Eyelash extensions come in a variety of materials, including mink, silk, synthetic, human hair, and horse hair. The most common method for applying extensions is to use a cyanoacrylate adhesive to attach them to the natural eyelash, 1 or 2 mm away from the base. Synthetic eyelash extensions are made of a soft plastic called polybutylene terephthalate (PBT). This plastic is heated and molded to obtain the desired curl that hardens as it cools.
The lowest grade of eyelash extensions are synthetic plastic eyelashes, which are usually made of PBT. These are the lashes you can find in the pharmacy and they tend to be heavy and look unnatural. Mink lashes (whether they are extensions or false eyelashes) come from Siberian mink or Chinese mink tail, as they are soft and light. Synthetic silk eyelashes are not made of 100% silk, but rather a combination of materials that gives them a silky, shiny appearance and semi-gloss finish.
Mink lashes cost more than other types of eyelash extensions and are not as thick, long, or dramatic. Silk lashes are tapered for most of the body and up to 30% lighter than a silk eyelash extension. They also have a thick, full body and are best for dramatic ensembles. Currently, no manufacturer on the market can produce eyelash extensions made from human hair.
Sugarlash PRO mink eyelash extensions have a natural semi-matte finish that mimics the appearance of natural eyelashes and an extremely lightweight body.