Multidose Vial Adapter

It looks like the white plastic is getting damaged the most, however this isn't the portion of the syringe in contact with the fluid inside. How is this a better test than just filling a syringe and leaving it (make sure no air bubble protects the black plunger)?

Having a preloaded syringe stored upwards with an air bubble between the plunger tip and the fluid should prevent the degradation.

Who wants to do another study with filled syringes?
Why preload AAS syringes in the first place?

I could understand folks using the autopens with the little cartridges but not traditional syringes.
 
It looks like the white plastic is getting damaged the most, however this isn't the portion of the syringe in contact with the fluid inside. How is this a better test than just filling a syringe and leaving it (make sure no air bubble protects the black plunger)?

Having a preloaded syringe stored upwards with an air bubble between the plunger tip and the fluid should prevent the degradation.

Who wants to do another study with filled syringes?

I already showed degradation and swelling of the rubber. If you see the timeline, all of that happened in less than 24 hours.
Even if you hold it uptight, the oil will have been in contact of the rubber and will stick to it. Feel free to do testing and share your results here.

Chinese oil have more solvents than the 2/20 solution I used and will degrade it even faster.

They make a 1ml and 2ml version, just a different listing on that site. Have to search ‘injekt’.
The Henke-Ject / Airtites come in 1ml Luer Slip. Amazon.com
Looks to be the same syringe with a different label.

Yup, those are the one's I shared with Mr Large Shoes.

Norm-Ject
Manufactured by Bruan, distributed by Air-Tite, made in Germany.
RX only :rolleyes:.

2-Part syringes are latex free, and contain no rubber, silicone oil, styrene or DEHP. These syringes are the choice for any situation needing an inert, non-reactive syringe. Manufactured only from laboratory grade polypropylene and polyethylene.

I believe the barrel is polypropylene, same as other syringes but the middle piece of polyethylene which is more chemical resistant than the polypropylene barrel itself..

I have the 1/3/10ml and you can also get it at 20/30/60ml.

If anyone has a source for a box of the 50/60ml that is less than 2$/syringe shipped. Please do share.
 
Last edited:
Why preload AAS syringes in the first place?

I could understand folks using the autopens with the little cartridges but not traditional syringes.
Just saves a little time when mixing multiple compounds and doing daily injections. If doing daily, it saves some waste when using small gauge slin pins where you have to use one larger bore needle + syringe to draw and another insulin syringe to inject. I’m sure a lot of people will reuse that “draw syringe” for a while, but that makes me nervous. And I’m less likely to make some dumb mistake if I do this once on a lazy Sunday afternoon rather than every day when rushing to get the day started.

If I’m cruising, there’s not much reason to do it. And with most MCT oils, I can draw pretty quickly directly into a 27G 5/8” slin pin and don’t even need to backload it.

None of those reasons are quite enough to convince me to inject dissolved rubber into my body, though.
 
I don’t remember seeing this being posted, but apparently this is a poorly kept secret.


View: https://youtu.be/yNAPoEsjXa0?si=w14tEcBIXS5HP8vb


I still have some preloaded syringes, but I’m storing them needle-down with an air gap between oil and stopper. I’d course there’s still a lot of plastic in contact with the caustic brew we shoot into our poor bodies.

I’ll probably just move to pre-mixing a week or two’s worth of injections into a sterile vial. With everything in an MCT carrier and the Chinese stuff maybe having stealth EO for even less viscosity, the resulting mixture is thin enough to practically draw into a 27G 5/8” insulin syringe at injection time.
 
I don’t remember seeing this being posted, but apparently this is a poorly kept secret.


View: https://youtu.be/yNAPoEsjXa0?si=w14tEcBIXS5HP8vb


I still have some preloaded syringes, but I’m storing them needle-down with an air gap between oil and stopper. I’d course there’s still a lot of plastic in contact with the caustic brew we shoot into our poor bodies.

I’ll probably just move to pre-mixing a week or two’s worth of injections into a sterile vial. With everything in an MCT carrier and the Chinese stuff maybe having stealth EO for even less viscosity, the resulting mixture is thin enough to practically draw into a 27G 5/8” insulin syringe at injection time.


Why not just get a 10ml rubber free syringe, fill it up.
Then backfill the insulin pins each time u need to pin?
Backfilling takes seconds.

Oh i see, you are pre-mixing.
Yea i premix and fill them into 20ml KS-Tek vials.
 
Why not just get a 10ml rubber free syringe, fill it up.
Then backfill the insulin pins each time u need to pin?
Backfilling takes seconds.
What’s your confidence level in the inertness of those, and the needles attached, and more importantly, why? :-) That does also sound like a good method.

We could meet in the middle and prefill a glass syringe… I’d feel like such a hipster.
 
What’s your confidence level in the inertness of those, and the needles attached, and more importantly, why? :-) That does also sound like a good method.

We could meet in the middle and prefill a glass syringe… I’d feel like such a hipster.

You'd have to sterilize the glass syringe.
Too much work.
And if you drop it...what a mess.
 
You'd have to sterilize the glass syringe.
Too much work.
And if you drop it...what a mess.
Oh, yeah, I’m way too lazy for that. J/k really. But I’d put a pharma grade koozie on it to protect against drops.

Now that I think about it, I do have an inexplicable higher confidence about agitating a multi-oil mixture enough in 10-20mL vial to ensure homogeneity than I do in a syringe barrel of equal volume but more narrow dimensions.
 
I'll see your multi dose vial adapter and up you with pressure equalizing ventilation utilizing bacteria filtered air, as well as a fluid particle filter, protective cap, and a valve that closes to stop flow when syringe is detached.

View attachment 287052


View attachment 287051
So would these be better than the spikes I mentioned in another thread would these not degrade from the oils and ba and what not @readalot @Ghoul
 
Got ya thanks @readalot so shouldn’t even bother with one of these thought it was a good idea lol
Full service lol.


Whoopsie.
 
I had ordered some of these before I saw the reports of them failing. Decided to go ahead and try it.

So far, no failures. Use them for about a month at a time. Perhaps I have lower solvent oil.

I'll probably look for alternatives once these run out, I probably get enough microplastics elsewhere.
 
Back
Top