The sunken eye solution: Rejuran I (Eye) and under-eye fillers
The sunken eye solution: Rejuran I (Eye) and under-eye fillers
In 2026, the "tired eye" look is no longer treated with a one-size-fits-all approach. Korean dermatologists have perfected a dual-action strategy for sunken eyes: Structural Filling combined with Biological Repair. While traditional fillers provide the volume to bridge hollow gaps, Rejuran I—a specialized salmon-DNA booster—thickens the thin, parchment-like skin of the lower eyelid. This combination ensures that the under-eye area doesn't just look "full," but also healthy, resilient, and naturally bright.
Who Is This Under-Eye Duo Best For?
This protocol is the gold standard for those whose "tired eyes" persist despite sleep and eye creams:
- Deep Tear Troughs: Visible hollows that create a shadow between the eye and the cheek
- Crepey Skin Texture: Thin, paper-like skin that wrinkles when you smile
- Vascular Dark Circles: Darkness caused by thin skin revealing the blood vessels beneath
- "Sunken" Appearance: A loss of fat and collagen due to aging or genetics
- Filler-Hesitant Patients: Those who want volume but are afraid of looking "puffy" or unnatural
👉 Especially popular among international travelers who want to erase a "jet-lagged" appearance in a single clinical visit.
Key Benefits
- Instant Volume: Fillers provide an immediate "lift" to hollow tear troughs, erasing shadows instantly.
- Tissue Regeneration: Rejuran I triggers the skin to heal itself, increasing dermal thickness by up to 20%.
- No "Tyndall Effect": Strengthening the skin barrier with Rejuran prevents the blueish tint sometimes seen with fillers in thin skin.
- Synergistic Longevity: Healthy, thick skin provides better support for fillers, often extending their lifespan.
- Onset: Volume is instant; skin texture and thickness improvements peak after 2–3 sessions.
👉 Summary: Best for hollow tear troughs, crepey texture, and chronically tired-looking eyes
The 2026 Protocol: "The Volume & Vitality Stack"
In Seoul, clinics treat the under-eye as a delicate ecosystem, layering treatments for a seamless transition:
1. The Foundation: Hyaluronic Acid (HA) Fillers
- The Goal: Filling the structural deficit.
- The Action: Using a micro-cannula (a blunt-tipped needle), the doctor places a soft, cohesive filler (like Restylane Eyelight or Belotero) deep beneath the muscle to lift the hollow area without lumps.
2. The Healer: Rejuran I (Polynucleotides)
- The Goal: Biological skin thickening.
- The Action: Unlike the "Classic" Rejuran, Rejuran I is a lower-viscosity formula designed specifically for the thin skin of the eyes. It stimulates fibroblasts to produce new collagen and elastin, "erasing" fine lines.
Main Effects & Comparison
Under-Eye Fillers Alone
- Core Goal: Adding volume to hollow areas.
- Best For: Structural "dents" and deep tear troughs.
- Key Result: Immediate volume, but doesn't improve skin quality or fine wrinkles.
Rejuran I + Filler Duo
- Core Goal: Volumizing the hollows + Repairing the skin surface.
- Best For: Sunken eyes with visible fine lines and thin skin.
- Key Result: A bright, "rested" look with improved skin elasticity and zero "sunken" shadows.
The Procedure Step-by-Step
- Dynamic Facial Mapping: The doctor observes your face while you smile and squint to identify where volume is missing.
- Numbing: A specialized lidocaine cream is applied for 20–30 minutes to ensure a painless experience.
- Cannula Volumizing: Filler is placed deep into the tear trough. Using a cannula minimizes bruising and ensures safety around the eye’s delicate vessels.
- Micro-Injection Repair: Rejuran I is injected in tiny "pearls" into the superficial dermis around the entire periorbital area.
- Manual Smoothing: The doctor gently massages the area to ensure a perfectly smooth transition from the eye to the cheek.
- Total Duration: Approximately 45–60 minutes.
Precautions & Aftercare
- Tiny Bumps: Rejuran I may leave small, pearl-like bumps under the skin. These are normal and usually disappear within 12–24 hours.
- Minimal Swelling: The under-eye area holds fluid easily; expect mild puffiness for 2–3 days.
- No Goggles or Pressure: Avoid swimming goggles or heavy glasses that press on the treated area for at least one week.
- Sun Defense: Post-procedure skin is sensitive. Wear sunglasses and SPF to prevent the new collagen from being damaged by UV rays.
Estimated Pricing (In Korea)
- Rejuran I (1cc per session): Approx. ₩150,000 – ₩300,000.
- Under-Eye Filler (per 1cc): Approx. ₩300,000 – ₩600,000.
- "Bright Eye" Combo Package: Approx. ₩500,000 – ₩900,000.
Why Get This Treatment in Korea?
- The "Eye-Specialist" Approach: Many Seoul clinics have dedicated "Eye Centers" that focus solely on the periorbital area, offering unmatched precision.
- Gentle Techniques: The use of micro-cannulas is standard in Korea, significantly reducing the risk of the "bruised eye" look common with needle-only injections.
- Superior Product Access: Korea is the birthplace of Rejuran, meaning clinics here have the most extensive clinical data on how to combine it safely with various filler brands for the most natural result.
Final Thoughts
Sunken eyes often make us look more tired or stressed than we actually feel. In 2026, you don't have to choose between "filling a hole" and "treating the skin." By combining the immediate lifting power of fillers with the regenerative magic of Rejuran I, Seoul’s clinics provide a comprehensive solution that restores both volume and youthfulness. If you’re ready to wake up your eyes and achieve a truly refreshed look, this dual-action protocol is the gold standard for 2026.













