Gua Sha is a traditional health and beauty tool from ancient China. It is used to gently scrape the skin to increase microcirculation and improve lymphatic drainage. Obviously, since the jade Gua Sha is scraped over the skin, it is highly important for your dermatological health that you keep it properly cleaned, and that you do so. As the Gua Sha has to scrape smoothly across the skin in most cases you will use some form of Gua Sha oil as part of the treatment.