The K-Beauty eye patch that goes beyond the under-eye. 360° full coverage from eyelid to smile line — formulated with Caffeine 5,000 ppm + Copper Tripeptide-1 + Adenosine + Niacinamide 2%, clinically tested to reduce eye bags by 25.3% after just one use.

Dear Klairs Blue Caffeine Full Cover Eye Patch — 360° Full Coverage, Not Just Under-Eyes. One patch firms the entire eye area, from eyelids to smile lines.
TL;DR: The Dear Klairs Blue Caffeine Full Cover Eye Patch is a 360° full-coverage hydrogel eye patch — clinically tested at P&K Skin Clinical Research Center to reduce eye bags by 25.3% after one use, improve skin circulation by 33.5%, and reduce dark circles by 33.3% after 8 weeks. With an irritation index of 0.00 and a formula built around Caffeine 5,000 ppm, Niacinamide 2%, Copper Tripeptide-1, Adenosine, and 4GF, it covers all four eye zones — Eyelid, Crow's Feet, Under-Eye, and Smile Line — in a single application.
Key Takeaways:
- 🔵 360° full coverage — Eyelid, Crow's Feet, Under-Eye, and Smile Line in one patch
- 📊 Clinically tested — P&K Skin Clinical Research Center, 20 subjects; measurable results from a single use
- 🧪 Irritation Index: 0.00 — fragrance-free, suitable for sensitive eye area skin
- 💡 Multi-active formula: Caffeine 5,000 ppm + Niacinamide 2% + Copper Tripeptide-1 10 ppm + Adenosine + 4GF
- 📦 MSRP: KRW 25,000 / USD 22.00 | 80g / 60 patches (15 pairs)
The Real Story Behind This Eye Patch
Most eye patches on the market do one thing: cover the under-eye. It's a format that hasn't fundamentally changed in years — a half-moon shape, placed under the eye, removed after 20 minutes. Effective for what it targets. But the eye area is more than just the under-eye.
The eyelid creases when you smile. Crow's feet form at the corners. Smile lines extend downward. These zones age at the same rate as the under-eye — but most patches leave them completely untouched.
The Dear Klairs Blue Caffeine Full Cover Eye Patch was built around a different premise: 360° FULL COVERAGE, NOT JUST UNDER-EYES. A single application — using two purpose-designed pieces — wraps the entire eye area across four distinct zones: Eyelid, Crow's Feet, Under-Eye, and Smile Line.
For K-Beauty buyers, this represents a genuine category upgrade: the same familiar eye patch ritual, now delivering full-picture results your customers can actually see.
Why the Eye Care Market Is Ready for This
The global eye care skincare segment continues to outpace the broader skincare category, driven by consumers increasingly treating the eye area as a dedicated skincare zone — not an afterthought. The eye patch category in particular has seen sustained growth on platforms like Qoo10, Amazon, and Olive Young, where multi-concern eye care products consistently outperform single-benefit formats.
The gap in the current market: a clinically tested, full-coverage eye patch that simultaneously addresses puffiness, dark circles, fine lines, and firmness — across all four eye zones — with a formula gentle enough for daily sensitive-skin use.
That gap is exactly what the Blue Caffeine Full Cover Eye Patch is designed to fill.
Product Overview
In one line: A 360° full-coverage hydrogel eye patch that targets puffiness, dark circles, and fine lines across the entire eye area — from eyelid to smile line — with a clinically tested, 0.00 irritation index formula. Effective but Gentle.
| Item | Details |
|---|---|
| Volume | 80g / 60 patches (15 pairs) |
| MSRP | KRW 25,000 / USD 22.00 |
| Key Ingredients | Caffeine 5,000 ppm, Niacinamide 2%, Copper Tripeptide-1 10 ppm, Adenosine, 4GF (EGF+FGF+IGF+TGF) |
| Coverage | 360° — Eyelid, Crow's Feet, Under-Eye, Smile Line |
| Best For | Puffiness, dark circles, fine lines, firmness — all skin types including sensitive |
| Patch Format | 2-piece per eye: large patch (eyelid + crow's feet + under-eye) + small patch (smile line) |
| Certifications | Irritation Index 0.00 / Fragrance-free / Human Patch Test Complete |
Why "Caffeine + Peptide + Niacinamide"? — The Science Behind 360° Eye Care

The Puffiness–Circulation Connection
Eye puffiness is primarily a vascular issue — fluid accumulation and sluggish microcirculation beneath the delicate under-eye skin. Caffeine at 5,000 ppm addresses this at the source: as a vasoconstrictor, it temporarily narrows blood vessels, reduces fluid retention, and visibly decreases puffiness. The clinical result: Eye Bags ▼ 25.3% after just one use, and Skin Circulation ▲ 33.5% after one use — both measured at P&K Skin Clinical Research Center on 20 subjects.
The Dark Circle–Melanin Connection
Dark circles have two primary causes: vascular (bluish discoloration from blood pooling) and pigmentary (melanin accumulation). Caffeine addresses the vascular type; Niacinamide at 2% addresses the pigmentary type — supporting melanin reduction and brightening the under-eye area over continued use. The clinical result: Dark Circles ▼ 33.3% after 8 weeks.
The Firmness–Collagen Connection
The skin around the eye is the thinnest on the face — it loses collagen faster and shows aging earlier. Copper Tripeptide-1 at 10 ppm signals the skin to produce more collagen and elastin, firming and thickening the peri-orbital skin across all four coverage zones. Adenosine supports skin elasticity and helps reduce the appearance of fine lines. The 4GF complex (EGF, FGF, IGF, TGF) supports broader skin regeneration and elasticity across the full coverage area.
360° Coverage: What Each Zone Delivers

Most eye patches address one zone. The Blue Caffeine Full Cover Eye Patch addresses four — in a single application:
| Eye Zone | Targets | Clinical Result |
|---|---|---|
| ① Eyelid | Wrinkles + Firmness | Wrinkles ▼ 11% / Firmness ▲ 14.3% |
| ② Crow's Feet | Wrinkles + Density | Wrinkles ▼ 13.2% / Density ▲ 9.2% |
| ③ Under-Eye | Fine Lines + Density | Fine Lines ▼ 15.0% / Density ▲ 12.4% |
| ④ Smile Line | Wrinkles | Wrinkles ▼ 15.9% |
The structural innovation is in the two-piece design: a large patch shaped to wrap the upper and lower eye area (eyelid, crow's feet, under-eye), plus a separate smaller patch for the smile line — a zone that conventional eye patches cannot physically reach.
¹ Clinical test by P&K Skin Clinical Research Center, 20 subjects. Individual results may vary.
Ingredient Deep-Dive

| Ingredient | Concentration | Role | Key Benefit |
|---|---|---|---|
| Caffeine | 5,000 ppm | Vasoconstriction + circulation | Eye bags ▼ 25.3% (after 1 use)¹ |
| Niacinamide | 2% | Melanin reduction + barrier | Dark circles ▼ 33.3% (8 weeks)¹ |
| Copper Tripeptide-1 | 10 ppm | Collagen synthesis signal | Firmness ▲ 14.3% (Eyelid)¹ |
| Adenosine | — | Elasticity + fine line reduction | Supports wrinkle improvement |
| 4GF Complex | — | EGF+FGF+IGF+TGF — skin renewal | Multi-zone elasticity support |
What is Caffeine in Korean eye patches? At 5,000 ppm, topical caffeine functions as a vasoconstrictor — temporarily narrowing blood vessels to reduce fluid accumulation and the bluish discoloration of dark circles. It's one of the most well-researched actives for the peri-orbital area.
What is Copper Tripeptide-1? Also known as GHK-Cu, it signals fibroblasts to increase collagen and elastin production. Particularly effective for thin, delicate skin — making it well-suited to the eye area, where collagen loss is most visible earliest.
What is Adenosine in skincare? A naturally occurring compound that supports skin elasticity and has been shown to help reduce the appearance of fine lines and wrinkles — a well-established active in Korean skincare formulations.
What is 4GF? A complex of four growth factors — EGF (Epidermal Growth Factor), FGF (Fibroblast Growth Factor), IGF (Insulin-like Growth Factor), and TGF (Transforming Growth Factor) — that collectively support the skin's natural renewal, regeneration, and elasticity processes.
Clinically Tested — The Data Your Buyers Need
Full human application testing completed.
Institution: P&K Skin Clinical Research Center | Subjects: 20 participants
👁️ De-Puffing & Brightening
| Clinical Metric | Result | Timeframe |
|---|---|---|
| Eye Bags reduction | ▼ 25.3% | After 1 use |
| Skin Circulation improvement | ▲ 33.5% | After 1 use |
| Dark Circles reduction | ▼ 33.3% | After 8 weeks |
📐 Wrinkle & Firmness by Zone
| Zone | Metric | Result |
|---|---|---|
| ① Eyelid | Wrinkles | ▼ 11% |
| ① Eyelid | Firmness | ▲ 14.3% |
| ② Crow's Feet | Wrinkles | ▼ 13.2% |
| ② Crow's Feet | Density | ▲ 9.2% |
| ③ Under-Eye | Fine Lines | ▼ 15.0% |
| ③ Under-Eye | Density | ▲ 12.4% |
| ④ Smile Line | Wrinkles | ▼ 15.9% |
¹ Results from human application tests conducted by P&K Skin Clinical Research Center, 20 subjects. Individual results may vary.
Safety & Certifications
| Safety Test | Result | Details |
|---|---|---|
| Skin Irritation Index | 0.00 | Human patch test — P&K Skin Clinical Research Center |
| Primary irritation test | ✅ Passed | — |
| Sensitive-skin irritation test | ✅ Passed | — |
| Fragrance-free formula | ✅ Confirmed | No added artificial fragrance |
With an irritation index of 0.00 and a fully fragrance-free formula, the Blue Caffeine Full Cover Eye Patch is confidently recommendable to even the most sensitive eye area skin types — including post-procedure or reactive skin.
How to Use — Guide Your Customers

Step 1 — Place large patches around eyes, adjust with the front-cut.
Step 2 — Apply small patches to smile lines.
Step 3 — Remove after 20–30 min.
💡 Tip: Refrigerate before use for an extra cooling and de-puffing effect.
Usage Tips by Situation
| Situation | Recommendation |
|---|---|
| Morning puffiness | Apply immediately after cleansing — before any other skincare |
| Pre-event prep | Use the night before + refrigerate for maximum de-puffing |
| Sensitive skin days | Patch test on inner arm before first use |
| Post-travel fatigue | Refrigerated patches + 30-minute application |
Blue Line Routine — A Built-In Cross-Sell Opportunity
The Blue Caffeine Full Cover Eye Patch was formulated as part of the Dear Klairs Blue Line — a range built around the same core philosophy of Effective but Gentle care for sensitive skin. Each product in the Blue Line is designed to work synergistically with the others.
| Product | Core Focus | When to Use |
|---|---|---|
| Blue Youth Activating Drop | Sensitive-skin intensive serum care | AM & PM — concentrated home care |
| Blue Caffeine Full Cover Eye Patch | 360° eye area — puffiness, dark circles, fine lines | 2–3x per week, AM or PM |
| Blue Calming Cream | Finishing moisture & barrier seal | Final AM & PM step |
The buyer opportunity: customers who purchase the Blue Drop naturally flow into the Eye Patch for targeted eye care; Eye Patch customers naturally flow into the Cream for barrier finishing. One SKU introduction leads to three sales.
Frequently Asked Questions
Q. What makes the Dear Klairs Blue Caffeine Full Cover Eye Patch different from other Korean eye patches?
A. Most Korean eye patches are half-moon shaped and cover only the under-eye area. The Blue Caffeine Full Cover Eye Patch uses a two-piece design to cover all four eye zones — Eyelid, Crow's Feet, Under-Eye, and Smile Line — in a single application. Clinically tested at P&K Skin Clinical Research Center to reduce eye bags by 25.3% after one use and dark circles by 33.3% after 8 weeks, with an irritation index of 0.00.
Q. What does Caffeine at 5,000 ppm do in an eye patch?
A. Caffeine is one of the most well-researched actives for the peri-orbital area. As a vasoconstrictor, it reduces fluid accumulation and dark circle discoloration. At 5,000 ppm, the Blue Caffeine Eye Patch delivers caffeine at a concentration positioned at the higher end of effective topical dosing — making the "after 1 use" de-puffing result clinically measurable (Eye Bags ▼ 25.3%).
Q. Is the Blue Caffeine Full Cover Eye Patch safe for sensitive skin?
A. Yes. The product carries an irritation index of 0.00 from human patch testing at P&K Skin Clinical Research Center, is fragrance-free, and has passed both primary and sensitive-skin irritation tests. It is suitable for daily use on even the most reactive eye area skin types.
Q. How does this eye patch fit into a full Dear Klairs Blue Line routine?
A. ① Blue Youth Activating Drop (AM & PM, home) — intensive sensitive-skin serum care → ② Blue Caffeine Full Cover Eye Patch (2–3x per week) — 360° eye area treatment → ③ Blue Calming Cream (AM & PM, home) — finishing moisture and barrier seal.
Q. What is Copper Tripeptide-1 and why is it in an eye patch?
A. Copper Tripeptide-1 (GHK-Cu) signals fibroblasts to produce collagen and elastin. The eye area is where collagen loss becomes visible earliest — making a peptide at 10 ppm in a leave-on hydrogel patch an effective delivery format for firmness improvement across all four coverage zones (Eyelid Firmness ▲ 14.3%).
Q. What is Adenosine and what does it do for the eye area?
A. Adenosine is a naturally occurring compound used in Korean skincare formulations for its ability to support skin elasticity and reduce the appearance of fine lines and wrinkles. In the Blue Caffeine Full Cover Eye Patch, it works alongside Copper Tripeptide-1 and 4GF to support multi-zone firmness improvement.
Q. Can this eye patch be used every day?
A. The product is formulated for regular use, with an irritation index of 0.00 and a fragrance-free, hypoallergenic formula. For best results, 2–3 applications per week are recommended. Refrigerating the patches before use enhances the cooling and de-puffing effect.
Explore a Related K-Beauty Eye Care Product
Looking to build a complete eye care lineup for your store?
The Blue Caffeine Full Cover Eye Patch pairs naturally with the Dear Klairs Blue Youth Activating Drop — the cult-status sensitive-skin serum that shares the same Blue Line philosophy and is used as the at-home daily base for the same eye area concerns.
👉 Dear Klairs Blue Youth Activating Drop
We're Actively Looking for Global Partners
We work with distributors, retailers, and online sellers across 80+ countries and are actively seeking new partners for the Dear Klairs Blue Caffeine Full Cover Eye Patch and the full Dear Klairs Blue Line.
Our global partnership at a glance:
- ✅ Distribution in 80+ countries worldwide
- ✅ 10,000+ online and offline retail partners globally
- ✅ EU CPNP certification complete — ready to sell in Europe immediately
- ✅ European logistics hub (Poland) — reliable, fast delivery to EU markets
- ✅ Quarterly sales data sharing + reorder forecasting support
- ✅ Priority access to new Korean skincare product launches for active partners
Our Ideal Partners
We're looking for K-Beauty specialty retailers, drugstores, and beauty concept stores ready to grow with us. If you're a buyer looking to strengthen your eye care, anti-aging, or sensitive skin category, operate in markets where K-Beauty eye care is trending, run online channels on Amazon, Shopee, or Qoo10, or simply want to get ahead of the full-coverage eye patch trend — we'd love to connect.
What Partners Receive
| Package | What's Included |
|---|---|
| 📋 Clinical & Marketing Assets | Full ingredient & clinical documentation · Consumer education guides · SNS content templates & visuals |
| 🧴 Sample Program | Trial samples for buyer review & in-store consumer testing · Seasonal promotion support |
| 📦 Flexible MOQ | Tailored minimum order quantities — from boutique retailers to large-scale distributors |
| 🤝 Dedicated Account Manager | WishCompany contact from onboarding through operations · Inventory management · Trend briefings |
Want to Learn More About Stocking Klairs?
Read our full K-Beauty B2B Wholesale Guide →
7 Reasons Your K-Beauty Shop Must Stock Klairs
Effective but Gentle. That's the standard Dear Klairs holds for every product in the Blue line — and this eye patch is no exception.
¹ Clinical test by P&K Skin Clinical Research Center, 20 subjects. Individual results may vary.