Iolite Eco U 3D Lashes – 0.07mm B Curl Mix Tray (8–15mm) | Korean PBT Fiber Cluster-Style Lash Extensions.
What Are Iolite Eco U-3D Lashes?
The Iolite Eco U 3D Lashes – 0.07mm B Curl Mix Tray (8–15mm) are professional cluster-style eyelash extensions crafted from premium Korean PBT fiber, designed for lash artists who want natural-looking volume with significantly faster application. Available in a 0.07 mm D-curl mixed tray, these handwoven lashes form a U-shaped fan with uniform-height tips and flat roots — delivering a soft, natural, fluffy finish that sits seamlessly along the lash line.
Unlike traditional individual classic extensions, the U-3D cluster format groups three strands into one cohesive unit, giving the eye a naturally voluminous appearance without the bulk or weight of heavier multi-dimensional fans.
Product Specifications
- Brand: Iolite Eyelash Architecture
- Product Name: Eco U-3D Lashes
- Material: Korean PBT Fiber
- Diameter: 0.07mm
- Curl: B Curl
- Style: 3D U-Shape Cluster
- Construction: Handwoven
- Root Type: Flat Roots
- Tip Style: Uniform-Height Tips
- Tray Type: Mix Tray
- Lengths Included: 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm
- Use: Professional Only
Key Features of Iolite Eco U 3D Lashes – 0.07mm B Curl Mix Tray (8–15mm)
Cluster-Style Extensions for Natural Eye Makeup Effect
The U-3D format replicates the soft, natural appearance of well-applied eye makeup. Each cluster creates a subtle, layered volume that looks like your client was simply born with beautifully full lashes — not a dramatic or overdone finish.
Classic Extension Technique, 30%+ Faster Application
Built on a classic lash extension foundation, the U-3D cluster dramatically reduces application time compared to applying individual lashes one by one. Lash artists report over 30% faster grafting speed without any compromise on the final result.
Handwoven Construction for Consistent Quality
Every cluster is handwoven, ensuring precise strand alignment, consistent fan spread, and a uniform finish across the entire tray. No two clusters look uneven — the handwoven technique guarantees reliable symmetry from the first lash to the last.
U-Shaped Fan for Soft, Natural Volume
The U-shape is a gentler, more open curve than the W-shape — creating a soft, blooming fan that adds natural fluffiness without excessive spread. The result is a lash line that looks full and dimensional without appearing artificial.
Uniform-Height Lash Tips
All three strands in each cluster reach the same height, creating a clean, even tip line across the lash set. This eliminates the uneven, spiky appearance that can occur with lower-quality volume fans and contributes to the natural, polished finish.
Flat Roots for Seamless Bonding
The flat root design increases the surface area at the lash base, improving adhesive contact and bonding strength. Flat roots also sit flush against the natural lash, creating a smoother, more comfortable attachment that clients can barely feel.
Root Bonding Technology for Natural Eyeliner Definition
Advanced root bonding compresses the base of each cluster into a defined, dark point at the lash line — creating a natural eyeliner-like definition without any makeup. Eyes look defined and polished from the very base of the lash.
Easy to Use and Time-Saving
The U-3D lashes is designed with efficiency in mind. The flat root, uniform tips, and U-shaped structure all work together to make pickup, placement, and bonding faster and more intuitive — even for artists earlier in their lash career.
Performance Ratings
Grafting Speed: 50% faster than individual classic application
Curl Stability: 60% improved curl retention
Natural Fluffiness: 70% more natural volume appearance
How to Apply Iolite Eco U 3D Lashes – 0.07mm B Curl Mix Tray
Step 1 — Pick Up the Cluster
Using your lash tweezers, grasp the flat root of the cluster from the strip. The flat root base provides a stable, secure grip that makes pickup clean and consistent.
Step 2 — The U Shape Is Ready
The handwoven U-shaped cluster comes ready to apply the moment it leaves the strip. Uniform-height tips mean no adjustment or repositioning is needed before placement.
Step 3 — Apply to the Natural Lash
Place the flat root flush against the isolated natural lash. Root bonding technology ensures a secure, defined attachment at the lash line with a natural eyeliner-like finish.
Easy to Use and Time-Saving
The Iolite Eco U-3D Lashes is one of the most beginner-accessible cluster-style extensions on the market. The flat root structure means less fumbling during pickup, and the pre-formed U shape means there is zero shaping or adjustment required between picking up and placing down. For experienced artists, this translates to significantly shorter appointment times. For newer artists, it means professional results are achievable much earlier in their training.
Why Flat Roots Make a Difference
- Flat roots are a significant technical advantage over round or tapered roots in cluster-style extensions. Here’s why lash artists prefer them:
- Better adhesive contact — the flat surface gives the glue more area to bond to, improving retention and reducing premature shedding.
- Smoother lash line — flat roots sit flush against the natural lash rather than creating a raised or bumpy base, resulting in a cleaner, more comfortable finish.
- Faster application — the consistent flat base makes placement more predictable, reducing the micro-adjustments that slow down application time.
- More natural appearance — a flat root blends into the natural lash line more seamlessly than a rounded or bulky base.
Why 0.07mm Thickness Works Perfectly for 3D Cluster Extensions
At 0.07mm, each individual strand is ultra-fine and lightweight. In a 3D cluster, three strands at 0.07mm grouped together remain light enough to sit comfortably on the natural lash without causing stress or premature shedding. This makes the U-3D an excellent choice for:
- Clients with fine or sparse natural lashes
- First-time lash extension clients who want a gentle introduction to volume
- Clients who want a natural result without the weight of higher-dimension fans
- Maintenance fills where a lighter touch is needed
B Curl — Natural Lift Closest To Natural Lash Angle
B Curl offers the most natural, subtle lift available in the U-3D range. It follows the natural upward angle of the lash closely, making the extensions blend seamlessly with the client’s own lashes. In the soft U-3D cluster format, B curl creates a barely-there enhancement that looks like naturally healthy, full lashes. B curl U-3D is ideal for clients who prefer an everyday, natural finish, clients with naturally upward-angled lashes, Asian lash styling where a soft natural look is preferred, and first-time lash clients who want the most subtle introduction to extensions.
Mix Tray — 8mm to 15mm in One Tray
The mix tray format means every length you need for a complete lash map is already in one box. No switching trays mid-set, no hunting for the right length.
- 8mm–9mm Inner corner
- 10mm–11mm Inner to mid section
- 12mm–13mm Mid to outer section
- 14mm–15mmOuter corner for dramatic lift
Storage and Professional Use
Storage: Keep in a cool, dry place away from direct sunlight. Humidity and heat can affect the fiber’s curl memory and the integrity of the woven base. Store with the tray closed when not in use.
Caution: For professional use only. Keep out of reach of children. Perform a patch test for clients with adhesive or fiber sensitivities before proceeding with a full application.
Explore More Beauty Essentials
Iolite, recognized as the best lash brand and premier lash academy in Dubai, offers everything you need for flawless brows and lashes. Iolite offers everything you need for flawless brows and lashes. Complete your beauty routine with our curated range of must-haves — from eyelashes for lash extensions and brows for brow extensions to tweezers, lash & brow care, and professional lash glues and accessories.
Don’t forget to check out our full range of UV Lash Extension Products — from lash adhesives and primers to UV lamps — designed to help you achieve long-lasting, beautiful lash extensions every time.
For beauty lovers and professionals alike, we also provide expert-led beauty training courses, such as eyelash extension courses, brow extension course, UV Lash Extension Course to help you perfect your skills.
The Iolite Lashes Professional Eyelash Extensions are exclusive for lash professionals! Click HERE for more information about eyelash extension training!
Contact us for more details, Iolite Eyelash is a part of BSI Cosmetics, Brunson Nail Academy & Beauty Secret Aesthetic Clinic.
Frequently Asked Questions — Iolite Eco U-3D Lashes
What is the difference between U-3D and regular individual classic lashes?
Individual classic lashes are applied one extension per one natural lash. The U-3D cluster groups three strands into a single unit, giving a naturally voluminous result with significantly faster application — over 30% quicker than classic one-by-one application.
Why are flat roots better for cluster-style extensions?
Flat roots increase the bonding surface area between the extension and the natural lash, improving adhesive contact and retention. They also sit flush against the lash line for a smoother, more comfortable, and more natural-looking finish.
What does uniform-height tips mean and why does it matter?
Uniform-height tips means all three strands in each cluster reach the same length at the tip. This creates a clean, even lash line without any jagged or uneven ends — giving the set a polished, professional finish.
Is the U-3D suitable for clients new to lash extensions?
Yes. The 3D cluster format and 0.07mm thickness keep the extensions lightweight and natural-looking, making them an excellent first lash extension experience for clients who want subtle volume without dramatic change.
Can beginner lash artists use the Eco U-3D?
Yes. The flat root makes pickup straightforward, and the pre-formed U-shape means no adjustment is needed between pickup and placement. The consistent structure makes the learning curve significantly easier compared to handmade volume fans.
What lengths are in the mix tray?
The mix tray contains 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, and 15mm — everything needed for a complete lash map in a single tray.








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