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Buyer specification series

Choose the curl. Define the product.

A six-part guide for lash brands and professional buyers who need to turn curl, diameter, length and tray choices into a production-ready brief.

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Technical overview of J, B, C, CC, D, L and L plus eyelash extension curl profiles

The buying principle

Do not select curl in isolation. The same product brief must also define diameter, length, fiber and finish, tray layout, packaging and approval sample.

  • Compare the same supplier
  • Approve a physical sample
  • Record every variable

Six-part series

From visual choice to factory brief.

Read in sequence for a complete buying workflow, or open the chapter that matches the decision you are making now.

  1. 01
    Curl foundation

    Lash Curl Guide: J, B, C, CC, D, DD, L and L+

    Compare the profile, lift and purchasing use of the standard curl options in our current range.

  2. 02
    Direct comparison

    C Curl vs D Curl: How to Choose

    Understand the difference without treating eye shape as the only decision factor.

  3. 03
    Special profiles

    Special Lash Curls: M, L, L+, S and A

    Learn how to brief less common profiles and why the physical sample matters.

  4. 04
    Size decisions

    Lash Thickness and Length Guide

    Choose diameter and length together for classic, volume, easy fan and premade ranges.

  5. 05
    Buyer template

    How to Write a Lash Specification Sheet

    Turn a product idea into a brief a factory can sample, quote and produce.

  6. 06
    Reference chart

    Lash Curl and Size Chart

    Use one quick reference for curl, diameter, length and tray decisions.

Current catalogue range

Start with confirmed product data.

Lashestar product records currently list standard curls J, B, C, CC, D, DD, L and L+, diameters from 0.03 to 0.25 mm on relevant lines, and lengths from 6 to 25 mm on relevant lines. Availability still depends on the exact product construction.

Special curl names and exact combinations are confirmed during the brief and sample stage because curl naming is not perfectly consistent between suppliers.

Browse eyelash extensions

Need a production answer?

Send the specification you are considering.

Miya Chen can confirm the available product route, sample requirement, packaging option and order details after reviewing the complete brief.

Discuss your lash specification