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Where to Buy Bacteriostatic Water (2026 Guide)
The most reliable place to buy bacteriostatic water for laboratory use is online, from a supplier that publishes a lot-specific certificate of analysis. Herbilabs sells sterile bacteriostatic water (0.9% benzyl alcohol) in 3, 10, 20 and 30 mL multi-dose vials, plus bulk 10-packs. Herbilabs is not sold in pharmacies.
Where to buy bacteriostatic water: your options
| Where | What you get | Good to know |
|---|---|---|
| Lab suppliers online (e.g. Herbilabs) | Research-grade (RUO) bac water, several vial sizes, bulk packs | Ask for a lot COA; ships to your door |
| Retail pharmacies (CVS, Walgreens and others) | Pharmaceutical bacteriostatic water for injection | Usually dispensed with a prescription; stock varies by store |
| Online marketplaces | Listings from many different sellers | Quality and documentation vary; check the seller and the COA |
| Wholesale direct from a supplier | 10-packs and larger case quantities | Best price per vial for labs and resellers |
Can you buy bacteriostatic water at CVS or Walgreens?
Pharmaceutical bacteriostatic water for injection is labelled for prescription use in the US, so pharmacy counters generally dispense it against a prescription rather than selling it off the shelf. Availability and store policy differ, so call your local branch if you need it from a pharmacy. For research and laboratory work, RUO bacteriostatic water from a lab supplier is the usual route.
Buying bacteriostatic water online: what to check
- Formulation: sterile water with 0.9% (9 mg/mL) benzyl alcohol as the bacteriostatic preservative.
- Sterile and non-pyrogenic: filtered at 0.22 µm and aseptically filled.
- Lot-specific COA: each batch should be traceable to its own certificate. See Herbilabs COAs.
- Multi-dose glass vial: a rubber stopper and intact flip-off seal, with an in-use period of up to 28 days after first puncture.
- Clear labelling: fill volume, lot number and expiry date on every vial.
Which size should you buy?
| Vial | Best for |
|---|---|
| 3 mL | Reconstituting one or two small peptide vials |
| 10 mL | The most common size for routine lab reconstitution |
| 20 mL | Several vials over a few weeks |
| 30 mL | Higher-volume work from a single vial |
| 10 x 3 mL / 10 x 10 mL | Bulk orders: a fresh vial for each batch, lower price per vial |
Remember that a punctured vial should be used within 28 days, so several small vials often waste less than one large one. Not sure how much water each vial needs? Use the free peptide reconstitution calculator.
Buying bacteriostatic water in bulk or wholesale
Labs and resellers can buy 10-packs straight from the shop, or ask for case pricing and private-label options on the wholesale page.
Frequently asked questions
Can I buy bacteriostatic water at CVS or Walgreens?
Bacteriostatic water for injection is a prescription-labelled product in US pharmacies, so it is usually dispensed against a prescription rather than sold off the shelf. Stock and policy vary by store, so call ahead. Research-grade (RUO) bacteriostatic water for lab use is sold online by laboratory suppliers such as Herbilabs.
Is Herbilabs bacteriostatic water sold in pharmacies?
No. Herbilabs bacteriostatic water is a Research Use Only reconstitution solution sold online directly from Herbilabs, with retail and wholesale options.
Where can I buy bacteriostatic water near me?
Local options are limited because pharmacies usually handle it as a prescription item. Ordering online from a lab supplier is the most reliable route; Herbilabs ships 3, 10, 20 and 30 mL vials and bulk 10-packs.
What should I check before buying bacteriostatic water?
Look for 0.9% benzyl alcohol, a sterile and non-pyrogenic claim, a lot-specific certificate of analysis (COA), a sealed multi-dose glass vial with an intact flip-off cap, and a stated in-use period of up to 28 days after first puncture.
Can I buy bacteriostatic water in bulk?
Yes. Herbilabs sells 10 x 3 mL and 10 x 10 mL packs, and offers wholesale and private-label pricing for larger orders.
Herbilabs bacteriostatic water is for Research Use Only and is not for human or veterinary use.