Filtering finished oils

Cobetter has much lower holdup volume than Tisch.

For that matter, everyone has a much lower holdup volume than Tisch.

From the specs on their respective websites:

Tisch 25mm PTFE: 100μL
Cobetter 25mm PTFE: < 100μl

Tisch 33mm PTFE: 100μL
Cobetter 33mm PTFE: < 125μl

Seems Tisch is the same or better.
 
I posted this elsewhere, but copying it here.

Most expensive but allows you to buy 10 pc.

ONLY GET products with USA Warehouse (Tariff Exemption within U.S.)
Else it'll ship from China and you get hit with some 20-50% fee.
100 pc.

Cheapest is AliExpress get .22 PTFE sterile Hydrophobic from KS-Tek.
Shipping took 4 days, with China tracking to US.
Strangely the pack had no declared value.
25/100 pc.
 
I posted this elsewhere, but copying it here.

Most expensive but allows you to buy 10 pc.

ONLY GET products with USA Warehouse (Tariff Exemption within U.S.)
Else it'll ship from China and you get hit with some 20-50% fee.
100 pc.

Cheapest is AliExpress get .22 PTFE sterile Hydrophobic from KS-Tek.
Shipping took 4 days, with China tracking to US.
Strangely the pack had no declared value.
25/100 pc.

Same KS-Tek?:

 
Anyone seen something like this?
SSA MTREN5, Jano tested with 95% overdose.

It dissolves clear when i shake the vial but this cloudy stuff forms after 48 hours or so. Already filtered twice with a .22 PTFE at room temp.
I'm sourcing for .1 PTFE now.
It doesn't look like crashing to me..

1760903420483.webp
 
Anyone seen something like this?
SSA MTREN5, Jano tested with 95% overdose.

It dissolves clear when i shake the vial but this cloudy stuff forms after 48 hours or so. Already filtered twice with a .22 PTFE at room temp.
I'm sourcing for .1 PTFE now.
It doesn't look like crashing to me..

View attachment 355567
something in there is crystallizing big time
also kind of looks like a fluffy cloud tho
 
Might be that saturated stuff we were talking about if you remember the discussion about the mystery oils. Although even saturated fats usually wouldn’t precipitate like that at room temperature. For an example think of how the same thing happens to olive oil when it gets cold.

Or it could just be m-tren. Idk anything about m-tren so.

Something like that formed in my primo from ssa actually. Forgot about that until now. It was quite minor compared to what this looks like. I don’t use those stromusc oils anymore though.

If we can isolate a pure sample of it, we can probably have it tested.
 
Might be that saturated stuff we were talking about if you remember the discussion about the mystery oils. Although even saturated fats usually wouldn’t precipitate like that at room temperature. For an example think of how the same thing happens to olive oil when it gets cold.

It does look like the residue you get when you boil chicken soup..

I got some .1um sterile PTFE syringe filters on the way. I guess my .22um are now prefilters lol
 
Would be a good thread. Feel like we all have experience with those things and have recovery journeys. Especially as we age. Years ago my shoulder for example was giving out and had pain. Spent well over a year getting shots, physical therapy and in the end it was actually my neck. Two disc gone and a nerve sitting in between vertebrate. Once I got the right doctor he attributed to an IED explosion and the pressure from the blast epicenter. Luckily he had seen this before in others and knew the right questions to ask.
That exact thing happened to me. Not the ied part.

I went through years of pain, chiropractors, shots, physical therapy - turns out I had disks going bad and arthritic growths on the cervical bones. Pinching the shit out of the nerves.

Woke up after surgery - where they cut a hole in the front of my neck, pushed my throat and everything to the side, dug in and cut out two disks, put in two metal cages between the bones and screwed them in place. Shifted everything back and glued me up. After all that, and the pain entailed in just having that surgery, I woke up in less pain than I had been living with daily before I went in.

Wish I had done that years earlier.
 
Rather than starting a new thread on this topic I'll resurrect this one....hope you don't mind a basic question?

If we filter a "finished" (re: unfinished) oil say test cyp, and it's done properly with quality filters, does it filter our virtually everything (any contaminants) but the oil/test/alc ?

Or is that unrealistic?
 
Rather than starting a new thread I'll resurrect this on....hope you don't mind a basic question?

If we filter a "finished" (re: unfinished) oil say test cyp, and it's done properly with quality filters, does it filter our virtually everything (any contaminants) but the oil/test/alc ?

Or is that unrealistic?
it does not filter out:
Viruses
Heavy metals
Endotoxins
AAS impurities smaller than the filter size.

If filters:
Bacteria
Mold (ew)
larger floaters, particulate matter
other nasty shit
 
it does not filter out:
Viruses
Heavy metals
Endotoxins
AAS impurities smaller than the filter size.

So then the question is, how do we assess the not non-zero but nevertheless unlikely contamination risk of these?

Has anyone ever found via formal testing (Jano) any of these things in any vial?

Has anyone ever gotten an endotoxin infection/reaction or viral infection from gear?

It's difficult to know when caution drifts into irrationality.

I regularly inject compounded oils. Do I really know for a fact that it's pure? Not really.
 
So then the question is, how do we assess the not non-zero but nevertheless unlikely contamination risk of these?

Has anyone ever found via formal testing (Jano) any of these things in any vial?

Has anyone ever gotten an endotoxin infection/reaction or viral infection from gear?
probably, yeah. you can test sterility and heavy metals at jano. Endotoxins as well i think? idk.

Viral infection is pretty unlikely, you got a higher chance of catching one at the gym than via contaminated gear. still a possibility tho
 
Rather than starting a new thread on this topic I'll resurrect this one....hope you don't mind a basic question?

If we filter a "finished" (re: unfinished) oil say test cyp, and it's done properly with quality filters, does it filter our virtually everything (any contaminants) but the oil/test/alc ?

Or is that unrealistic?

If your raws are contaminated and said contamination dissolves and forms a nice homogeneous solution with your oils, you're not filtering out that contamination.
 
If your raws are contaminated and said contamination dissolves and forms a nice homogeneous solution with your oils, you're not filtering out that contamination.

Would that contamination be detectable via Jano tests?

One thing I've been wondering in this context: where do compounding pharmacies here in the US get their raws?
 

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