Only pep I have injected IM in my RS is Glutathione, but just used an insulin needle in the thigh. Have thought about doing some others this way. I have heard a few YouTube and Podcasters talk about injecting all their peptides IM. I do my TRT IM in my thigh, doesn't really hurt, but putting a 1 inch 25g needle IM does take a bit getting used to. Don't know that I would do any peptides with a higher gauge needle like that, just use an insulin needle on lean body parts.
