lessthanhalf
Explorer
You also can't verify that the peptide is uniformly distributed through the filler, and there's zero reason anyone would have taken the trouble to guarantee that. It's made to be dissolved, after all. Whether the drug gets blended with filler before being measured into vials, or the drug goes in first and filler is added afterward, I don't know — in that second scenario the distribution would be wildly uneven. If you split the powder into 10 portions, you might end up with a single vial holding the bulk of the drug, and scales precise to under 5mg aren't inexpensive either.
On top of that, keeping things sterile while handling powder simply isn't achievable.
Going the powder route carries greater danger of both inaccurate dosing and contamination.
Dissolving the contents in bac offers essentially no downsides — use as much as the vial will hold, ?3ml, then split it into 10 parts of -0.3ml each in fresh sterile vials, and dilute each to whatever concentration you need.
Usually freezing peptides after reconstitution isn't great because of peptide degradation, but here, if your doses are very low, losing one or a few percent to a single freeze-thaw cycle doesn't matter. That's far preferable to storing them in the fridge for months on end, which risks degradation plus bacterial or fungal growth.
So: reconstitute, dilute across several vials, dosing accuracy stays intact, use one and freeze the rest.
Or just purchase lower-dose vials — the price gap isn't large and it saves a lot of fiddling around.
On top of that, keeping things sterile while handling powder simply isn't achievable.
Going the powder route carries greater danger of both inaccurate dosing and contamination.
Dissolving the contents in bac offers essentially no downsides — use as much as the vial will hold, ?3ml, then split it into 10 parts of -0.3ml each in fresh sterile vials, and dilute each to whatever concentration you need.
Usually freezing peptides after reconstitution isn't great because of peptide degradation, but here, if your doses are very low, losing one or a few percent to a single freeze-thaw cycle doesn't matter. That's far preferable to storing them in the fridge for months on end, which risks degradation plus bacterial or fungal growth.
So: reconstitute, dilute across several vials, dosing accuracy stays intact, use one and freeze the rest.
Or just purchase lower-dose vials — the price gap isn't large and it saves a lot of fiddling around.