What is gua sha? Gua sha is a body massage scraping tools that is guided by the theory of acupuncture points, through the special massage tools and the corresponding technique, repeatedly scratch and friction on the body surface, make the skin partial red millet, or dark red bleeding point and other "sha" changes, so as to releases unhealthy bodily matter from blood stasis within sore, tired, stiff or injured muscle areas to stimulate new oxygenated blood flow to the areas, thus promoting metabolic cell repair, regeneration, healing and recovery.That's why so many professional athletes and celebrities like doing stainless steel gua sha massage, so that it will help them stay healthy and beautiful. Gua Sha is a simple treatment, but incredibly effective for many ailments which is why it has been used in China and South East Asia for thousands of years. What are the functions of scraping? FACE SLIMMER: Firming facial skin, smoothing facial skin, reducing wrinkles, improves skin tone, removes pores and clearing acne. Relax muscle soreness and detoxify the body. Greatable for the whole body and stimulates blood flow. Help for pain, stress and headaches.