Bacteriostatic Water

The standard peptide solvent. 0.9% benzyl alcohol.

The standard solvent for reconstituting freeze-dried peptides, sterile, premixed, ready
0.9% benzyl alcohol stops bacterial growth without harming the peptide
Multi-use: the ~28-day window is a contamination limit, not a potency one

Studied for

Reconstituting freeze-dried compounds

≥99% purity HPLC-tested Solvents & Supplies

$19per vial

Free shipping over $200 · ships from the USA

Why researchers choose it

Bacteriostatic water is sterile water with a touch of benzyl alcohol (0.9%), the everyday solvent for mixing freeze-dried peptides. The preservative keeps bacteria from multiplying without harming the peptide, which is what gives an opened vial its roughly 28-day sterility window.

How much, and how many vials for a full cycle?

Protocol and cycle-length questions get answered in the Complete Peptide Guide, not here. These listings carry no dosing.

This compound is supplied for laboratory research use only and is not for human or veterinary consumption. The research summarized here describes published third-party findings, not outcomes from Limitless Peptides, and is not dosing guidance or medical advice. These statements have not been evaluated by the Food and Drug Administration; this product is not intended to diagnose, treat, cure, or prevent any disease.

How to verify what you received

Every batch we list is third-party HPLC-tested to ≥99% purity. When your vial arrives, these are the handling and quality-control checks a researcher runs before use.

Appearance
A uniform white to off-white lyophilized cake or powder with a consistent fill. Copper peptides carry a characteristic blue tint.
Purity documentation
Our material is third-party HPLC-verified to ≥99% purity and identity before it is listed.
Sealed packaging
An intact flip-top seal and rubber stopper, with the compound and batch clearly labeled.
Clean reconstitution
Dissolves into a clear, particulate-free solution once bacteriostatic water is added.

Commonly studied alongside

Acetic Acid(10 ml)

The 0.6% sterile solvent for IGF-1 peptides. Not a peptide itself.

$17

What the research reports 5 citations

Sterile water with 0.9% benzyl alcohol preservative, the standard solvent used with most freeze-dried peptides.DailyMed
At 0.9%, benzyl alcohol is bacteriostatic, meaning it prevents bacterial multiplication, without being cytotoxic at the volumes used.DailyMed
The roughly 28-day window after first puncture is a contamination limit, not a potency one.peptidedosages
The preservative guards against bacterial growth and does nothing for a peptide's own shelf life, which is compound-specific.peptidedosages
Supplied premixed in 10 mL and 30 mL vials: clear, colourless, no preservative odour, no particulates.DailyMed

Bacteriostatic Water$19