Rejuran healer benefits after sun-stressed skin: a Seoul dermatologist

What are the Rejuran healer benefits, in plain terms?

Hello, I'm Dr. Won Woo Choi, a board-certified dermatologist (M.D., Ph.D.) and Chief Director at WELLS Clinic in Apgujeong, Seoul. I completed my residency and board certification in dermatology at Seoul National University Hospital, where I am now an adjunct professor. Patients often ask me what the real Rejuran healer benefits are once the marketing is stripped away.

Here is the direct answer. Rejuran is a polynucleotide (PN) skin booster that supports the skin's own regeneration. It adds elasticity in the epidermis and dermis, smooths fine lines and texture, and improves hydration. It works with your skin's repair process rather than filling or freezing anything.

That makes it a good fit for skin that is tired, dry or stressed, and less of a fit if your main concern is deep sagging. Below I explain how I use it, and why I often pair it with a tightening treatment.

What I told Dong-A Edu about skin after a summer holiday

In September 2025 I spoke with Dong-A Edu (동아일보 교육) about recovering skin after a summer holiday. Strong sun and UV, chlorine from pools and salt from the sea leave skin worn out and slightly damaged, even after the tan fades.

My advice then was that self-care alone is rarely enough to bring back firmness, hydration and regeneration at once. Dermatologists, me included, generally suggest working on all three before the dry autumn season arrives.

I also said that combining two treatments that work on different things is often more efficient than relying on one. A booster for regeneration and hydration, plus an energy-based treatment for firmness, was the pairing the article focused on.

How does Rejuran work on tired, damaged skin?

Rejuran is injected into the skin so its polynucleotide reaches where repair happens. In the interview I described it as activating the skin cells' own regenerative ability, rather than changing the skin with an outside material.

At WELLS we use Rejuran HB+, a salmon-derived PN with added hyaluronic acid for extra hydration. It also contains lidocaine, which cut post-injection pain by an average of 53% on the VAS scale compared with Rejuran Healer.

Why the lidocaine version matters for delicate areas

Fine lines around the eyes, the mouth and on the neck are where people most want help and where they feel injections most. A formula with a built-in anesthetic makes those areas easier to treat, which is one of the practical Rejuran healer benefits patients notice.

• Regeneration: PN supports the skin's own repair
• Elasticity: improves in the epidermis and dermis
• Texture and fine lines: smoother over a course
• Hydration: improved, and boosted further by hyaluronic acid in HB+

For a deeper look at the original formula, see our post on Rejuran Healer.

Who are the Rejuran healer benefits most useful for?

In my clinic the patients who get the most from a polynucleotide booster share a pattern. Their skin looks dull and feels dry, makeup sits poorly on it, and fine lines show more than they used to, but the contour of the face is still mostly where it was.

• Skin left dry and rough after sun, wind or travel
• Fine lines around the eyes and cheeks that creams have not touched
• Texture that looks uneven under daylight
• People who want a gradual, natural change rather than a sudden one

It is less useful as the only treatment when the jawline has softened or the cheeks have dropped. In that case the booster still helps the surface, but I would not promise it will change the shape. That is a job for a tightening or lifting treatment, and I will say so at consultation.

I also ask about recent procedures, skin conditions and how sensitive your skin is. A booster is a medical injection, and side effects are possible, so the decision is made after I have examined your skin in person.

Why pair a skin booster with a tightening device?

Rejuran improves the quality of the skin, but it does not lift a loosening contour on its own. In the Dong-A Edu article I discussed pairing it with an ultra-high-frequency energy device that used two handpieces of different depths and cooling to ease discomfort, for firmness along the face line.

The principle has not changed: the booster works on regeneration and hydration, the device works on firmness. Which device is right for you today is decided at consultation. On our menu, Winergy Skin Tightening combines RF and low-frequency EMS for same-day tightening with zero downtime, and Genius RF Microneedling delivers energy at the depth where collagen is made.

What should be checked when two treatments are combined?

More treatments in one plan means more decisions. The energy level has to match your skin type, the order of the treatments has to make sense, and the interval and number of sessions have to fit your skin and your trip.

That is why I told the newspaper that a combination should be designed one-to-one by a dermatologist. At WELLS, a board-certified dermatologist does your consultation, diagnosis and treatment, and every injection uses genuine products.

• Energy adjusted to your skin type and thickness
• The type of anti-aging treatment chosen for your concern
• Treatment period and number of sessions planned in advance
• Delicate areas such as the eyes and mouth handled with extra care

How many sessions, what does it cost and how does it fit a trip?

For Rejuran HB+, four sessions at 2–3 week intervals are recommended. Many of the Rejuran healer benefits build over a course rather than appearing after one visit, so we plan around how often you can come to Seoul.

What should you expect in the days after? Small marks at the injection points are common with any skin booster, and they usually settle on their own. You leave with the dermatologist's aftercare instructions, and you can reach us on WhatsApp afterwards if anything worries you. I prefer patients not to schedule the treatment on the morning of a flight, so tell us your dates first.

The price for Rejuran HB+ is confirmed at your consultation, as are the prices for Winergy and Genius RF. All WELLS prices are in Korean won and exclude 10% VAT. Tell us your flight dates and the dermatologist will advise on timing.

Planning a Rejuran visit at WELLS in Apgujeong

WELLS is a five-minute walk from Apgujeong Station Exit 3 on Line 3. Consultations are available in English, and you can plan everything on WhatsApp before you fly. You can read more about my background on my doctor page.

If you are comparing booster options more broadly, our Korean skin booster guide is a good next read.

Results and recovery vary by individual. Every treatment carries possible side effects, which are explained at the consultation. Prices are in Korean won, excluding 10% VAT, and confirmed at your consultation. This article is general information from the clinic, not a diagnosis.

Written by

Dr. Won Woo Choi

Medical Director · M.D., Ph.D. · WELLS Clinic, Apgujeong

• Board-certified dermatologist in Korea; trained at Seoul National University Hospital
• Dermatology residency, Seoul National University Hospital; board certification in dermatology in Korea
• Ph.D. in Dermatology, Seoul National University
• Former clinical instructor, Seoul National University Hospital
• Adjunct professor, Department of Dermatology, Seoul National University Hospital

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