“Flat false eyelashes 0.15/D/8-15 mm mash-up MIX” refers to a specific type of false eyelashes with certain characteristics designed for a particular look and application. Here’s a detailed explanation of each component:

Detailed Breakdown
Flat Lashes:

Design: Flat lashes, also known as ellipse or cashmere lashes, have a flattened base rather than the traditional round base of standard lash extensions. This shape allows for better attachment to the natural lash, providing a more secure bond.

Benefits: Flat lashes offer a fuller, thicker appearance with less weight. The flattened base provides a larger contact area for adhesion, making them feel lighter and more comfortable for the wearer. They also often have a split tip that creates a softer, more natural look.
Thickness (0.15 mm):

Medium Thickness: The 0.15 mm thickness is a standard choice for classic lash extensions, providing a noticeable yet natural enhancement. It is thicker than volume lashes (like the 0.07 mm ones) but not too heavy, striking a balance between fullness and comfort.

Versatile: Suitable for both natural and more dramatic looks depending on the number of extensions applied.
Curl Type (D Curl):

Dramatic Lift: The D curl provides a strong, upward curl, giving the eyes a wide-open, striking appearance. This curl type is more dramatic than J, B, or C curls.
Popular Choice: The D curl is particularly popular for creating a bold, glamorous look that enhances the eyes significantly.
Length Range (8-15 mm):

Natural Effect: The variation in lengths from 8 to 15 mm allows for creating a more natural, layered look. Shorter lashes can be applied towards the inner corners and longer ones towards the outer edges, mimicking the natural lash growth pattern.
Customization: Enables lash technicians to create customized looks tailored to the client’s eye shape and desired effect, from subtle to dramatic.
Mash-up:

Mixed Lengths: The term “mash-up” indicates that the set includes a mix of different lengths, providing versatility in creating various lash styles.
Layering and Texture: The mix allows for layering different lengths to achieve a textured and voluminous effect, enhancing the overall aesthetic of the lashes.
MIX Line:

Brand Identity: “MIX” could refer to a specific product line or collection within a brand, indicating a range of options that might include various lengths, curls, or types of lashes.
Quality and Variety: Products under the MIX line are likely designed to offer a variety of choices and high-quality materials to meet different customer needs.
Application and Use
Professional Use: These flat lashes are favored by professional lash technicians due to their improved adhesion, lightweight feel, and the ability to create fuller looks with fewer extensions.
Personal Use: Individuals applying them at home can benefit from their ease of use and the comfortable wear provided by the flat design.
Customization: The mixed lengths and dramatic curl allow for creating a wide range of styles, from natural enhancements to bold, glamorous effects, suitable for various occasions.