking. This page is general information, not medical advice; a doctor will assess whether a treatment suits you at consultation.

Updated October 2026

Frequently asked questions


How much do PN injections cost in Seoul?

PN injections usually cost about ₩150,000–₩500,000 per session in Seoul. The brand and amount used make the biggest difference.


Do PN injections hurt?

They sting more than some boosters because of the many small injections. Numbing cream is applied for 20–40 minutes first.


How many PN sessions do I need?

Most people need about 3 sessions 2–4 weeks apart. Results usually last 4–6 months.


Can I fly after PN injections?

Yes, flying is fine. Small bumps may stay visible for 1–2 days.


Are PN injections safe?

They are generally low risk when done by a doctor. Tell the clinic about any fish allergy, as most PN products come from fish.


Is PN the same as Rejuran?

Rejuran is one brand of PN injection. Other brands use similar polynucleotides but may differ in concentration and price.

Where to get it in Seoul

Foreigner-friendly clinics cluster around Gangnam, Sinsa–Apgujeong–Cheongdam and Myeongdong. Tap a number to zoom in, then tap a pin to ask the clinic on WhatsApp whether they offer this treatment and for a quote.

Pins show each clinic's neighbourhood or nearest station, not the exact door. Not every clinic offers every treatment — ask before you go.

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