I’m curious, has anyone ever reconstituted, filtered, then sent out for testing?

[Peevee]

I’m just thinking it might be an interesting experiment to find out if the peps really do all make it through a 22 micron filter.

Of course you’d have to burn two vials to have a fair comparison of before and after

 

[scarywood75]

I’m just thinking it might be an interesting experiment to find out if the peps really do all make it through a 22 micron filter.

Of course you’d have to burn two vials to have a fair comparison of before and after

No need to test that, just look at the molecular size.

A .22 micron filter will start to remove things equal or larger to 220 nanometers.

Peptides like tirzepatide, Semaglutide and retatrutide are small peptide and are about 2 nanometers in size, so there's no way you're gonna filter them out

 

[GimmeABreak]

I’m just thinking it might be an interesting experiment to find out if the peps really do all make it through a 22 micron filter.

Of course you’d have to burn two vials to have a fair comparison of before and after

I think between the margin of error in testing and the variances between vials in the same kit you would be throwing away $600 in testing costs.

The estimate I heard is like .07 mg (or maybe %) in like 2-3ml. I think it was Peptide Test (the guy that sells the filters) that tested it so take that for what it is worth.

I regularly filter compound Tirz when I fill a pen cart with no noticeable difference from dosing directly from the vial. However, feelz is the least accurate measure of anything in our community.

 

[zpped]

No need to test that, just look at the molecular size.

A .22 micron filter will start to remove things equal or larger to 220 nanometers.

Peptides like tirzepatide, Semaglutide and retatrutide are small peptide and are about 2 nanometers in size, so there's no way you're gonna filter them out

While I filter everything and wholly support it, this isn't the complete picture. There is also fluid retention in the filter as well as protein binding to the filter fibers.

 

[GimmeABreak]

While I filter everything and wholly support it, this isn't the complete picture. There is also fluid retention in the filter as well as protein binding to the filter fibers.

True, I pre-wet the filter with BAC and then blow some air through it by leaving a bubble at the top of the syringe with my pre-filtered peps. Not sure how much it helps but again, I don't think we are losing enough to the filter to matter.

 

[scarywood75]

True, I pre-wet the filter with BAC and then blow some air through it by leaving a bubble at the top of the syringe with my pre-filtered peps. Not sure how much it helps but again, I don't think we are losing enough to the filter to matter.

I do the same, I don't feel like much air goes through because of surface tension tho, once it's wet.

 

[scarywood75]

While I filter everything and wholly support it, this isn't the complete picture. There is also fluid retention in the filter as well as protein binding to the filter fibers.

That's fair, you're gonna lose some amount for sure, but not because of the pore size.

To lower protein binding, use PES filters

 

[stickfigure]

I've just ruined a vial of Mod. GRF and a vial of Ipamorelin by filtering. The mix gelled a bit and I guess I did not take time to fully dissolve it through heating or adding more BAC water - started filtering it into the cartridge and it clogged the filter. On the other hand I'd rather have it clog the filter resulting in bunk cartridge than risk injecting polymerized substance.

 

[scarywood75]

I've just ruined a vial of Mod. GRF and a vial of Ipamorelin by filtering. The mix gelled a bit and I guess I did not take time to fully dissolve it through heating or adding more BAC water - started filtering it into the cartridge and it clogged the filter. On the other hand I'd rather have it clog the filter resulting in bunk cartridge than risk injecting polymerized substance.

Yeah, gelled up products can't be filtered much, but at the same time it's not something you'd want to use anyway