V8 Peptides — Engineered Performance
Bacteriostatic Water 10 ml — 10 ml vial
USP grade PURITY✓ IDENTITY TESTED✓ VIEW COA (LOT ARC-BW-52)

Bacteriostatic Water 10 ml

0.9% benzyl alcohol — reconstitution solvent

$15.99

Secure payment by card link, Zelle or crypto · discreet packaging · fast USPS shipping

In stock · ships from the USA via USPS

Sterile 0.9% benzyl alcohol research water solution engineered for multi-dose peptide reconstitution and dissolution studies.

Research applications

  • 01Reconstitution & dilution of lyophilized research peptides
Sizes
10 ml vial
Purity
USP grade
Supplied form
Sterile solution
Storage
Store at room temperature, away from light
Container
Sealed clear glass research vial
USP grade
Measured purity (HPLC)
✓ Batch-specific COA published on our siteView lot ARC-BW-52 COA →How we test →
  • ✓Compound identity & sequence
  • ✓Measured purity (HPLC %)
  • ✓Molecular identity confirmation
  • ✓Batch / lot number
  • ✓Analytical test date
  • ✓Supplied form & storage

Research Use Only. All products are sold strictly for laboratory research and development purposes only. Not for human or animal consumption. Not a drug, food, or cosmetic. By purchasing, you affirm you are a qualified researcher or institution.

Batch documentation

Batch-specific analytical documentation supports receiving, verification, and internal recordkeeping.

Storage guidance

Refrigerate the supplied material, freeze for long-term storage, and protect it from heat, moisture, and light.

Research-only labeling

Every vial is clearly identified for laboratory research use only — not for human or veterinary use.

What Is Bacteriostatic Water?

Bacteriostatic water, usually shortened to BAC water, is sterile water that contains 0.9% benzyl alcohol as a preservative. That works out to 9 mg of benzyl alcohol in every milliliter. "Bacteriostatic" means the preservative inhibits the growth of most bacteria that might enter the vial; it does not sterilize a contaminated solution, and it is not a substitute for clean technique.

In a peptide laboratory BAC water is the default diluent for reconstituting lyophilized material. Plain sterile water has no preservative, so a vial is generally meant to be opened once. The benzyl alcohol in BAC water is what allows a container to be entered through the stopper several times over a working period, which suits labs that draw from the same stock across multiple sessions. V8 Peptides supplies it in a 10 mL sealed glass vial.

Bacteriostatic Water Specifications

ProductBacteriostatic water (BAC water)
Volume10 mL vial
GradeUSP grade
Preservative0.9% benzyl alcohol (9 mg/mL)
FormSterile solution, sealed clear glass vial
StorageRoom temperature, away from light

Reconstitution & Storage for Research

The volume of BAC water added to a peptide vial determines the stock concentration. The formula never changes: concentration (mg/mL) = peptide in the vial (mg) ÷ BAC water added (mL).

Concentration math

  • Adding 2 mL of BAC water to a 10 mg peptide vial gives 5 mg/mL.
  • Adding 1 mL to a 5 mg vial also gives 5 mg/mL.
  • Adding 3 mL to a 30 mg vial gives 10 mg/mL.
  • For a blend, divide each component separately: a 10 mg / 10 mg vial in 2 mL is 5 mg/mL of each peptide.

One 10 mL vial is enough to reconstitute five peptide vials at 2 mL each, or ten vials at 1 mL each. Plan the volume before opening anything, and confirm it with the reconstitution calculator; the calculator guide explains the inputs.

Handling at the bench

  • Wipe both stoppers with 70% isopropyl alcohol and let them dry before transfer.
  • Release the water slowly down the inner wall of the peptide vial, not directly onto the powder.
  • Swirl gently until the solution is clear. Do not shake.
  • Label the peptide vial with the concentration and the preparation date.

Storage conditions

Store unopened BAC water at controlled room temperature and out of direct light. Do not freeze it. After the stopper has been punctured for the first time, write the date on the vial; many laboratories follow the common 28-day convention for preserved multi-use containers and discard what remains after that. Discard the vial sooner if the liquid looks cloudy, discolored or contains particles. Our article does bacteriostatic water expire? covers shelf life in more detail.

Quality & Testing

A diluent touches every sample it is used with, so its quality matters as much as the peptide's. This product is supplied as USP grade with a verified 0.9% benzyl alcohol content, in a sealed vial with lot identification.

  • USP-grade sterile solution
  • Identity verified, with lot number for traceability
  • Documentation available for receiving records

Batch documentation is available through our COA page, alongside the HPLC certificates published for tested peptide lots.

Related Lab Guides

For laboratory research use only; not for human consumption.

Customer reviews

2 verified-buyer reviews · average 5.0 / 5

★★★★★JustinVerified buyer · Oct 2026
★★★★★WesleyVerified buyer · Oct 2026

Fast and efficient shipping!!! Exactly as described!!!! Customer service is excellent!!!!

Frequently Asked Questions

What purity is Bacteriostatic Water 10 ml?+

Bacteriostatic Water 10 ml is verified to USP grade purity by HPLC, with identity confirmed by batch-specific analytical documentation (COA) published on our site.

How is Bacteriostatic Water 10 ml supplied and stored?+

Bacteriostatic Water 10 ml is supplied as a sterile solution. Store at room temperature, away from light.

Do you provide a Certificate of Analysis?+

Certificates of Analysis from our independent lab are published for tested lots (see the COA page), and we add more as reports come back. Contact us for the status of a specific product or lot.

Is Bacteriostatic Water 10 ml approved for human use?+

No. This product is sold strictly for laboratory research and development purposes and is not for human or animal consumption.