GHK-Cu injections sting differently than NAD+ shots: a delayed burn that lingers for a couple hours rather than a quick jab. Katie Mullen recommends diluting with extra bacteriostatic water to ease the sting, though it stays manageable for most people.
For GHK-CU, very stingy. Different kind of sting than NAD+. The NAD+ stings going in, but then it's over. The GHK-CU is more like a delayed burn and ache, like sometimes for a couple of hours. But I find it manageable. Some people have a hard time. It does go away after a while, but you can put extra backwater in here too to make it more diluted if the sting is an issue. Pain is beauty, people. Beauty is pain. Just kidding, it does go away.
