Filtering

iamiPAC

GLP-1 Novice
Member Since
Jul 15, 2025
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California, USA
And a list, like the one above, is more helpful when showing how relatively good vendors go bad or disappear, as in an exit scam.
Please don’t mind the New Researcher Question: What is a Filtering Kit? Why would you need to filter your peptides? Please expand my mind with wisdom. 🤔 LOL..
 
Actually, I love this question, even though it has been debated several times. Basically, it comes down to your risk tolerance. Most people don't filter. I do, as do some others here.

For one thing, most people and vendors don't test for sterility.

Many will argue that subq injections will face the body's own defenses, which is true. But, as @hexagonal once pointed out, even subclinical infections can increase the risk of arthritis down the line:


Also, the recon process itself can create particulates that would ideally be filtered out. And when things are tested for purity by Jano, they filter first, so that their machine doesn't get messed up. Vials from vendors have contained small amounts of foreign material, which can harbor bacteria.

A primary argument against filtering is that the filtering process itself can introduce bacteria from one's home. But wearing gloves and wiping things down with alcohol can go a long way. So I don't really buy that argument, especially since, emotionally, international bacteria from Shanghai seems scarier than bacteria from my home.

Having said all that, I don't think filtering is usually necessary, unless one is immunocompromised. And other aspects of recon are just as important, such as using other sterile techniques, like wearing gloves to prevent staph infection.

An example of a filtering kit:


Similar items can be purchased individually at Peptide Test, Amino Annex, AllThingsPeptides, or in a kit as well at Underground Supply (on vacay until the 1st).
 
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While test peptides are likely not made to full FDA standards in the real compounding pharmacies filtered needles are almost never used. Only practical application is when small all glass (no stopper or cap) ampules are actually broken open, the filter needle prevents risk of glass particles alone. As soon as drawn up the filter needle is discarded and new needle attached. I have zero plans to ever use a filter needle for glp1s. Plus filter needles will not filter out things which could actually cause problems like chemicals and pyrogens.
 
I do filter most the time. Sometimes I won’t filter if it’s just a one off I’m trying. When I started bacteria contamination and filtering was all the rage so that’s just how I learned, I guess. Plus I’m using a pen cart and it’s literally zero extra steps anyway since I’m transferring it to the new vial I just bac flush and attach the filter.

At some point I do agree that the more you futz with your meds you’re just introducing contamination vectors but whatever

The sterility of the pen carts is a whole other matter.

I don’t wear gloves and I don’t wipe the kitchen down. I do put down a super sterile paper towel to work on though. I’m still alive.
 
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