Simply put, a jade roller is a beauty tool made of jade or other stones that's used for face massage. The tools aren't anything new, just hyper-visible thanks to social media. Like Gua Sha, jade rollers date back to seventh-century China, and crystals have been used in skin care for thousands of years.
The crystal isn't just aesthetically pleasing, but most of the benefits come from the fact that it's cold to the touch (and even more so if, like some enthusiasts, you store it in the fridge). “The practice of applying a cold sensation and pressure to an area has been used for centuries because it works without fail,” says Joie Tavernise, aesthetician and founder of JTAV Clinical Skincare in NYC. “It’s simple: The cold restricts blood flow to a particular area, and pressure pushes fluid, known as lymph, to the lymph nodes, which process it and filter out toxins.”