
Hello. This is Dr. O Clinic.
Rejuran is a popular treatment that promotes collagen regeneration in the skin and improves skin elasticity.
However, the duration of its effects can vary depending on how you care for your skin after the procedure.
In this post, we will introduce ways to maximize the effects of a Rejuran treatment.

First, let’s learn about Rejuran.
Rejuran is an injection treatment that uses PN (polynucleotide, salmon DNA extract) to promote collagen production in the skin and regenerate damaged skin.

Main effects of Rejuran
✔ Improved skin elasticity & reduced fine lines
✔ Strengthened skin barrier & increased moisture retention
✔ Improved skin tone & skin texture
Rejuran is recommended for
✔ Cases where skin elasticity has declined due to aging
✔ Cases that need recovery due to frequent procedures or skin damage
✔ Those who want to improve dry, rough skin
✔ If you want to maximize the effects after a Rejuran treatment?
If you want to maximize the effects after a Rejuran treatment?
- Moisture supply is essential!
After a Rejuran treatment, the skin needs a more hydrated environment.
Please drink enough water and use moisturizing cream, etc. to keep the skin hydrated from within.
- Sunscreen is not a choice, but a necessity
Because the skin is more sensitive immediately after the procedure, it is good to apply sunscreen carefully (SPF 30–50).
- Stay away from alcohol and smoking
Alcohol and smoking can interfere with skin regeneration and may trigger inflammatory reactions.
It is best to avoid them for at least 2 weeks after the procedure.
- Avoid irritating skincare
Strong peeling, scrubs, and high-temperature saunas can irritate the skin, so please refrain from them.
Please cleanse with lukewarm water and gently care for your skin with a mild cleanser.
- Rejuran treatment: Why experienced medical staff matter
Rejuran treatment is not simply injecting into the skin; it requires delicate technique that accurately identifies the facial structure and skin condition and adjusts the appropriate depth and amount.

▲ Treatment by Dr. Oh Jung-min, head doctor of Dr. O Clinic
Why Rejuran should be performed by skilled medical staff
-
Personalized treatment is possible - Apply the optimal method according to skin type and concerns
-
Balanced injection technique - Effective collagen regeneration and maintenance of natural results
-
Minimized side effects - Reduce side effects such as bruising and swelling, and speed up recovery
The key to Rejuran treatment can vary depending on an individual's skin condition, and accurate and delicate injection is essential.
PN (polynucleotide), the main ingredient in Rejuran, must be accurately delivered to the dermis layer of the skin to expect better skin regeneration effects.
The dermis is a sensitive layer located 1–3 mm below the skin surface, so proper injection technique is essential.
If injected too shallowly, the ingredients may leak out to the skin surface, and if injected too deeply, they may be delivered to the fat layer or muscle layer, reducing the effect. Therefore, careful injection technique is a key factor in Rejuran treatment.
Dr. Oh Jung-min, the head doctor at Dr. O Clinic, provides personalized Rejuran treatments based on extensive experience and research by closely analyzing each patient's skin condition.
Through 1:1 customized treatment performed directly by the head doctor, we hope you experience safe and satisfying skin improvement. We will always put our customers’ skin health first.
Yeongdeungpo Rejuran treatment
Exit 3 of Mullae Station, Dr. O Clinic
Appointment inquiries 02) 2632-5553