Jawline correction with cog threads uses dissolvable PDO (polydioxanone) threads with barbs (cogs) inserted under the skin to lift sagging tissue, creating an immediate contour improvement and stimulating new collagen for firmer, defined skin over time, offering a non-surgical alternative to facelifts with minimal downtime. The cogs grasp the skin to provide lift, while collagen production around the threads rejuvenates the area, with results lasting typically 1-2 years.