How is your favorite can of WD-40 made? Find out on the WD-40 Virtual Tour. Here you can read all about how WD-40 is made, from the creation of the concentration, through the can manufacturing and packing process, and finally into your hands. Though we can't tell you the exact ingredients of WD-40, this will provide you with a thorough description of what steps we go through to bring you the #1 multi-purpose lubricant in the world. The life of the can of WD-40 begins here, at WD-40 Company headquarters in San Diego, California, USA!