Alexa | Westchester Lash Training & Custom Lash Artist on Instagram: "Can we tell she’s been through this before 😂🔥 Any flame or heat that gets too close to a lash extension will absolutely melt it. Extensions are made from Polybutylene Terephthalate aka PBT aka a very fancy way to say plastic. And what do we know about plastic near heat? Everybody together now… IT. MELTS. 😭 When this happens it’s not just a little cosmetic issue. The lashes can fuse together, lose their curl, look stiff and