Does gua sha tool for face really work? Gua sha tool can be used all over the body, you will feel cooling and soothing when you glide on your body. It can help reduce puffiness, relieve tension in your muscles and boost blood circulation. It allows you skin to rejuvenate and boost elasticity. Tighten your skin. Use the curved side and glide it on your face with a slight pressure. It’s best to glide along the jawline in one direction, not back and forth. And you can also hold and press upwards between the brows to release tension. Relieve tension of muscles. Gua sha can be used on your face, body and scalp. Guasha has been used to promote healing by scraping muscles to stimulate blood flow, it means the gua sha can relax muscle tension and pains. V and pointed side. V side matches you chin, nose and eyebrow bone. you feel a migraine or headache creeping up on you, use your chilled gua sha to massage the tension areas of your face, such as your jaw, and then use the long edge to apply pressure over your forehead, above and below your brow bones and the area between your brows.The Guasha tool can be used as a Jawline sculptor to shape the jawline and reveal a beautiful face. It's an indispensable back to school supplies.