Many of HFT’s false eyelashes are made from Korean PBT. What is Korean PBT?   

This material traditionally developed in Korea, is a synthetic semi-crystalline engineered thermoplastic. Korean PBT is a high-performance material, composed of a large molecular weight and a reputation for being extremely strong, flexible, and resilient.

Korean PBT creates natural-looking lashes with a beautiful soft, glossy sheen that doesn't lose curl. Korean PBT is a hypoallergenic material, meaning it reduces any risk of an allergic reaction on the human skin compared to other eyelash extension materials. These raw materials can hold heat better, maintaining their curl without disruption.

While you may not have heard of the term Korean PBT, you would've heard of synthetic silk or synthetic faux mink lashes. These are names manufacturers have come up with to make Korean PBT sound more appealing.

Raw PBT is a much more expensive material compared to that of other areas made lash materials. This cheaper form of lash material is lower in quality, additional bulking agents are added to produce a larger quantity, therefore increasing the risk of an allergic reaction from the additional chemicals.

Due to this, these materials are less inclined to hold heat and can easily lose curl, are stiff/rigid, and can snap off. Other areas made lash materials are a lot cheaper to purchase compared to raw Korean PBT lash materials, so if purchasing, keep an eye out for this.