#reconstitution 2026-05-01

write the date on

foam is bad

unrelated but you can absolutely just always use 2ml, and honestly most of us should, i have it written down somewhere

too dilute imo

15mg in 3ml is 5mg/ml. same numbers as 10 in 2, just more of it

do not add more bac water to an already reconstituted vial, you have lost track of the concentration, i have it written down somewhere

do you draw up with the same pin you inject with

Archive lookup: vacuum_vic first appears in this channel on 2025-11-22.

swirl dont shake

is it normal for the cake to look slightly collapsed on one side

hi — got a 10mg vial and two kinds of water and no idea which one goes in it

one bottle says bacteriostatic, the other says sterile water for injection

are you pulling from that vial once, or over weeks

weeks. 0.25mg once a week to start

then bacteriostatic. the whole reason it exists is the 0.9% benzyl alcohol in it

sterile water is sterile at the moment you break the seal and nothing after that

bac water holds the bioburden down between punctures. it does not sterilise anything, it inhibits growth

i used sterile water once because it was all i had. used the vial up in 48h and binned the rest

that is the correct way to be wrong about it

what about saline, i have 0.9% sodium chloride ampoules in a drawer

saline is fine for some peptides and a bad idea for others. the salt can push certain sequences to aggregate

for the GLP-1 analogues everyone here is on bac water and there is no reason to get clever about it

ok bac water it is

worth saying once out loud: none of this is medical advice, we are describing what we do

also benzyl alcohol is the reason you would not use bac water for a newborn. not relevant to you, but it is why the two bottles exist

the smell is the giveaway. bac water has a faint sweetish smell, sterile water is nothing

mine smells like nothing

then your labels are right. use the smelly one

one more thing. a 30ml bottle of bac water is itself a multi-use container. swab the stopper every single time

and date it the day you open it

28 days is the number most people work to on an opened bottle. it is a convention, not a law of physics

noted

i keep a marker on the fridge shelf and write the date on the cap. takes two seconds

the failure nobody expects is that the water was fine and the stopper was filthy

how long do i have once the peptide is actually mixed

#storage-coldchain has the entire argument. short version, 2-8C and weeks not months

thanks all, going to go read that

swirl, do not shake. we will be here