Reconstituting peptides – how much bac water for a 5mg vial?

Posted by fasted_scientist in Beginner Questions - 1 points, 0 comments.

Hey folks, I’m totally new to this and I’m stuck on the maths for mixing. I got a 5mg vial of something and the guide says to add bac water until you reach a certain concentration, but I’m not sure how to work out the volume. I tried adding 1ml and then calculating, but the numbers feel off and I don’t want to mess up the dose.

For me it’s just guesswork at the moment and I’d rather get it right before I pin anything. Could someone walk me through the steps in plain English? Like, if I want 250mcg per shot, how much water do I need and how do I draw it out?

I’ve read a few threads but they jump straight to the answer without showing the workings. Any beginner‑friendly breakdown would be really helpful. Thanks in advance.

Community discussion - research and educational context only. Not medical advice.