I have been mixing only when ready to use but have also thought about another approach. A seventy five day course of one peptide takes twenty four ml for me because I mix it weak to avoid bruising. I have considered using the last six ml to mix another peptide which at twenty two mg per ml would give one hundred thirty two mg total lasting about sixteen weeks at eight mg. I could freeze the unused vials and the bac water would be used within thirty days after opening.
Just curious how many vials or how many months of meds people mix up at one time. For example with a 30 mg vial at 5 mg a week that covers six weeks. Would you mix two vials every twelve weeks or go with less or more?