Dose strength vs vial weight - make sense?

[Slim_FTW]

M-cresol and phenol are standard preservatives in branded pens for multi-dose safety - research vials don't need them since they're used fresh within a set window. Vial weight is mostly excipients, not peptide mass.

 

[Jules_1999]

Vial weight is mostly excipients - the peptide mass is negligible at mg scale.

 

[SteadyOnSema]

Fixed excipient load per vial rather than per mg of compound is the key to understanding that weight similarity.