Bioflex - Flexible Body JewelleryWelcome to our Bioflex range including Bioflex flexible Barbells, flexible Belly Bars & flexible Labrets. Bioflex is a new flexible, biocompatible material which is very comfortable to wear & reduces the chance of allergic reactions to almost zero. Bioflex is a medical grade plastic and is an ideal material to wear during pregnancy. Clear Bioflex is also great for use as retainers. The bars of Bioflex Jewellery can be cut to size with a sharp blade & threaded with a steel ball.