Ellipse Flat Lash Extensions 0.15mm | Darker Lash Line & Better Retention

Same technique as round classics. Noticeably better results from day one.

0.15mm ellipse flat lash extensions — the most popular flat lash thickness. Fuller-looking than round 0.15mm classics, lighter in weight, with a stronger adhesive bond thanks to the flat ellipse base that sits flush against the natural lash root.

Why You'll Love It

• Darker lash line, less weight — the flat ellipse base sits flush against the root, creating a liner-like effect that round classic lashes can't replicate
• Stronger adhesive bond — wider contact surface means more adhesive grip and longer lash extension retention
• Same technique as round classics — no new skills required, just better results from day one for any lash artist
• Cashmere-like PBT fiber — ultra-soft texture with deep matte black pigment for a premium flat lash finish

Key Features

• Flat ellipse base — stronger bond and darker root effect than round classic lashes
• 0.15mm thickness — the most popular flat lash extension diameter
• Cashmere-like premium PBT fiber — ultra-soft, holds curl shape long-term
• Available in 4 curls: C, CC, D, DD
• Lengths from 8mm to 15mm, including 8–15mm mix trays for lash mapping
• Deep matte black — no shine, no plastic appearance
• FDA & CE certified — safe for professional salon use
• Cruelty-free, vegan lash extension materials

Best For

• Most clients wanting classic lash enhancement — the everyday flat lash workhorse
• Clients with fine or sparse lashes needing a darker, denser lash line
• Lash artists switching from round classics — same technique, better results
• Hybrid lash sets using flat lashes as the classic base layer
• Clients wanting a liner-like root effect without volume fans

Specifications

Compare Options — Flat Lash Extension Thickness Guide

How To Use

1. Prep — Cleanse natural lashes with Eyelash Primer to remove oils and maximize flat lash extension adhesion
2. Isolate — Use precision tweezers to isolate one natural lash before applying the flat lash extension
3. Pick up — Grip a single flat lash extension; the ellipse base faces down toward the natural lash
4. Dip — Dip the base into 0.5s Lash Glue — use minimal adhesive for a clean, precise bond
5. Apply — Place 0.5–1mm from the lash line, flat base flush against the natural lash, hold for 2–3 seconds
6. Cure — Use a nano mister to cure and seal the lash adhesive for maximum retention

Related Guides

• Flat Lashes vs Classic Lashes: Which Should You Use?
• Why Are My Lash Extensions Falling Out? How to Fix Retention Problems
• Lash Mapping Guide: How to Plan Length, Curl & Style for Every Eye Shape

Complete Your Classic Lash Kit

• 0.5s Lash Glue — Fast-bonding professional lash adhesive for classic and flat lash sets
• Eyelash Primer — Prep natural lashes for maximum flat lash extension retention
• Easy Fanning 0.07mm — Add volume fans for hybrid lash sets
• Lash Shampoo — Oil-free cleanser for lash extension aftercare

FAQ

What are ellipse flat lash extensions?

Ellipse flat lash extensions are classic lash extensions with a flat, oval-shaped base instead of a round base. The flat ellipse base sits flush against the natural lash root, creating a darker, liner-like effect at the lash line and a stronger adhesive bond — all with the same 1:1 application technique as round classic lashes.

What is the difference between flat lashes and classic round lashes?

Flat lash extensions have a flat ellipse base that provides more contact surface with the natural lash, resulting in a stronger adhesive bond, a darker root effect, and a fuller-looking lash line — all at a lighter weight than round classic lashes of the same thickness. The application technique is identical.

Do flat lash extensions apply the same way as round classics?

Yes — same technique, same lash adhesive. The flat ellipse base provides more contact surface for a stronger bond. No new skills required, making flat lash extensions an easy upgrade for any lash artist already working with classic lashes.

Are flat lash extensions suitable for sensitive clients?

Yes — the flat ellipse base is lighter than a round lash of the same 0.15mm thickness, reducing pressure on natural lashes. This makes flat lash extensions a good choice for clients with fine or fragile natural lashes who want a fuller-looking result.

Can I mix flat lashes with volume fans for hybrid sets?

Absolutely — use 0.15mm flat lash extensions as the classic base layer in a hybrid set and add Easy Fanning 0.07mm volume fans for texture and fullness. The darker root effect from the flat base makes the hybrid set look even more defined.

Shipping & Returns

Please note the following when returning purchased items. You may return unwanted items by mail within 60 days of receiving your order.

Liquid products are non-returnable and non-exchangeable.

We offer a 60-day return policy, meaning you can request a return within 60 days of receiving your item.

To be eligible for a return, your item must be in the same condition as when you received it—unworn or unused, with tags intact, and in its original packaging. You will also need to provide a receipt or proof of purchase.

To initiate a return, please contact us at info@swaniyalashes.com. If your return is approved, we will send you instructions on how and where to send your package. Unless the return is due to a product defect, the buyer is responsible for all return shipping costs. Items sent back to us without first requesting a return will not be accepted.

If you have any questions regarding returns, please feel free to contact us at info@swaniyalashes.com.

**Damages and Issues**
Please inspect your order upon receipt. If you discover that an item is defective or damaged, or if you received the wrong item, please contact us immediately so we can evaluate the issue and resolve it promptly.

**Exceptions / Non-returnable Items**
Certain types of items cannot be returned, such as perishable goods (e.g., food, flowers, or plants), custom products (e.g., special orders or personalized items), and personal care items (e.g., beauty products). We also do not accept returns for hazardous materials, flammable liquids, or gases. Please contact us if you have questions about the eligibility of a specific item.

Unfortunately, we cannot accept returns on sale items or gift cards.

**Exchanges**
To get the item you want as quickly as possible, we recommend following the return process for your current item; once the return is approved, simply place a separate order for the new item you wish to purchase.

**Refunds**
Once we receive and inspect your return, we will notify you immediately regarding the approval status of your refund. If approved, the refund will be automatically processed to your original payment method. Please note that it may take some time for your bank or credit card company to process and post the refund; we appreciate your understanding. Additionally, no refunds will be issued for returns or the destruction of goods resulting from *force majeure* events (such as failure to cooperate with customs clearance, refusal to pay duties, refusal to collect the package at the designated pickup point, war, or natural disasters).

You may request a return and refund within 60 days of purchase. Return shipping costs are the responsibility of the buyer. Returned items must be unused, in their original condition upon receipt, and include all original packaging.

Please ensure return items are securely packaged to prevent damage during transit. We are not liable for any loss or damage to returned items occurring during shipping.

If you have any questions, please consult us before purchasing. If an item is defective, please contact us within 60 days of receipt. We will arrange a replacement immediately upon receiving the defective item.
If you are not satisfied with the item you received, please feel free to contact us; we are committed to resolving any issues you encounter!
Once an item has shipped, we are not responsible for any damage or loss that may occur to the package during transit.

To cancel an order, please notify us before the order ships. We will confirm the cancellation with you via email or online chat. Refund requests will be processed within seven business days. Depending on your bank's processing speed, it may take 10 to 15 business days for the refund amount to appear on your account statement.

If the order has already shipped, you will receive a shipping status notification; in this case, you must return the package to us before a refund can be requested.
We will process the refund immediately upon receiving the returned package.
No refunds will be issued if goods are destroyed by customs due to reasons attributable to the buyer (e.g., refusal to cooperate with customs clearance, incorrect address, inability to be contacted, etc.). If goods are forcibly returned by customs, the buyer is responsible for both the return shipping costs and the original shipping costs. The specific shipping amount depends on the rates charged by your chosen courier service.

If the item you received is damaged or if a shipping error occurred due to our fault, the consumer will not be responsible for the resulting return shipping costs.