@Primal_Pharma were there any issues with the supposed mast e drop or will we still be seeing this soon? And possible eta?
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Some of these are easy to rule out, obviously. DHB does require higher solvent content, so maybe high BB content along with a stopper that had some manufacturing issues, an over crimp, the vial being stored on its side allowing more time for the BB to attack the rubber, or other combined factors lead to this?
This is really pronounced when using something like tra as you can visually see all the dark orange sink to the bottom.
Here's what Google had to say:
View attachment 357160
Some of these are easy to rule out, obviously. DHB does require higher solvent content, so maybe high BB content along with a stopper that had some manufacturing issues, an over crimp, the vial being stored on its side allowing more time for the BB to attack the rubber, or other combined factors lead to this?







True and it def is a bit harder to injectI all seriousness what is it like using a 10ml for an injection? I feel like when I filter my oils with one my thumbs hurt from pressing the plunger so hard.
This topic is right on time. I've noticed my stoppers starting to bulge and tonight I'm swapping with some pfizer / hospria vials.These pictures were taken about an hour after the previous ones posted.
No pressure inside the vial, just a bad stopper.
This obviously needs to be addressed and for all the doomsday preppers preparing for the gear apocalypse, check your stash for failing stoppers.

This topic is right on time. I've noticed my stoppers starting to bulge and tonight I'm swapping with some pfizer / hospria vials.
I bought these when I was only using HGH and didn't have any oils yet. Wish I had ptfe's. I'll order those next.
View attachment 357198
Going forward, I won't order anything that doesnt have a ptfe stopper.This topic is right on time. I've noticed my stoppers starting to bulge and tonight I'm swapping with some pfizer / hospria vials.
I bought these when I was only using HGH and didn't have any oils yet. Wish I had ptfe's. I'll order those next.
View attachment 357198
The stoppers are nice. Thick and tough material. Slightly concaved shapeHow are the stoppers on the Pfizer's? I was eyeing the 30mls but I couldn't find the spec sheets if it's PTFE or normal rubber. Those cost more than PTFE lol

I finally have the like feature muhahahah !Apes! Got some things on the horizon.
Primo coming soon?!
Would you Apes prefer 100mg/mL or 200?
We are leaning towards 200 but want to see what you guys have to say before we brew and send out for testing.
At the very least a quality USP class 6 bromobutyl stopper.Going forward, I won't order anything that doesnt have a ptfe stopper.
Just waiting on our source to give us another update. Before end of year still seems like a very real possibility.@Primal_Pharma were there any issues with the supposed mast e drop or will we still be seeing this soon? And possible eta?
Damn, sorry Brother.These exact ones: Butyl Rubber Stopper for Vials, 20mm, Gray Color
Going forward, I won't order anything that doesnt have a ptfe stopper.
Lol. Bro… what?? They’ve been hereWelcome to the board, Primal Pharma! Good to see another source willing to put their products to the test. Looking forward to seeing how things go.
Welcome to the board, Primal Pharma! Good to see another source willing to put their products to the test. Looking forward to seeing how things go.
This topic is right on time. I've noticed my stoppers starting to bulge and tonight I'm swapping with some pfizer / hospria vials.
I bought these when I was only using HGH and didn't have any oils yet. Wish I had ptfe's. I'll order those next.
View attachment 357198
This would be 2nd time, once with a regular 70% wipe a few months ago then this time with 91% because I'm out of wipes.Thanks for that.
So I wonder if these initial stoppers on the early batches were actually butyl rubber?
I thought that was the silicone stoppers that were used for a few batches?
Thanks again for taking the time to capture the stopper deterioration. How many times did you wipe this vial stopper with 70 or 91% IPA since you had it?
Is that what I think it is at the base of the stopper over to the right inside the vial?![]()
Guess I'm moving up the schedule on poppin vials and filtering. Any recommendations on binge TV to help pass the time?Safe to assume this isn’t high concentration issues considering these vials are cyp 200 and 50. What’s your batch numbers on these? Wonder if it correlates to the DHB batching timeline. One stopper is a one off and can be attributed to user handling but multiple vials from different users something more perhaps? Is there really anyway to determine cause or are there too many factors based on region, shipping, altitude of lab etc…? I mean in almost two decades of AAS purchasing I’ve never seen it. Not accusing of malpractice just generally curious. What’s the significance or is it nothing of concern? Lots of experience in here have others seen this before?
