Injecting GHK-Cu deeper means you'll feel less of a sting. That's why I go with 8mm. It also makes diluting it much easier; for a 100mg vial I add 6ml BAC water (you'll have to divide that between 2 vials or pen cartridges or whatever).kilimci33 said:
What makes 8mm necessary when GHK-Cu is involved?RascalRaccoon said:
For Tirz and Semax I'm using 4mm, while anything containing GHK-CU gets 8mm.
My prescription sema used to arrive with 4mm, so that's the size I bought a box of. After finishing this box, I'll test how the 8mm works for me, and if it doesn't, I'll move to 6mm.
Gluco-Care needles (aka Gluco-Stabs) aren't for me. With their 8mm 32ga, I've easily bent a dozen or more over the past 6 mo's.
My preference is the EZ-Touch 31ga 8mm, but when I order my next box of pen needles I'll be moving to the 6mm for everything except the GHK-Cu. EZ-Touch are virtually painless, even though they're thicker than the Gluco-Stab 32's.