Despite their name, most "mink lashes" are made of a synthetic material called PBT. PBT (or Polybutylene terephthalate) is a type of polyester used in a range of products including toothbrushes, sports and swim wear, and—of course—false lashes. PBT is highly resistant to environmental changes and solvents, has a low shrinkage rate and high heat resistance.
All of our synthetic lashes are made from premium quality Korean PBT fiber, a superior material demonstrating high consistency in ductility and elastic recovery. These are properties which help us make lashes with highly accurate colors and curls.