The cog thread is essentially mono threads with barbs to hook to the underside of the skin. The barbs form a support structure that lifts the sagging tissue. Unlike mono threads, cog threads do not need anchoring points. The threads lifting is a new and effective medical technique for lifting and tightening the skin of the face and neck. This treatment contours the face and stimulates the production of collagen. cog thread is very effective and meant for cosmetic industry.