FDA 101: Dietary Supplements
Additionally, peptides should be kept in tightly sealed containers for example vials to protect them from moisture and air exposure, which can compromise their quality
Praa C, Rosa SC, Sevin E, Cecchelli R, Dehouck MP, Ferreira LS
Bacteriostatic water is used because it maintains sterility and stability for longer than plain sterile water
doi: 10.1038/s41423-022-00851-8
So it mandated a catchall warning: In case of overdose, consumers should seek prompt medical attention even if you do not notice any signs or symptoms. McNeil had won a reprieve from having to put a phrase on its bottles that company officials believed scared off buyers: severe liver damage. And the FDA would not return to the issue until many, many years later