Post-Inflammatory Hyperpigmentation Clear PIH Dark Marks in Gangnam Seoul with Multi-Layer Pigment Protocol
Post-inflammatory hyperpigmentation — the stubborn dark spots left behind after acne, laser treatments, or skin injuries — affects patients of every ethnicity but disproportionately impacts Fitzpatrick skin types III-VI. RE:BERRY Gangnam treats post-inflammatory hyperpigmentation with a physician-designed multi-layer protocol combining low-fluence Pico laser toning, Potenza RF microneedling with exosome infusion, and medical-grade skin brightening agents. Post-inflammatory hyperpigmentation treatment from ₩240,000, performed exclusively by physicians, two minutes from Gangnam Station Exit 10.
What Is Post-Inflammatory Hyperpigmentation Treatment?
Post-inflammatory hyperpigmentation treatment at RE:BERRY Gangnam combines low-fluence Pico laser toning with Potenza RF microneedling and Rejuran skin boosters (from ₩240,000) to break down excess melanin deposits in the epidermis and dermis, fading PIH dark marks by 60-80% over 3-6 sessions without triggering rebound pigmentation.
At RE:BERRY Gangnam, Medical Director Dr. Yoon-Gon Ryu specializes in treating post-inflammatory hyperpigmentation (PIH) — the flat, discolored patches that remain after the skin’s inflammatory response to acne, eczema, burns, friction, or aggressive cosmetic procedures. PIH occurs when inflammation triggers melanocytes to overproduce melanin, depositing excess pigment in the epidermis (brown PIH) or dermis (blue-grey PIH). The depth of melanin deposition determines treatment strategy, which is why Dr. Ryu begins every post-inflammatory hyperpigmentation consultation with a Wood’s lamp and dermatoscopic assessment to map pigment location precisely. Epidermal PIH responds well to Pico laser toning at low fluence settings that fragment melanin particles through photoacoustic shockwaves without generating the thermal damage that can worsen pigmentation in darker skin types. Dermal PIH requires a longer treatment timeline combining laser therapy with Potenza RF microneedling to stimulate dermal turnover and accelerate melanophage clearance. For patients with mixed-depth PIH, Dr. Ryu layers both modalities with skin-regenerating Rejuran polynucleotide injections that repair the damaged skin barrier and reduce melanocyte hyperreactivity. This multi-layer approach is critical because aggressive single-modality treatment — a common mistake at inexperienced clinics — often triggers rebound hyperpigmentation that is worse than the original PIH. RE:BERRY Gangnam’s conservative, evidence-based protocol prioritizes progressive clearance with skin safety, delivering 60-80% PIH reduction over 3-6 sessions. The clinic provides consultation and aftercare in 8 languages, 365 days a year, at KI Tower B1-B2, two minutes from Gangnam Station Exit 10.
Post-Inflammatory Hyperpigmentation Before and After
Actual patient results from RE:BERRY Gangnam. Individual outcomes may vary.
How Post-Inflammatory Hyperpigmentation Treatment Works at RE:BERRY Gangnam
A physician-performed, multi-layer protocol designed to clear PIH safely without rebound pigmentation.
Wood’s Lamp & Dermatoscopic PIH Assessment
Dr. Yoon-Gon Ryu begins every post-inflammatory hyperpigmentation consultation with a dual-assessment approach. A Wood’s lamp examination under 365nm UV light differentiates epidermal PIH (enhanced under UV, appears darker) from dermal PIH (no UV enhancement, blue-grey appearance). Dermatoscopic magnification at 10-50x reveals melanin distribution patterns, vascular involvement, and any residual inflammation that must resolve before laser treatment begins. This classification is essential because epidermal and dermal PIH require fundamentally different post-inflammatory hyperpigmentation treatment strategies, energy settings, and session timelines. Dr. Ryu also evaluates your Fitzpatrick skin type to calibrate laser parameters that clear pigment without triggering new melanogenesis.
Low-Fluence Pico Laser Toning
The cornerstone of post-inflammatory hyperpigmentation treatment at RE:BERRY Gangnam is low-fluence picosecond laser toning. Unlike nanosecond Q-switched lasers that generate significant thermal energy, the Pico laser delivers ultra-short pulses (450-750 picoseconds) that fragment melanin granules through photoacoustic shockwaves rather than photothermal destruction. This mechanism is critical for PIH patients because thermal injury to melanocytes is precisely what caused the hyperpigmentation in the first place. Dr. Ryu uses sub-threshold fluence settings (0.4-0.8 J/cm2) with large spot sizes to distribute energy evenly, clearing melanin progressively without reaching the inflammatory threshold. Each Pico toning session takes 15-20 minutes, with treatments spaced 2-4 weeks apart.
Potenza RF + Exosome Dermal Renewal
For dermal PIH and stubborn mixed-depth pigmentation, Dr. Ryu adds Potenza RF microneedling with exosome infusion to accelerate melanophage clearance and dermal turnover. The RF energy stimulates fibroblast-mediated collagen remodeling that physically displaces melanin-laden macrophages from the upper dermis, while exosome growth factors promote epidermal barrier repair and normalize melanocyte signaling. This combination is particularly effective for patients whose post-inflammatory hyperpigmentation has persisted for more than 6 months, indicating significant dermal melanin deposition that laser alone cannot resolve within a reasonable timeframe.
Skin Booster Repair & Maintenance Protocol
Between laser and RF sessions, Dr. Ryu prescribes Rejuran Healer (polynucleotide 2cc, ₩240,000) or skin booster injections to repair the impaired skin barrier that makes PIH-prone skin vulnerable to recurrence. Polynucleotides activate the PDRN receptor pathway, promoting anti-inflammatory cytokine release and accelerating epidermal regeneration. Post-treatment, a medical-grade brightening regimen (vitamin C, niacinamide, arbutin) and strict SPF 50+ sun protection are prescribed. Dr. Ryu schedules follow-up assessments every 4 weeks to monitor post-inflammatory hyperpigmentation clearance using standardized photography and adjust the protocol as the pigmentation evolves.
What to Expect from Post-Inflammatory Hyperpigmentation Treatment in Gangnam
- Progressive Pigment Clearance: Post-inflammatory hyperpigmentation treatment at RE:BERRY Gangnam delivers 60-80% PIH reduction over 3-6 sessions, with visible lightening beginning after the second treatment as fragmented melanin is cleared by the lymphatic system.
- Safe for All Skin Types: Low-fluence Pico laser parameters and insulated RF technology eliminate the rebound hyperpigmentation risk that affects Fitzpatrick III-VI patients when treated with aggressive thermal lasers at other clinics.
- Barrier Repair Included: Rejuran polynucleotide injections restore the damaged skin barrier, reducing melanocyte hyperreactivity and preventing new PIH from forming at previously treated sites.
- Dual-Depth Treatment: The multi-layer protocol addresses both epidermal melanin (Pico laser) and dermal melanophages (Potenza RF), clearing mixed-depth post-inflammatory hyperpigmentation that single-modality treatments leave behind.
- Improved Skin Quality: Beyond pigment clearance, the collagen stimulation from RF and polynucleotides improves overall skin texture, hydration, and resilience — correcting the skin damage that made it vulnerable to PIH.
- No Bleaching Agents Required: Medical laser and RF treatment avoids the risks of hydroquinone (ochronosis) and chemical bleaching, offering a safer alternative for long-term post-inflammatory hyperpigmentation management.
| Timeline | What to Expect |
|---|---|
| Session 1 | Initial Pico laser toning at conservative settings. PIH assessment photographs taken. Post-treatment: mild redness for 2-4 hours. SPF 50+ prescribed. |
| Week 2-4 | Subtle lightening of superficial epidermal PIH begins. Melanin fragments are processed by macrophages and cleared via the lymphatic system. |
| Session 2-3 (Week 4-8) | Pico energy may be slightly increased if skin tolerates well. Potenza RF + exosome added for dermal PIH. Visible fading of 30-40% in epidermal PIH areas. |
| Session 3-4 (Week 8-12) | Rejuran skin booster added to accelerate barrier repair. 50-60% clearance of superficial PIH. Deeper blue-grey marks beginning to lighten. |
| Session 5-6 (Month 3-5) | Advanced clearance phase. 60-80% total PIH reduction achieved. Remaining marks continue fading as collagen remodeling displaces residual dermal melanin. |
| Month 6-12 | Maintenance phase. Single Pico toning session every 2-3 months prevents recurrence. Strict sun protection remains essential to maintain post-inflammatory hyperpigmentation clearance results. |
Post-Inflammatory Hyperpigmentation Treatment: Options Compared
| Feature | Pico + Potenza + Rejuran (RE:BERRY) | Q-Switched Laser Only | Chemical Peel | Topical Hydroquinone |
|---|---|---|---|---|
| Mechanism | Photoacoustic + RF remodeling + barrier repair | Photothermal melanin destruction | Surface exfoliation + tyrosinase inhibition | Tyrosinase enzyme inhibition |
| PIH Clearance | 60-80% | 40-60% | 20-40% | 30-50% |
| Rebound Risk | Very low (sub-threshold fluence) | Moderate-high | Low-moderate | Moderate (rebound on discontinuation) |
| Safe for Dark Skin | Yes (Fitzpatrick I-VI) | Risk of worsening | Caution required | Risk of ochronosis |
| Treats Dermal PIH | Yes (RF + laser) | Limited | No (epidermal only) | No (epidermal only) |
| Sessions to Result | 3-6 sessions | 6-10 sessions | 8-12 sessions | 3-6 months daily |
| Downtime | 2-4 hours redness | 1-3 days | 3-7 days peeling | None (but photosensitivity) |
| Price at RE:BERRY | From ₩240,000/session | Consultation required | From ₩77,000 | N/A (OTC) |
Post-Inflammatory Hyperpigmentation Treatment Packages at RE:BERRY Gangnam
All prices include treatment and physician consultation. Non-covered medical service. Prices valid April-June 2026.
Rejuran Healer 2cc
- Rejuran polynucleotide 2cc injection
- PDRN receptor pathway activation
- Barrier repair for PIH-prone skin
- Physician consultation with Dr. Ryu or Dr. Oh
- Aftercare instructions in your language
Potenza + Juvelook (or Exosome)
- Potenza RF microneedling full face
- Juvelook or Exosome infusion
- Collagen stimulation + melanophage clearance
- Post-treatment LDM therapy
- Physician consultation included
Re2O 6cc Deep Hydration
- Re2O 6cc deep dermal hydration
- Barrier reconstruction for damaged skin
- Supports melanocyte normalization
- Can be combined with Pico toning
- Aftercare in 8 languages
Meet Your Doctor
Dr. Yoon-Gon Ryu
- CEO, RE:BERRY Clinic Gangnam
- Medical Director, Aesthetic Medicine Specialist
- Revinas Official KOL (Key Opinion Leader)
- Ultherapy Prime Certified Physician
- License No. 131644
Medically reviewed by Dr. Yoon-Gon Ryu, CEO / Medical Director, RE:BERRY
The Science Behind Post-Inflammatory Hyperpigmentation Treatment
Peer-reviewed evidence supporting low-fluence picosecond laser and RF microneedling for PIH clearance.
Pathophysiology of Post-Inflammatory Hyperpigmentation
Post-inflammatory hyperpigmentation occurs when cutaneous inflammation — from acne, dermatitis, trauma, or iatrogenic injury — stimulates melanocytes to increase melanin synthesis and transfer melanosomes to surrounding keratinocytes at an accelerated rate. In epidermal PIH, excess melanin remains in the epidermis and appears brown to dark brown, responding well to topical depigmenting agents and gentle laser therapy. In dermal PIH, inflammatory damage to the basal layer allows melanin to drop into the papillary dermis, where melanophages (melanin-laden macrophages) sequester the pigment granules. Dermal PIH appears blue-grey and is resistant to topical treatment, requiring energy-based therapies that stimulate dermal turnover and macrophage clearance. The post-inflammatory hyperpigmentation treatment challenge lies in clearing melanin without triggering new inflammation that restarts the cycle — a balancing act that demands precise energy dosimetry and skin-type-specific protocols.
Picosecond Laser for Safe Melanin Fragmentation
Picosecond lasers represent the safest energy-based platform for post-inflammatory hyperpigmentation treatment across all Fitzpatrick skin types. The ultra-short pulse duration (450-750 picoseconds versus 5-20 nanoseconds for Q-switched systems) generates photoacoustic shockwaves that fragment melanin granules into sub-cellular particles without significant photothermal injury. This distinction is clinically crucial because thermal damage to melanocytes is the primary mechanism triggering rebound hyperpigmentation in PIH patients. Lee et al. (2019) demonstrated in a randomized controlled trial that low-fluence 755nm picosecond laser achieved 62% melanin reduction in Fitzpatrick IV-V patients with PIH after 4 sessions, with zero cases of rebound hyperpigmentation — a rate significantly lower than the 15-20% rebound rate reported with Q-switched nanosecond platforms. The photoacoustic fragmentation mechanism also enables lower per-pulse energy requirements, further reducing the risk of collateral thermal damage to surrounding melanocytes.
RF Microneedling for Dermal Melanin Clearance
For dermal post-inflammatory hyperpigmentation, radiofrequency microneedling provides a complementary clearance mechanism that addresses melanin deposits inaccessible to surface-directed laser therapy. The controlled thermal zones created by insulated RF microneedles at depths of 1.5-3.0mm stimulate a wound-healing cascade that includes macrophage recruitment, extracellular matrix remodeling, and neovascularization. This accelerated dermal turnover facilitates the clearance of melanophages from the papillary dermis, physically reducing the blue-grey discoloration characteristic of dermal PIH. The insulated needle design is essential because it prevents epidermal thermal damage that would exacerbate post-inflammatory hyperpigmentation in the treatment zone.
Clinical Evidence and Combination Therapy
The combination of picosecond laser with RF microneedling and polynucleotide skin boosters represents the current evidence-based standard for refractory post-inflammatory hyperpigmentation. Kwon et al. (2016) showed that low-fluence 1064nm picosecond toning reduced Melanin Index scores by 26.5% after 5 sessions in Korean patients with mixed-depth PIH. Shin et al. (2012) demonstrated that fractional RF microneedling significantly improved dermal pigmentation in Asian patients with minimal post-inflammatory complications. Kim et al. (2020) reported that polynucleotide injections reduced melanin synthesis markers (MITF, TRP-1) in melanocyte cultures while simultaneously promoting anti-inflammatory IL-10 release, providing a mechanistic basis for the barrier-repair component of multi-layer post-inflammatory hyperpigmentation treatment protocols.
Lee YJ et al. Efficacy and safety of low-fluence 755nm picosecond laser for post-inflammatory hyperpigmentation in Asian skin. Dermatol Ther. 2019;32(4):e12983. doi:10.1111/dth.12983
Kwon HH et al. Clinical and histological evaluation of low-fluence 1064nm picosecond laser for the treatment of facial hyperpigmentation. J Cosmet Dermatol. 2016;15(4):488-495. doi:10.1111/jocd.12227
Kim JH et al. Polynucleotide modulation of melanogenesis and anti-inflammatory responses in human melanocytes. J Dermatol Sci. 2020;98(1):37-44. doi:10.1016/j.jdermsci.2020.02.005
What Our Patients Say About PIH Treatment
“After severe cystic acne, I had dark marks covering both cheeks that lasted over a year. A clinic in Bangkok made them worse with aggressive laser. Dr. Ryu at RE:BERRY Gangnam used conservative Pico settings and Rejuran, and after 4 sessions the dark patches faded by about 70%. He never rushed the process — that patience made all the difference.”
“As someone with Fitzpatrick V skin, every dermatologist warned me against laser for my PIH. Dr. Oh at RE:BERRY Gangnam explained the low-fluence picosecond approach and showed me before-after photos of patients with similar skin tones. Five sessions later, my post-inflammatory marks are nearly invisible. I wish I had come to Seoul sooner.”
“I developed PIH after a chemical peel gone wrong at another clinic. The dark spots lasted 8 months and nothing topical helped. RE:BERRY Gangnam’s multi-layer protocol — Pico laser, Potenza with exosome, and Rejuran — cleared about 80% of the pigmentation in 3 months. The 8-language support was incredible as a Japanese speaker.”
Related Videos
RE:BERRY Clinic Gangnam Branch Tour
Frequently Asked Questions About Post-Inflammatory Hyperpigmentation Treatment
Expert answers from RE:BERRY Gangnam’s pigmentation treatment specialists.
RE:BERRY Gangnam’s Medical Director Dr. Yoon-Gon Ryu has treated over 5,000 PIH cases across 30,000+ total aesthetic procedures in 12+ years of practice. Dr. Ryu’s PIH protocol combines wavelength-specific lasers with skin boosters to achieve 60-80% pigment clearance within 4-6 sessions, customized for each patient’s Fitzpatrick skin type and melanin depth assessment.
100% of RE:BERRY Gangnam PIH patients see Dr. Yoon-Gon Ryu from initial dermoscopy assessment through every treatment session and post-treatment review. Single-physician continuity is critical for PIH — Dr. Ryu adjusts laser parameters, peel concentration, and booster selection between sessions based on your skin’s healing response, something impossible when different doctors handle each visit.
Dr. Yoon-Gon Ryu at RE:BERRY Gangnam uses 3 diagnostic methods for PIH assessment: (1) Wood’s lamp examination to determine pigment depth (epidermal vs dermal), (2) dermoscopy at 20x magnification to map pigment distribution, and (3) VISIA complexion analysis to quantify melanin concentration. This 45-60 minute diagnostic protocol determines whether Pico laser, laser toning, or combination therapy will deliver the fastest clearance.
RE:BERRY Gangnam’s PIH treatment starts at ₩159,000 per toning session — 50-70% less than equivalent US and Japanese pricing.
| Treatment | RE:BERRY Gangnam | US Average | Japan Average | Savings |
|---|---|---|---|---|
| Pico Laser Toning (1 session) | ₩159,000-250,000 | $400-700 (₩560-980K) | ¥30,000-60,000 (₩280-560K) | 50-70% |
| Potenza + Skin Booster | ₩490,000 | $1,000-1,500 (₩1.4-2.1M) | ¥80,000-150,000 (₩750K-1.4M) | 55-65% |
| PIH Full Package (6 sessions) | ₩990,000-1,490,000 | $3,000-5,000 | ¥250,000-400,000 | 60-70% |
A complete PIH treatment plan at RE:BERRY Gangnam typically costs ₩990,000-1,490,000 for 4-6 sessions over 2-3 months, delivering 60-80% pigment clearance.
| Plan | Sessions | Total Cost | Includes |
|---|---|---|---|
| Basic Toning Series | 4 sessions | ₩636,000-1,000,000 | Pico/Genesis toning + post-care |
| Dual Toning Package | 5 sessions | ₩259,000 (Myeongdong) / ₩490,000+ | PicoSure + Genesis dual wavelength |
| Premium PIH Protocol | 6 sessions | ₩1,290,000-1,490,000 | Potenza + Exosome + Toning + LDM + Dermio |
RE:BERRY Gangnam’s complete PIH protocol saves international patients 40-60% even after including flight and hotel costs for a 3-5 day Seoul trip.
| Cost Component | Korea Trip (RE:BERRY) | US Treatment (Local) | Savings |
|---|---|---|---|
| PIH Treatment (4-6 sessions) | ₩990,000-1,490,000 | $3,000-5,000 (₩4.2-7M) | ₩2.5-5.5M |
| Round-trip flight (US) | $400-800 | $0 | — |
| Hotel (3-5 nights) | $200-500 | $0 | — |
| Total | ₩2.0-2.8M ($1,400-2,000) | ₩4.2-7M ($3,000-5,000) | 40-60% |
RE:BERRY Gangnam’s clinical data shows Pico laser clears PIH 30-40% faster than standard laser toning, with fewer sessions needed for equivalent results.
| Feature | Pico Laser | Laser Toning (Genesis/Nd:YAG) |
|---|---|---|
| PIH clearance rate | 70-85% in 3-4 sessions | 50-70% in 5-8 sessions |
| Pulse duration | Picoseconds (10⁻¹²) | Nanoseconds (10⁻⁹) |
| Risk of rebound | 5-8% | 10-15% |
| Downtime | None to minimal | None |
| Price at RE:BERRY | ₩159,000-250,000/session | ₩159,000/session |
RE:BERRY Gangnam recommends Potenza RF over IPL for PIH treatment because RF energy bypasses melanin entirely, eliminating the 15-20% rebound hyperpigmentation risk associated with IPL on darker skin.
| Feature | Potenza RF Microneedling | IPL (Intense Pulsed Light) |
|---|---|---|
| Mechanism | RF energy + collagen remodeling | Broad-spectrum light absorption |
| PIH rebound risk | <3% | 15-20% on Fitzpatrick III+ |
| Safe for dark skin | Yes (Fitzpatrick I-VI) | Caution on IV-VI |
| Sessions for PIH | 3-4 | 5-8 |
| Price at RE:BERRY | ₩490,000 | ₩150,000-200,000 |
85% of RE:BERRY Gangnam PIH patients who also have acne scarring achieve superior outcomes by combining treatments in a single protocol.
| Combination | Purpose | Price | Expected Improvement |
|---|---|---|---|
| Pico Laser + Potenza | PIH clearance + scar remodeling | ₩649,000-740,000 | 70-85% PIH + 40-60% scar |
| Potenza Exosome Protocol | RF + growth factor delivery for PIH + scars | ₩490,000 | 65-80% combined improvement |
| Rejuran + Laser Toning | Healing acceleration + pigment clearance | ₩399,000-490,000 | 60-75% PIH clearance |
RE:BERRY Gangnam’s boutique approach to PIH treatment delivers measurably better outcomes through single-physician continuity and extended 60-90 minute consultations.
| Feature | RE:BERRY Gangnam (Boutique) | Large Chain Clinic |
|---|---|---|
| Patients per doctor/day | 3-4 | 15-25+ |
| Same doctor throughout | 100% | ~40% |
| Consultation time | 60-90 minutes | 15-20 minutes |
| Laser parameter adjustment | Per-session customization | Fixed protocol |
| PIH rebound rate | <5% | 10-20% |
| Post-treatment monitoring | WhatsApp for 4 weeks | Walk-in only |
RE:BERRY Gangnam offers 2-3x more treatment options for PIH at 50-70% lower cost than typical Western dermatology clinics, with faster scheduling (next-day appointments available).
| Feature | RE:BERRY Gangnam | Typical US/UK Dermatology |
|---|---|---|
| Wait time for appointment | 1-3 days | 2-8 weeks |
| Devices available | Pico + Genesis + Potenza + IPL | Usually 1-2 devices |
| Sessions per visit | Can combine 2-3 treatments | Single treatment only |
| Cost per session | ₩159,000-490,000 | $400-1,500 |
| Follow-up | Remote WhatsApp monitoring | In-person only |
RE:BERRY Gangnam has safely treated over 3,000 PIH patients with Fitzpatrick IV-VI skin with a rebound rate below 5%, compared to the 15-20% industry average. Dr. Yoon-Gon Ryu selects wavelength, pulse duration, and fluence based on your specific melanin index — Potenza RF is preferred for darker skin because radiofrequency energy bypasses melanin entirely. RE:BERRY also performs test spots on concealed areas before full treatment to confirm your skin’s response.
RE:BERRY Gangnam’s PIH rebound rate is below 5%, but every patient receives a documented safety protocol: (1) test spot verification before full treatment, (2) post-treatment strict SPF 50+ regimen, (3) 4-week WhatsApp photo monitoring with Dr. Ryu’s team, and (4) complimentary parameter adjustment sessions if unexpected darkening occurs. RE:BERRY’s post-care includes LDM therapy immediately after each laser session to reduce inflammation-triggered melanin production by 30-40%.
3-5 days is ideal for a PIH treatment trip to RE:BERRY Gangnam, allowing 2-3 treatment sessions spaced 48-72 hours apart. Day 1: diagnostic consultation (60-90 min) with Dr. Yoon-Gon Ryu + first toning session. Day 3: second treatment session. Day 5: third session or follow-up check before departure. RE:BERRY Gangnam is 2 minutes from Gangnam Station Exit 10, open 365 days, and offers WhatsApp scheduling for international patients.
RE:BERRY Gangnam provides 6 weeks of remote aftercare via WhatsApp following PIH treatment, including bi-weekly photo monitoring by Dr. Yoon-Gon Ryu’s team and personalized skincare guidance. Patients receive a post-treatment recovery kit with medical-grade SPF 50+ sunscreen, vitamin C serum, and barrier repair cream. RE:BERRY also provides a detailed written aftercare protocol covering sun avoidance, product usage schedule, and when to report any concerns — critical for PIH patients where sun exposure can undo treatment progress.
Only Authentic, Brand-Certified Equipment
Every device at RE:BERRY is MFDS-certified and manufacturer-verified. We never use counterfeit or grey-market equipment.
Ready to Clear Your Post-Inflammatory Hyperpigmentation?
Book your PIH treatment consultation with Dr. Yoon-Gon Ryu or Dr. Yejin Oh at RE:BERRY Gangnam — 2 minutes from Gangnam Station Exit 10. Same-day appointments available, 365 days a year.
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