from £59.99
Bacteriostatic Water
Sterile water with 0.9% benzyl alcohol, the usual solvent for mixing freeze-dried peptides. The benzyl alcohol stops bacteria growing, so one vial lasts several draws.
Size: 10ml
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- •10ml size, supplied as sterile solution, 10ml vial
- •Same-day dispatch before 6pm, Royal Mail Tracked 24
Sterile.Sealed.In stock.
Sterile solution. Store at room temperature, away from light.
Sterile
Product information
Sterile water with 0.9% benzyl alcohol added to stop bacterial growth. Used to reconstitute lyophilised peptides in the lab.
- Purity
- Sterile, 0.9% benzyl alcohol
- Form
- Sterile solution, 10ml vial
- Strength
- 10ml
- Molecular weight
- Storage
- Room temperature, away from light
Questions & answers
What is bac water used for?
Bac water is used to reconstitute (mix) freeze-dried research peptides. The 0.9% benzyl alcohol stops bacteria growing, so one vial can be drawn from several times.
Is bacteriostatic water the same as sterile water?
No. Both are sterile, but bacteriostatic water also contains 0.9% benzyl alcohol, which keeps it usable after the first draw. Plain sterile water should be used once and thrown away.
How fast will my order arrive?
Order before 6pm and it ships the same day by Royal Mail Tracked 24. Most UK orders arrive the next working day.
How do I track my order?
We email you a Royal Mail tracking link as soon as your order ships.
What purity is Bacteriostatic Water?
Bacteriostatic Water is sterile, 0.9% benzyl alcohol and supplied as sterile solution, 10ml vial. You can read the lab report at the top of this page.
How should it be stored?
Store at room temperature, away from light. Keep it sealed until you mix it. Once mixed, keep it in the fridge.
Product detail
What you get
In the vial
Bacteriostatic Water 10ml, supplied as sterile solution, 10ml vial and sealed. Sterile, 0.9% benzyl alcohol
In the box
Your vial, packed cold and sealed, sent by Royal Mail Tracked 24. Delivery details.
With the order
A tracking link by email. Returns policy.
What is bacteriostatic water?
Bacteriostatic water, often shortened to bac water, is sterile water with 0.9% benzyl alcohol added. The benzyl alcohol stops bacteria growing once the vial is opened, so you can draw from it more than once. It is the usual choice for mixing freeze-dried peptides.
01
Multi-draw vials
Plain sterile water is single use. This isn't.
02
10ml vial
£4.99 a vial.
03
0.9% benzyl alcohol
This is the standard concentration for bacteriostatic water.
Read more about Bacteriostatic Water
- Bacteriostatic Water: What 0.9% Benzyl Alcohol Does and Does Not DoWhat the 0.9% benzyl alcohol in bacteriostatic water does, where the 28-day multi-dose rule comes from, the 1982 gasping syndrome cases, and when not to use it.24 October 2026 · 8 min read
- How Long Does Bacteriostatic Water Last Once Opened?The 28-day rule for an opened vial of bacteriostatic water, what USP <797>, the CDC and the WHO say, storage temperature, and the signs a vial should be binned.24 October 2026 · 7 min read
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Bacteriostatic Water 10ml
£4.99