Flat Eyelash Extensions – Ellipse Hollow Lashes for Lash Artists

Fadlash flat eyelash extensions feature an ellipse-shaped, hollow core that makes each lash 47% lighter than a standard round extension. The wider, flat base bonds over more surface area — boosting retention and creating a soft eyeliner effect that fills gaps along the natural lash line. Choose from C, D, L, and M curls in 0.15mm and 0.20mm thickness across lengths from 8mm to 16mm, including a mixed 8–14mm tray for full mapping versatility. Trusted by 10,000+ lash artists since 2016.

Flat Eyelash Extensions – Buyer's Guide

Flat eyelash extensions — also called ellipse lashes or cashmere lashes — are designed with an oval, hollow base instead of the traditional round cross-section. This structural difference makes them significantly lighter than standard lash extensions, reducing strain on the natural lash while still delivering a bold, dramatic result. Because the flat base covers more contact area, adhesive bonds more effectively, which means longer retention and fewer touch-ups between fills.

Who Are Flat Lashes Best For?

Flat lashes are especially well-suited for clients with fine, thin, or weak natural lashes that struggle to hold classic round extensions. The lighter weight means less stress on each natural lash during the grow-out cycle. Lash artists also use flat lashes to create a subtle eyeliner effect — the wide base fills the gaps between natural lashes, giving the appearance of a denser, darker lash line without adding extra fans or layers.

Choosing the Right Curl and Thickness

Fadlash flat lashes are available in C and D curls. C curl gives a natural-to-lifted look suited to most eye shapes; D curl delivers a more dramatic, open-eyed effect preferred for cat-eye or doll-eye sets. For thickness, 0.15mm is the standard choice for a classic-weight flat set, while 0.20mm adds more visible density and is better suited to clients with stronger natural lashes. Both diameters are available across lengths from 8mm to 16mm, with a mixed 8–14mm tray for full-eye mapping in a single tray.

Flat Lashes vs. Classic Lashes

The key difference is weight and base shape. Flat lashes use the same 1:1 application technique as classic lashes, so no retraining is required — just swap the tray. The ellipse hollow core means each extension is lighter per lash than a round classic of the same thickness, making flat lashes a smart upgrade for retention-focused artists.

Wholesale & Bulk Orders

Fadlash flat lash extensions are available at wholesale pricing for orders of 40 trays or more. Consistent curl memory, matte deep-black finish, and 100% imported PBT fiber make these a reliable choice for high-volume salons and lash supply resellers. Contact us for wholesale pricing →