Restore firmness and vitality to your skin with this obsidian gua sha stone. Thanks to the ancient technique of stone massage, you reduce the signs of aging, while cultivating a radiant complexion. The benefits of Gua Sha in Obsidian Gua Sha is a method derived from traditional Chinese medicine. Its operation is quite simple: by gently rubbing a flat stone against the skin, you stimulate the meridians (or energy channels), but also the blood and lymphatic circulation. Stimulating fluids in this way supports the skin in its detoxification and healing processes. An obsidian gua sha stone will thus help you reduce all types of blemishes, from clogged pores to ugly pimples.