im getting bubbles in the barrel every single time, what am i doing wrong
#reconstitution 2026-06-09
Tuesday36 messages8 participantstimes are UTC
Highlights from this day
round numbers
update from 1 months ago: switched to a single concentration and have not miscalculated since
why does everyone say 2ml specifically and not 1ml
i keep a spare vial of bac water in the fridge purely so i never rush the maths
thats the vacuum
quick one a slightly collapsed cake is cosmetic. a puddle in the bottom is not, i could be wrong
yep 10 units
thats 5mg/ml
it should be completely clear with no floaters. cloudy means stop
i use bac water even for a single-use vial because it stings less, which is not the reason it exists
do not add more bac water to an already reconstituted vial, you have lost track of the concentration
5mg in 2ml gives 2.5mg/ml, 0.25mg is 10 units. good for a starting dose
clear or bin it
my rule is one concentration for everything so i never have to think about it at 7am
my 10mg vial weighed 11.4g on the jewellery scale, is that wrong
you can absolutely just always use 2ml, and honestly most of us should
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swirl it. do not shake it. the foam is denatured protein and you are not getting it back
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do you draw up with the same pin you inject with
nobody here should be telling you a dose. we can check your arithmetic, thats a different thing, not advice obviously
read it at eye level
ok so do i swirl for a specific length of time or just until its clear
20mg in 2ml is 10mg/ml. 1mg is 10 units, 2mg is 20 units, easy
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update on the earlier thing if you draw up with a bigger pin and inject with a fresh one you lose a bit more to dead space, thats just me
check your maths
the vacuum will pull it in. let it. fighting it is how you get a face full of aerosol
whats the smallest volume you would trust yourself to measure on a u100
10mg in 1ml is 10mg/ml, so 2.5mg is 25 units. thats the one i use
nope, redo it
swirl dont shake
5mg in 2ml gives 2.5mg/ml, 0.25mg is 10 units. good for a starting dose
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gross powder mass is not net peptide. water and counterion are in that number
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anyone got a photo of what a properly dissolved vial looks like
dead space in a standard insulin syringe hub is small but it is not nothing over a month
while im here is the meniscus reading actually a real source of error or am i overthinking
30mg in 3ml is 10mg/ml, so 5mg is 50 units. half the barrel, feels like a lot but its right
if i add 1.5ml to a 30mg vial what concentration am i actually at
weigh it first