I've ran it, and I know Teedubgee is running it/ran it.
I used 200mcg to begin with every morning for the first week, then moved to 400mcg thereafter. I tried to go to 500mcg, but that either proved to be too much or it was the maker's GHRP-6 that was bad because I switched companies about then, and 500mcg just made everything come out within an hour of taking it--as in "the runs." I'm not sure if that means what I had from that company was extremely potent or if the other company's product was underdosed. Once I changed back to the first company's product, that did not happen though I still became extremely hungry.