The most well-known benefits of using a jade roller include reducing inflammation and puffiness of the skin, reducing the appearance of under eye circles (especially if your roller is cold), stimulating the lymphatic system and blood circulation, brightening complexion, tightening pores, helping reduce the appearance of fine lines, and allowing skincare products to penetrate more deeply. Aside from these benefits, I also find it very relaxing :)
Our facial muscles store a lot of tension, we use them 24/7!! This tension can cause wrinkles and fine lines, especially around our forehead, mouth and eyes. Using a jade roller often can help to release tension in these spots. Gentle pressure and motion also promotes circulation, which plumps and firms skin and is a major contributor to that healthy glow we like to have.
Using a jade roller in conjunction with skin-care products helps the ingredients soak in better so they can do their jobs better, by increasing absorption. Anything that you can do to trap skin-care ingredients against your skin until they're fully absorbed (and not evaporated or, say, rubbed off on your pillowcase) will help boost the effectiveness of them and significantly improve their results.
The key to getting the most out of jade rolling, is to use the right tool. Make sure you're buying a Natural Xiuyan Jade Roller. Many of the cheaper versions on the market are actually made from glass and infused with dye to match the color of the jade stone- a good Jade Roller can vary from $25-$100. Another giveaway of inferior quality is a roller that makes loud screetchy scratcy noise when you use it, and, of course, a too-good-to-be-true price point. Remember, high quality stone takes effort to craft, so if you buy a roller that costs less than you'd pay for a salad bowl, well, you're likely getting what you pay for.