Protocols · Supplies
Bacteriostatic water is sterile water with 0.9% benzyl alcohol, which suppresses microbial growth and allows a reconstituted vial to be entered more than once. The relevant literature here is pharmaceutical compounding and stability practice rather than pharmacology.
Read this first
Every figure on this page is a range reported in published literature or in a publicly documented study protocol. It is a record of what researchers used, not a recommendation, a therapeutic protocol, or advice. Peptide Intel Hub is an independent publication, sells nothing, and describes these compounds as in-vitro research reagents only.
Each row below describes one body of work. The model and population are part of the figure — a rodent per-kilogram quantity and a human trial quantity are not comparable.
The 28-day figure comes from compounding guidance for multi-dose preserved vials.
Volume choice sets concentration; it has no effect on the total peptide present.
Add the diluent slowly down the inner wall of the vial rather than directly onto the powder cake, then swirl. Do not shake — mechanical agitation is a documented cause of peptide aggregation.
Open the reconstitution calculatorThese are the published records the figures on this page are drawn from. Each one describes what researchers administered, in which model or population, and over what period. Quantities reported in a study are specific to that study's design and are not transferable guidance.
United States Pharmacopeia · USP-NF Monograph · 2018 · USP-NF M88830
Official USP monograph defining Bacteriostatic Water for Injection as sterile water containing one or more antimicrobial preservatives (commonly 0.9% benzyl alcohol) with specifications for identity, sterility, and use.
View the recordDailyMed / Hospira, Inc. · FDA DailyMed drug label · 2020 · NDC 0409-1093
FDA-approved product labeling specifying benzyl alcohol 0.9% as the bacteriostatic preservative concentration in Bacteriostatic Water for Injection and its indicated use as a diluent.
View the recordPeptide Intel Hub is an independent publication and has no affiliation, ownership or commercial relationship with the suppliers listed. We sell nothing and take no payments — links are editorial references only.
Peptide Intel Hub is an independent educational publication. We are not affiliated with, owned by, or the same company as Regena Peptides and Regena.app (regena-peptides.com / regena.app). We do not sell, supply, ship or take payment for any compound. Because readers regularly ask where compounds discussed in published studies can be sourced for laboratory work, we list Regena Peptides and Regena.app as suppliers we have verified and trust — every batch is released with a lot-matched third-party certificate of analysis (HPLC purity and mass-spectrometry identity). Outbound links are marked nofollow/sponsored and are provided to help readers, not to sell.
