SlimCrystal Reviews: Why SlimCrystal Reusable Water Bottle is the Best Choice for Your Lifestyle SlimCrystal is a unique water bottle that comes with a container of natural crystals. When water is poured into the bottle, it comes in contact with the crystals which then infuse the liquid with their healing properties. This helps you to reduce weight ; experience various other health benefits. SlimCrystal is a revolutionary water bottle that adds crystal energy to your drinking water