First published: 2019-12-03 / Last reviewed: 2026-05-28
This is a guide to skin booster injections compiled by Dr. Choi Byeong-geun of SHINE U Clinic Konkuk (3 minutes walk from Konkuk Univ. Station Exit 1).
Even with good cosmetics, not all of it is absorbed deep into the skin, so many people consider dermatological procedures at a certain point. This article focuses on frequently asked questions about Rejuran Healer, commonly known as "salmon injection."
What is Rejuran Healer made of?
Rejuran is a product made from polynucleotide (PN) extracted from salmon DNA. This ingredient is known to help with skin regeneration, and is used with the aim of regenerating aged or damaged skin.
What effects can be expected?
The generally reported expected effects of Rejuran Healer are as follows:
- Improvement in volume and elasticity
- Improvement in fine wrinkles
- Improvement in skin tone
- Skin regeneration
- Sebum reduction
The degree of effect and the timing of feeling it may vary from person to person.
Is post-procedure swelling normal?
Immediately after the procedure, you may experience a bumpy sensation at the injection site. This is a normal process where it is absorbed and smoothed out over time. However, if you have an important appointment, it is more comfortable to schedule the procedure with some leeway.
What about bruising and swelling?
Rejuran is performed using small needles to minimize bruising and swelling. As it is an injection procedure, it is advisable to avoid alcohol and smoking for about a week after the procedure to aid recovery.
What is the treatment cycle?
Generally, 3 sessions are often recommended at intervals of 2-3 weeks. Some people feel their skin becoming firmer as the sessions progress, but the appropriate cycle and number of sessions vary depending on individual conditions, so we recommend checking first through chat consultation.
In summary
Rejuran Healer is one of the frequently sought-after procedures for skin regeneration, but its suitability and effects vary from person to person. Please clarify any questions through chat consultation, and confirm the direction suitable for your skin condition during a consultation with Dr. Choi Byeong-geun.
Authored by: Dr. Choi Byeong-geun (Chief Director of SHINE U Clinic Konkuk / Member of the Korean Society for Laser Dermatology and Hair, Korean Society for Aesthetic Plastic Surgery and Laser Medicine, Korean Filler Society, etc.) Last reviewed: 2026-05-28
This article provides general information about procedures and does not replace diagnosis or treatment. The suitability and results of procedures vary from person to person.