What is PBT?

PBT  (polybutylene terephthalate), is a synthetic semi-crystalline engineered thermoplastic. A high-performance material, it has a high molecular weight and a reputation for being a strong, flexible and resistant plastic.

PBT creates natural looking lashes with a gorgeous soft and glossy sheen which doesn’t lose its curl. Not only this, but PBT causes the least chance of an allergic reaction on human skin compared with all other eyelash extension materials.