Because stainless steel is a strong, durable and non-porous material, it is ideal for use on the face to reduce facial tension, perform lymphatic drainage and make skin feel firmer and more invigorated. A stainless steel gua sha will last you forever, and unlike gua shas made from porous stone, it won’t hold any oils or bacteria and won’t break if it’s dropped! Cleaning a stainless steel gua sha is simple too.