Technical Data Sheet
Bacteriostatic Water
Also Known As: Bac water, BAC water, Bacteriostatic water, Bac. water, BW, 0.9% benzyl alcohol water, Sterile water with benzyl alcohol, Multi-dose vial diluent, Preserved sterile water, Reconstitution water, Peptide reconstitution water, Sterile diluent, Injectable water preservative, Bacteriostatic Water, reconstitution, diluent, sterile water with benzyl alcohol, preservative, bac water, bact water
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| Evidence Tier | Supply |
|---|---|
| Category | Immunity & Wellness |
| Class | Sterile preserved aqueous diluent (0.9% benzyl alcohol) |
| Molecular Target | No pharmacological target; benzyl alcohol inhibits microbial growth in reconstituted peptide vials |
| Sequence | n/a |
| Molecular Weight | n/a |
| CAS | n/a |
| Parent | Sterile water for injection + 0.9% benzyl alcohol |
| Mechanism | It contains 0.9% benzyl alcohol. This alcohol stops bacteria from copying themselves and spreading, keeping the water totally clean and safe for mixing with peptides over several weeks. |
| Studied For | Reconstituting lyophilized peptides, Multi-dose peptide reconstitution, Preventing microbial growth in reconstituted vials, Peptide solubilization, HGH reconstitution, Semaglutide reconstitution, Peptide injection preparation, Research peptide diluent, Bacteriostatic preservation of peptide solutions, Injectable preparation vehicle, peptide reconstitution, injection preparation, sterile dilution, vial prep |
| Administration Route | Injection Only |
| Form | solution |
| Diluent | n/a |
| Storage Temperature | controlled room temperature |
| Light Sensitive | No |
| Freeze / Thaw | avoid |
| Reconstituted Shelf Life | 28 Days |
| Handling Notes | Up to ~28 days refrigerated once opened. |
| Regulatory | Reconstitution supply. |
| Sources |