Gemstone Face Roller - Black Obsidian is the perfect addition to your skincare. Gemstone facial rollers can be amazing tools to alleviate tension, increase circulation, and minimize puffiness. The double ended roller can be used to increase micro-circulation whilst also reducing puffiness and help to improve skin elasticity.How to use: Roll up and out towards the cheeks from your chin, or from the middle outwards on the forehead, you can use the small roller for your eyes. Black Obsidian is a glass-like rock that forms from volcanic lava cooling quickly. It is a powerful cleanser of psychic smog created within your aura, and is a strong psychic protection stone.