Introduction: When Skin Starts to Lose Its Spark

Aging rarely happens overnight. More often, it arrives quietly—in the form of tired-looking skin, subtle roughness, loss of elasticity, or a dull tone that doesn't bounce back with sleep or skincare. At 1mm Plastic Surgery in Gangnam, Seoul, we meet many patients who aren't looking to change how they look. They want to look healthier, brighter, and more rested. They're searching not for transformation, but restoration.

That’s where Rejuran Skin Boosters come in.

Unlike filler or Botox, Rejuran is not designed to change facial contours or suppress muscle activity. Instead, it works beneath the surface, regenerating and repairing the skin at a cellular level. Through a series of microinjections, Rejuran introduces powerful polynucleotides (PN) into the dermis, where they encourage collagen production, improve elasticity, and repair micro-damage.

This is regenerative medicine applied to aesthetic care—and for many, it’s the secret behind the coveted "Korean glow."

What Is Rejuran and How Does It Work?

Rejuran is a type of skin booster injection, first popularized in South Korea and now used globally for anti-aging and skin repair. Its main ingredient is polynucleotides (PN), which are DNA fragments derived from salmon. While it may sound unconventional, these molecules are highly biocompatible with human skin and have powerful regenerative properties.

The Science Behind Rejuran:

When injected into the dermis, PN molecules stimulate:

• Collagen synthesis, improving skin firmness and elasticity.
• Fibroblast activity, which is essential for wound healing and structural skin repair.
• Angiogenesis, or the formation of new blood vessels, enhancing skin nutrition.
• Anti-inflammatory response, reducing redness and helping to calm sensitive or compromised skin.

This is what sets Rejuran apart: it doesn't add volume like filler or freeze muscle movement like Botox. Instead, it helps the skin heal itself—rebuilding strength, hydration, and youthfulness from within.

Who Can Benefit from Rejuran?

Rejuran is an excellent option for patients experiencing early to moderate signs of skin aging, or anyone whose skin has been damaged by environmental stress, laser treatments, or acne.

Common patient concerns that Rejuran addresses include:

• Loss of glow or dull, tired skin

• Fine lines and early wrinkles

• Large pores and rough texture

• Post-acne scarring or pigmentation

• Thinning, crepey skin around the eyes or mouth

• Sensitivity or inflammation after repeated skincare treatments

At 1mm Plastic Surgery, we often treat patients in their late 20s to early 50s who are looking to slow the signs of aging or maintain a youthful baseline. It's particularly effective for those who want visible improvements without dramatic cosmetic changes.

Rejuran can be used preventatively or as a restorative treatment. Think of it as skin rehabilitation—a way to reset and revive your skin before visible aging sets in deeply.

The 1mm Approach: How We Administer Rejuran?

At 1mm Plastic Surgery, technique matters just as much as the product. We believe in millimeter-level precision, especially when it comes to skin rejuvenation.

Every Rejuran treatment at our clinic begins with a deep understanding of your skin’s history, sensitivity, and goals. Here’s what you can expect from the process:

Step 1: In-Depth Skin Analysis

We begin with a thorough skin assessment. This includes evaluating:

• Skin thickness and hydration levels

• Pore density and elasticity

• Collagen condition and fine line patterns

• History of procedures or product sensitivity

We don’t believe in one-size-fits-all protocols. Your treatment map is custom-designed based on what your skin truly needs—not just what’s trending.

Step 2: Customized Micro-Injection Technique

Rejuran is delivered using micro-droplet injections, spaced carefully across the treatment area. While many clinics rely on pre-set templates or automated devices, we inject manually to control:

• Depth (superficial for crepiness, deeper for elasticity)

• Placement (targeting areas like under-eyes, cheeks, and smile lines)

• Dosage (adjusted for skin thickness and sensitivity)

This manual technique ensures even distribution, minimal trauma, and precise stimulation of collagen where it’s needed most.

For delicate zones like the under-eye area, we use a shallower injection technique to treat crepiness and dark circles. For thicker areas like the cheeks and chin, we go deeper to encourage dermal thickening and bounce.

Step 3: Recovery and Aftercare

Immediately after treatment, small "bee-sting" bumps may appear where the injections were placed. These typically subside within 12 to 24 hours. Some patients may experience mild redness or tightness, but there is rarely bruising.

We support recovery with optional add-ons such as:

• LDM (Local Dynamic Micro-massage) for inflammation control

• Cooling masks with ceramides and panthenol

• LED therapy to enhance wound healing without heat

Within days, most patients notice an initial improvement in skin texture, with deeper benefits unfolding over the next several weeks.

How Often Should You Get Rejuran?

Rejuran is not a one-time solution. It works cumulatively, with each session building on the previous one to deliver more noticeable and longer-lasting improvements.

Recommended Treatment Plan:

• Initial Phase: 3 to 4 treatments spaced 3 to 4 weeks apart
• Maintenance Phase: 1 session every 4 to 6 months

This schedule allows the skin to rebuild in cycles, encouraging long-term improvement in elasticity, texture, and hydration. Some patients choose to combine Rejuran with other treatments like laser toning, lifting threads, or Botox to enhance their results.

Think of it like going to the gym for your skin—the real transformation happens with consistency.

What Results Can You Expect?

Rejuran doesn’t offer instant gratification like fillers or Botox. But over time, the results are often more natural and more profound because they come from within your own skin’s healing abilities.

Most patients begin to see:

• Brighter, more even skin tone within 2–3 weeks

• Smoother texture and tighter pores by week 4 to 6

• Reduced fine lines and firmer skin around 8 weeks

• A consistent glow and resilience in skin over 3 to 4 months

Results vary based on age, skin condition, and lifestyle. However, because Rejuran encourages true biological repair, the effects tend to be longer-lasting and more sustainable than treatments that simply add volume or suppress muscle movement.

Why Korean Clinics Trust Rejuran for Natural Anti-Aging?

In South Korea, where aesthetics are approached with subtlety and balance, Rejuran has become a go-to treatment. Patients here are less focused on dramatic changes and more focused on preserving harmony and youthfulness.

Clinics like 1mm Plastic Surgery favor Rejuran for:

• Its compatibility with sensitive skin

• Its regenerative effect without bulk or swelling

• Its ability to support post-laser, post-lifting, or post-acne recovery

• Its alignment with the philosophy of preventative aging

We often recommend it to patients who aren’t ready for surgery but want more than what skincare alone can achieve. It bridges the gap between cosmetics and medical aesthetics—ideal for those seeking a refined, naturally beautiful result.

A Surgeon’s Perspective: What We Notice That Patients Don’t

As facial surgeons, we’re trained to see things most patients overlook. One of the first signs of aging is not wrinkles, but a shift in skin reflectivity and texture. Dullness, patchiness, or thinning skin often makes a person appear older than they are—even if their facial structure remains intact.

What Rejuran does best is restore that smooth, even canvas. When light reflects evenly across the face, the whole appearance becomes more radiant and youthful. This is why Rejuran is often the starting point in many of our long-term anti-aging plans.

It creates the perfect base for other enhancements and keeps the skin strong enough to handle future procedures with less risk.

Conclusion: Subtle but Transformative

At 1mm Plastic Surgery, we believe in subtle changes that make a significant difference. A millimeter in skin texture, a shift in light reflectivity, a slight improvement in elasticity—these are the details that define beauty.

Rejuran Skin Boosters embody that philosophy. They don’t change your appearance. They bring it back to life. With a few precise injections, guided by expert hands and a customized plan, Rejuran helps your skin remember how to heal, glow, and thrive.

If you’re ready to invest in your skin’s health and future, Rejuran could be the beginning of a beautiful transformation. Especially when delivered by a team that values every detail—down to the last millimeter.