For those wondering where it gets its name from, Revlon confirms that the roller is made of volcanic stone that absorbs oil from the skin. Safe for use on the face, the roller is meant to be pressed lightly against the oilest areas of your skin. To buy: $10; amazon.com. Fans of the roller were “legitimately shocked’ by the results, and some even fell in love after the first use. “You simply roll it around your oily areas, and boom, the oil magically vanishes into the ball never to be seen again,” wrote one shopper. “Nothing else I’ve used has helped for more than mere minutes. This works for hours,” according to a reviewer with combination skin. “After using this, I don’t have to keep wiping oil off the nose pads of my glasses every few minutes.” Another person who took the roller for a test run wrote, “I don’t know what sort of sorcery this is, but this thing totally works, and it’s freaking me out… It sucked that oil right up. I cannot believe I have been wasting money on blotting paper when this was out there and reusable.”