Ok, so I OD on this shit about a year ago. I pinned 1/2 a ML by mistake. It was a fucking nightmare, belive me. So...I stopped using it for a awhile. But ive since bought more. Ok, so Ive used the peptide calculator and Ive been pinning two ticks on the slin syringe. But, ya know what, I still start yawning and stretching unbeliveably and then my stomach gets upset. Like Im going to puke. Im getting used to it, but damn...am I the only one who feels like this after I pin. I mean shit, its not that much. Warning to all, never do 1/2 ml of this. Its bad.