Guide

How does Rejuran Healer work on acne scars?

Rejuran Healer is made of polynucleotides (PN), DNA fragments purified from salmon. When injected into the dermis as many tiny deposits, PN is thought to support the skin's own repair processes, including fibroblast activity and collagen production, and to improve hydration and elasticity.

For acne scars, that means it works on skin quality rather than physically lifting a scar. Over a course of treatments, many patients notice smoother, more resilient skin and softer-looking shallow scars. It is often used alongside procedures that remodel scars more directly. Learn more on the main Rejuran Healer page.

Which acne scars respond to Rejuran Healer?

Rolling scars: Broad, gentle depressions with soft edges. These often respond reasonably well, especially when combined with other treatments.
Shallow boxcar scars: Some softening may occur, though deeper boxcar scars usually need lasers or other procedures.
Ice-pick scars: Narrow, deep scars respond poorly to boosters alone.
Textural roughness and redness: Many patients see improved skin quality after breakouts settle.

An honest diagnosis matters. Most people have a mix of scar types, which is why acne scar plans at Re:berry usually involve more than one approach.

Who is a good candidate?

Rejuran Healer typically suits adults whose active acne is under control and who want gradual improvement in texture with modest downtime. It may also suit people with sensitive skin who cannot tolerate aggressive resurfacing. It is not usually recommended during active, inflamed breakouts, pregnancy or breastfeeding, or for anyone with a fish or salmon allergy. Tell the doctor about blood thinners and any history of keloids.

What to expect during treatment

Consultation: The doctor maps your scar types and decides whether Rejuran fits your plan.
Numbing: Numbing cream is applied for about 30 to 40 minutes, because the many small injections can be uncomfortable.
Injection: The product is placed in small deposits across scarred areas, either by hand or with an injector device.
After: Small raised bumps appear and a soothing product is applied.

Downtime and side effects

Bumps usually flatten within 1 to 3 days. Mild redness, swelling, tenderness and occasional small bruises can occur. Avoid makeup for the rest of the day, and skip saunas, alcohol and heavy exercise for a day or two. See aftercare after skin boosters for full guidance.

How many sessions are needed?

A typical course is 3 to 4 sessions spaced about 2 to 4 weeks apart. Improvement builds gradually and is usually assessed about 1 to 3 months after the course. Some patients continue with maintenance sessions every few months. Results vary by individual, and booster treatment does not erase scars.

What is Rejuran Healer combined with for scars?

Lasers: Resurfacing or fractional lasers can remodel scar tissue, while Rejuran supports recovery and skin quality.
Subcision: Releasing tethered rolling scars can be combined with boosters to support the treated area.
Exosome therapy: Sometimes used after lasers to calm skin; see exosome therapy for acne scars.

Your doctor decides the order and spacing so the skin is not over-treated.

How should I prepare, and what helps afterward?

For about a week before treatment, avoid starting new active skincare and let the clinic know about any supplements or medications that increase bruising, such as aspirin, fish oil or vitamin E. Arrive without heavy makeup if possible. After treatment, keep the skin clean, use a gentle moisturizer and broad-spectrum sunscreen, and avoid picking at any small bumps. If you also use acne medication, ask the doctor how to time it around sessions.

Is Rejuran Healer right for scars if I am only in Seoul briefly?

A single session can improve skin quality, but scar results usually depend on completing a course. Visitors on a short trip sometimes start treatment in Hongdae and continue at another time, or focus on one session combined with a laser. Discuss your travel dates at consultation so the plan is realistic.

What are the alternatives?

If boosters are not a good fit, options may include CellREDM for acne scars, laser-based resurfacing, or scar-specific injections. Each has different downtime and session requirements. Pricing depends on the plan and is confirmed in writing at consultation; book through our Booking page.

Does Rejuran Healer hurt for acne scars?

Rejuran involves many small injections, so it can be uncomfortable, especially over scarred or bony areas. Numbing cream applied beforehand reduces discomfort for most patients, and some clinics use injector devices to make the process faster. Tell the practitioner if you need a pause.

Can I combine Rejuran with laser on the same day?

Sometimes. Certain lasers and boosters can be performed in the same visit, while other combinations are better spaced a week or more apart. It depends on the laser type, your skin's sensitivity and your schedule. Your doctor will set a safe order at consultation.

How soon will my scars look better?

Rejuran works gradually. Some patients notice improved glow and texture within a few weeks, but changes in scar appearance are typically assessed one to three months after completing a course. Results vary by individual, and deeper scars often need additional treatments.