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 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 you do the proper preparation (hydration and using a quality shave prep).