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How Thick Should Lash Extensions Be?

Eyelash extensions are one of the best beauty inventions for people with super-thin, straight, or stubby lashes. While mascaras and falsies can create thicker-looking lashes, their results are temporary and unrealistic. Compared to them, lash extensions provide more natural-looking and long-lasting results.

But to achieve your desired lash flutter, the extensions’ length, curl, and thickness must be right. Knowing these details will help you get more realistic results instead of a fake-looking dramatic flair.

What Does Thickness of Lash Extensions Mean?

Typically, a lash extension has three primary attributes:

  • Curl – how curly it is

  • Thickness – what’s its diameter

  • Length – how long it is

When it comes to the thickness of a lash extension, it means how wide it is in diameter, and it is always measured in millimeters (mm). The higher the diameter, the thicker the extension. Using different thicknesses, you can create a natural, classic, or dramatic look.

Eyelash extension thicknesses range from 0.03mm to 0.25mm, and the most commonly requested thickness is 0.15mm or 0.20mm. What’s more, you can create a customized thickness by mixing extensions of different diameters to create a hybrid.

Different Eyelash Extension Thicknesses

Eyelash extensions are available in the following thicknesses:

  • 0.03mm

  • 0.05mm

  • 0.06mm

  • 0.07mm

  • 0.10mm

  • 0.12mm

  • 0.15mm

  • 0.16mm

  • 0.20mm

  • 0.25mm

What Is the Best mm for Lash Extensions?

Extensions with different diameters are used for achieving various lash looks.

Classic Lashes

With classic lash extensions, you can achieve a more natural look. They usually have a thickness of 0.15mm and work well with thin and thick natural lashes.

Volume Lashes

If you want more volume and thickness, volume lash extensions are the right choice. These extensions have a thickness of 0.03mm to 0.10mm.

Mega Volume Lashes

For the ultra-dramatic flutter, mega volume lash extensions are often used. They have a thickness of 0.03, 0.05, and 0.07mm.

Hybrid Lashes

In hybrid lash extensions, different thicknesses are used to achieve the desired fullness. These often combine 0.15mm with 0.03mm to 0.10mm for a more customized flutter.

How to Choose the Right Lash Extension Thickness?

The diameter of your eyelash extension depends on the following factors:

Condition of Natural Lashes

The first thing that affects the choice of lash extension thickness is your natural lashes. Thicker lash extensions are heavier and fall out quickly. They also put more strain on natural lashes and may cause breakage if you have naturally thin lashes.

Your Desired Look

How you want your lashes to look is another factor influencing this decision. Although experts recommend getting lighter extensions that align with your natural lashes, you can make bold choices.

Application Technique

Every lash extension expert uses a different application technique from classic, volume, and hybrid techniques. So, they choose the lash thickness that works well with the method of their choice.


Lash extensions are available in various thicknesses and choosing the right lash extension diameter depends on multiple factors. However, most experts prefer lighter extensions between 0.05mm and 0.07mm. These diameters help achieve the most natural-looking results without weighing down your natural lashes.

If you're planning to get your lashes done, consider booking the services of a premium lash salon, like Laveda Lash & Brow. Our expert lab techs will ensure you get the right kind of lash extensions and are satisfied with the results!

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