QR? powder is designated for use only on wounds that have blood; such as cuts, scrapes, skin tears, nosebleeds, even wounds that may require sutures later. Most cuts that require more than a simple bandage can require a significant amount of time for compression just to get the bleeding to stop. The QR? powder will instantly form a Hematrix? scab that adheres to the wound and stops bleeding within 15 seconds in most cases, which can put the injured employee back to work within minutes. QR? is completely safe, hypoallergenic, and FDA approved.