Based on the Chinese Medicine technique, facial Gua Sha tools are meant to be used in a gentler manner. This smooth-edged, black obsidian iteration from Alder New York is perfectly shaped to work over the various grooves of your face—from your chin and jaw to cheeks and forehead. After cleansing and applying oil or serum, simply work the tool gently over your face from the center outward. The outcome should not only reduce puffiness and wrinkles, but also accentuate the angles of your cheekbones and jawline. It can also be useful in relieving aches and tension caused by TMJ. Black obsidian itself is believed to help release negativity and offer protection.