Intraline Spiral Threads are polydioxanone (PDO) sutures used when performing a thread lift. These threads are made of a filament that is wound around the needle. This product has been shown to provide superior lifting and holding effects for the face. It provides structural support. This product lifts and tightens sagging skin tissues by inducing collagen production. The result is rejuvenated skin. PDO threads are implanted into the subcutaneous layer of the skin. The manufacturer of this product is Mecobi.