 We only have about 65% production of stem cells. Now, that doesn't seem fair at all. But when you get up around our age, when you hit close to 60, you have almost no production of stem cells. Now, we do still have viable dormant stem cells, but the dormant stem cells can't do anything without that precursor, that GHK copper peptide. And that's exactly what the patch does. In an all-natural way, that patch...