15% off all orders, Min spend £100 CODE: WELCOME15 Ends 4TH OCTOBER

    Research use only — not for human consumption
    Batch 24-B released 14.07.26 · UK & EU dispatch within 24h
  

Before you continue

Are you 18 or over?

Everything on this site is supplied as a laboratory reference material for in-vitro research use only. Nothing here is a medicine, and nothing here is licensed for administration to humans or animals.

By entering you confirm you are aged 18 or over, that you are acquiring these materials for legitimate research purposes, and that you will not administer them to any person or animal.

No, take me back

      Read our compliance policy and terms of sale.
    

  Catalogue
   / Supplies  / Bacteriostatic water

Bacteriostatic water vial, Connect Peptides

      In stock
      UK dispatch 24h
          

Bacteriostatic water

0.9% benzyl alcohol preserved water, 10ml

Bacteriostatic water (bac water) for reconstituting lyophilised research peptides. 10ml multi-dose vial preserved with 0.9% benzyl alcohol — the standard choice for everyday research use.

Not compatible with Retatrutide

This bacteriostatic water is not compatible with Retatrutide. For Retatrutide reconstitution, use Genetek or Hospira bacteriostatic water instead.

99.4%

HPLC purity

Open dosing calculator →

What is Bacteriostatic water?

Sterile water containing 0.9% benzyl alcohol as a bacteriostatic preservative, allowing a reconstituted vial to be drawn from repeatedly over a period of weeks rather than a single use.

Supplied in a sealed 10ml multi-dose vial. Store at room temperature away from light.

Storage & handling

Before reconstitution

Storage: Store at 20–25°C (68–77°F) in a clean, dry place away from direct sunlight and excessive heat. Do not freeze. Refrigeration is not required.

After reconstitution

Storage: Store at 20–25°C (68–77°F) in a clean, dry place away from direct sunlight and excessive heat. Do not freeze. Refrigeration is not required.

Frequently asked questions

What is bacteriostatic water used for?

Bacteriostatic water (bac water) is sterile water preserved with 0.9% benzyl alcohol, used to reconstitute lyophilised research peptides. The preservative lets a vial be drawn from repeatedly over several weeks rather than used once.

Related research materials

Hospira Bacteriostatic Water 30mL

99.2%

£19.99

Genetek bacteriostatic water

99.2%

£4

Convi Pen

Reusable Peptide Pen

£28

NovoPen 4

Reusable 3ml cartridge pen, 1–60 unit dial

£25

Research guides

How to reconstitute a lyophilised peptide How to store research peptides How to read a certificate of analysis Bacteriostatic water vs sterile water Are research peptides legal in the UK?

Supplied strictly as a laboratory reference material for in-vitro research. Not a medicine, food or cosmetic. Not for human or veterinary consumption, diagnostic or therapeutic use.