Buy Hospira bacteriostatic water 10 mL with confidence: learn what it is, how it's used for peptide reconstitution, storage tips, and safety basics.
You can buy Hospira bacteriostatic water 10 mL as a sterile, multi-dose vial of water for injection that contains 0.9% benzyl alcohol as a preservative. Hospira, now part of Pfizer, manufactures it so that lyophilized drug powders can be dissolved before they are drawn into a syringe. In the United States it is a prescription product when it is intended for human use, and many online listings sell it as a laboratory research item instead.
Those three facts — preservative, volume, and legal status — drive almost everything else about the product, including which size you should order and how you should store it.
What Is Actually Inside a Hospira Bacteriostatic Water 10 mL Vial
Bacteriostatic water is sterile water for injection with 0.9% benzyl alcohol added, and that preservative is what allows one vial to be punctured more than once. Benzyl alcohol does not sterilize the vial, but it stops most bacteria from multiplying when a needle introduces a small number of organisms.
A standard Hospira 10 mL vial is a glass container with a rubber stopper and an aluminum crimp seal. The labeling generally states:
- Contents: Water for Injection, USP
- Preservative: Benzyl alcohol 0.9% (9 mg per mL)
- Fill volume: 10 mL in a multiple-dose vial
- pH range: approximately 4.5 to 7.0
Bacteriostatic water is not the same as sterile water for injection, which contains no preservative, and it is not normal saline. Confusing those three products is one of the most common mistakes made during home reconstitution.
Bacteriostatic Water vs. Sterile Water vs. Normal Saline
| Product | Preservative | Repeated punctures? | Typical use |
|---|---|---|---|
| Bacteriostatic water for injection | 0.9% benzyl alcohol | Yes, within the labeled beyond-use date | Reconstituting multi-dose drug and peptide vials |
| Sterile water for injection | None | No — single use only | Diluting a drug for one-time use |
| Normal saline (0.9% NaCl) | None unless labeled bacteriostatic | Single use unless preserved | IV fluids, flushing, some drug dilution |
Preservative-free sterile water is the right choice when a drug will be used immediately and the rest of the container discarded. Normal saline is chosen when the drug's labeling or the patient's needs call for an isotonic sodium chloride solution. Bacteriostatic water wins when the same container will be entered repeatedly over days or weeks.
Why 10 mL Is the Most Common Size for Peptide Reconstitution
Most lyophilized peptide vials hold between 2 mg and 10 mg of powder and are reconstituted with 1 mL to 3 mL of diluent. A bacteriostatic water 10 ml vial typically covers several small vials, while a larger bottle may sit unused past its recommended beyond-use window.
The arithmetic is simple. Add 2 mL of diluent to a 5 mg vial and each milliliter of the resulting solution contains 2.5 mg of powder. Changing the diluent volume changes the concentration; it never changes the total amount of peptide in the vial.
One caveat deserves attention: benzyl alcohol can affect the stability of certain peptides and proteins, and some products are labeled for reconstitution with preservative-free water. Follow the instructions that came with your specific product, and ask a pharmacist if those instructions are unclear.
Sizes, Packs, and What to Compare Before You Order
| Format | Volume | Best for | Notes |
|---|---|---|---|
| Single 10 mL vial | 10 mL | Occasional reconstitution and small batches | The most common single-vial size sold in the US |
| Single 30 mL vial | 30 mL | Clinics and higher-volume workflows | More product per bottle, more waste if it expires unused |
| 25 pack of 10 mL vials | 25 x 10 mL | Labs, clinics, and frequent users | Lowest cost per vial, but check every expiration date |
Buyers weighing hospira bacteriostatic water 30ml against a 10 mL vial usually find that the bigger bottle only makes sense for frequent reconstitution or a clinical setting. The hospira bacteriostatic water 25 pack lowers the cost per vial, but it also means committing to 250 mL of product that may expire before it is used.
Supply channel matters more than price. When people ask bacteriostatic water where to buy, the dependable answers are licensed US pharmacies, hospital distributors, and medical suppliers that verify a prescription or an institutional account.
Safety, Storage, and Legal Points US Buyers Should Know
- Bacteriostatic water is a diluent and is never injected on its own.
- The benzyl alcohol content makes the product unsafe for newborns and inappropriate for intravascular or intrathecal use.
- Vials should be stored at 20-25 °C (68-77 °F), protected from freezing, and kept out of direct light.
- Unless the manufacturer states otherwise, the USP default beyond-use date for a multiple-dose vial is 28 days after the first puncture.
- Bacteriostatic water for injection is a prescription product in the US when it is used to prepare drugs for human use.
Anyone who needs to know where to buy bacteriostatic water for peptides should expect a pharmacy-style transaction with a prescription or a verified professional account, not a one-click consumer checkout.
How to Tell a Genuine Hospira Vial From a Questionable Listing
- Compare the label print quality, lot number, and expiration date against the carton.
- Confirm the crimp seal is intact and the rubber stopper has not been punctured.
- Ask how the seller ships the product, because extreme heat and freezing both damage the vial.
- Verify the seller's pharmacy license or distributor credentials in your state.
- Be skeptical of prices that fall far below typical pharmacy rates.
Counterfeit and relabeled vials do appear in this category, and the preservative content is not something a buyer can verify at home. When a vial seems questionable, dispose of it and buy from a licensed source instead.
None of this information is medical advice. If you plan to reconstitute a prescription medication, confirm the diluent, the volume, and the storage rules with a pharmacist or physician before you begin.
Frequently Asked Questions
Is Hospira bacteriostatic water 10 mL safe to inject?
Bacteriostatic water is a diluent, not a medication, so it is never injected on its own. It is intended for reconstituting prescription drugs when a healthcare professional directs that use, and it must not be given to newborns or used intravascularly or intrathecally because of its benzyl alcohol content. Talk with a pharmacist or physician before any personal use.
Where can I buy bacteriostatic water in the US?
The reliable options are licensed US pharmacies, hospital supply distributors, and medical suppliers that require a prescription or an institutional account. Bacteriostatic water for injection is a prescription product when it is intended for human use. Listings that sell it as a casual consumer item with no credential check are a red flag.
How long does a 10 mL vial of bacteriostatic water last?
Follow the manufacturer's labeling first; when a label is silent, the USP default beyond-use date for a multiple-dose vial is 28 days after the first puncture. Store vials at 20-25 °C (68-77 °F) and protect them from freezing. Discard the vial if the solution looks cloudy or contains visible particles.
This page provides educational research information and does not replace medical advice, diagnosis, or treatment.