An ancient TCM scraping technique using a smooth, flat tool moved across the skin. Its main strength is release of facial and muscle tension, the gliding friction helps loosen adhesions between muscle and skin tissue. It's also associated with supporting circulation and lymphatic flow, which can bring a temporary de-puffed, refreshed look. Best suited for deeper, more targeted work, contouring the jawline, cheekbones, and areas of built-up tension.