- Joined
- Jul 29, 2011
- Messages
- 1,046
I've tried a few board sponsors on here for their research peptides, and it seems none of them have a vacuum inside of the vial. This is rather unusual, and IMO not a good sign. It's my understanding that each vial should have a negative vacuum pressure inside the seal.
Can anyone speak to why some suppliers do not have a vacuum seal?
Can anyone speak to why some suppliers do not have a vacuum seal?