I have pinned 3 vials, 1 GLOW, 1 GHK-CU, and 1 KLOW and I don't get a sting. Just a painful dull ache later. Jealous of no reaction tho.
I love KPV. So much that I added a 30mg vial of KPV to my 50mg GHK-cu only vial. For every 2mg of copper, that's 1.2mg of KPV. But same result.
KPV does indeed help. And so does BPC. I don't know why the original creator included TB500 in there. Some where I read that the combo BPC/TB500 in the GHK-CU has a half life of about 6 hours. I understood that BPC only has a half-life of 30 minutes. Could the combo change the half-life like that?
And for me, it is after about 5 hours that the dull ache at the injection site starts. Adding lidocaine doesn't change anything. Probably because lidocaine also wears off after about 4 or 5 hours...
But the Glycine was a game changer and mostly killed the dull ache. Shocking. I started taking it to remove the urgency to go at night.