The PDO screw 26G-38MM is a spiral lifting thread, known as tornado wires or screw threads for wire lifting.
Instead of straight soft threads, it is doubled and twisted screwed around the microneedle, which gives a more strengthening effect by tightening the tissue.
Type of thread: PDO - Polydioxanone.
This material is normally used by surgeons for sewing together soft tissues. It does not cause any allergic reactions, and it is not toxic.