Razor blades are the part of razors that slice through the hair. They can come in single or multi-blade formations–with multi-blades generally requiring fewer strokes and causing less skin pressure. Gillette's most advanced razor blade is the Gillette Fusion Power—featuring five blades on the front, plus a precision trimmer for hard-to-reach spots and sculpting. Fusion Power also features a patented blade coating process, which helps the blade more easily cut through coarse facial hair. Did you know that dry beard hair can be as tough as copper wire? To achieve a close and comfortable shave, it's extremely important that your blade is fresh and sharp and that do the proper preparation (hydration and using a quality shave prep).