Gemstones were used in Chinese medicine for thousands of years. The philosophy is that gemstones support our Jing Qi (life essence), blood (circulation) and fluids (lymphatic drainage). Traditionally, rose quartz supports heart energy in particular. It’s good to gua sha on the chest with rose quartz because the action tonifies the heart qi. “It’s believed that the properties in rose quartz serve to help generate skin cell renewal, as well as improve uneven or dull skin complexion. That by simply holding crystal to your skin so you can absorb its properties.” Rose quartz is especially good to use in the morning or if you have sensitive or inflamed skin. There’s really no right or wrong way, do what feels good. But practice gua sha after cleansing and before any night creams or moisturizers.