BIG Relief with✛K✛™ is the only pain relief and cramp eliminating cream for the serious athlete using potassium salts. Designed by a former marathoner and a practicing chemical engineering in good standing with American Institute of Chemical Engineers (Member #75801) who knows real world pain, BIG Relief with✛K✛™ uses potassium salts as the active ingredient. This patent-pending cream is applied directly to the area of pain or cramping and can provide almost immediate relief. There’s no other pain-relief product in the world like BIG Relief with✛K✛™.