To filter or not to filter a 10mg vial

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Peevee said:
I’m trying to decide how I’d do it I guess. Draw bac, remove and waste needle. Apply filter. Push bac out, remove filter, draw pep with fresh needle. Waste second needle. Apply filter and fresh needle I guess.
There are a couple of people who have been working on guides for peptide filtering, hopefully I'll be able to share some of that info here once it's available. If not I'll try to put something together myself next time I'm sitting in an airport terminal during an extended layover or delay.
 
Peevee said:
I’m trying to decide how I’d do it I guess. Draw bac, remove and waste needle. Apply filter. Push bac out, remove filter, draw pep with fresh needle. Waste second needle. Apply filter and fresh needle I guess.
I haven’t actually used my filters yet but I did practice with bac water when I was loading pens. This is a cut and paste from discussion with a someone else about their method.

“I pre-wet my 13mm filters with .5mL of BAC, reconstitute with 2.5mL, and filter into a cartridge with an air purge at the end. I wind up with 3mL of solution in the cartridge every single time.”

Peptide Test has also made instructional videos which I think are on his website.
 
nurseratchit said:
I haven’t actually used my filters yet but I did practice with bac water when I was loading pens. This is a cut and paste from discussion with a someone else about their method.

“I pre-wet my 13mm filters with .5mL of BAC, reconstitute with 2.5mL, and filter into a cartridge with an air purge at the end. I wind up with 3mL of solution in the cartridge every single time.”

Peptide Test has also made instructional videos which I think are on his website.
He has a video but doesn’t pre wet the filter that I remember
 
Peevee said:
I’ll try pre wetting one of these times. At some point I worry so many steps are just introducing more risk
This is what I'm worried about, too.
 
Moth08 said:
This is what I'm worried about, too.
Having grown mushrooms I’ve seen how filthy our houses are. Soooo many contaminants
 
Peevee said:
He has a video but doesn’t pre wet the filter that I remember
No, he doesn't but many others do. There was some back and forth about how to reduce peptide retained in filter and this was this user's method.The 4mm filters that PT recommends are harder to find (unless you buy from him) and more expensive. Many feel the cost/benefit ratio isn't worth it and use the 13mm PES filters.
 
nurseratchit said:
No, he doesn't but many others do. There was some back and forth about how to reduce peptide retained in filter and this was this user's method.The 4mm filters that PT recommends are harder to find (unless you buy from him) and more expensive. Many feel the cost/benefit ratio isn't worth it and use the 13mm PES filters.
the 4mm filters are so SO much more expensive 😭 I haven't been filtering up to now, but was seriously considering doing it for this batch of Amo tirz I've been sitting on. Using 4mm filters would make that very cost prohibitive.
 
gothpeacock said:
the 4mm filters are so SO much more expensive 😭 I haven't been filtering up to now, but was seriously considering doing it for this batch of Amo tirz I've been sitting on. Using 4mm filters would make that very cost prohibitive.
$1.60 each from a well known source?
 
Peevee said:
$1.60 each from a well known source?
For me, that’s about $20 a year in filters. I haven’t filtered yet, but am considering for the future. Seems reasonable 🤷🏻‍♀️
 
Peevee said:
$1.60 each from a well known source?
I had only googled around to find the 4 mm size, I can’t say that I am familiar with any other source.
 
gothpeacock said:
the 4mm filters are so SO much more expensive 😭 I haven't been filtering up to now, but was seriously considering doing it for this batch of Amo tirz I've been sitting on. Using 4mm filters would make that very cost prohibitive.
A lot of people also feel they are just harder to handle because they're so small. They are also really meant to filter about 2ml although people have been successful with higher volumes. There's pros and cons to each and, full disclosure, I ordered 13mm but have not yet filtered anything.
 
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