Water for injections - 2ml

Sterile Water for Injections 2 ml for sale in the UK

Sterile Water for Injection in a 2 ml glass ampoule is a pharmaceutical-grade, preservative-free diluent used to reconstitute lyophilised compounds such as growth hormone, HCG and peptides. If you want to buy sterile water for injections UK from a verified source, every ampoule sold here is dispatched same working day from our UK warehouse alongside the rest of your order.

What is Sterile Water for Injection?

Sterile Water for Injection is highly purified water that has been filtered, sterilised and sealed under strict pharmaceutical conditions to be free of bacteria, pyrogens and particulates. It contains no preservatives, no buffers and no additives — just water that meets pharmacopoeia standards for parenteral use. Because there is no antimicrobial agent, the contents of the ampoule must be used in a single sitting and any leftover solution discarded; the absence of preservative is precisely why it is the correct solvent for products where benzyl alcohol or other additives could interfere with the active compound or are simply not wanted, for example when injecting an infant, a sensitive peptide, or in certain HCG and IGF protocols.

Sterile Water 2 ml uses

• Reconstitution of HGH (somatropin) for single-shot daily dosing
• Reconstitution of HCG ampoules and peptide vials for immediate use
• Mixing IGF-1 LR3 / IGF-1 DES where preservative-free diluent is preferred
• Compatible with insulin syringes for accurate small-volume draws
• Convenient single-dose 2 ml format — no waste, no contamination risk

The 2 ml volume is sized for one reconstitution at a time, which keeps technique clean and removes the guesswork around how long an opened multi-dose vial is still safe to draw from.

Sterile water vs bacteriostatic water

Sterile water is preservative-free and single-use only — once the ampoule is opened, anything not drawn into the syringe must be discarded. Bacteriostatic water (sold here as Water for injections 5 ml) contains 0.9% benzyl alcohol, which inhibits microbial growth and allows the same vial to be drawn from over roughly 28 days when refrigerated. Choose sterile water when the protocol calls for a preservative-free diluent or when you only need a single shot; choose bacteriostatic water for HGH or peptide vials reconstituted for daily dosing across one to four weeks.

Storage and handling

Store unopened ampoules at room temperature, out of direct sunlight. After mixing with HGH, HCG or peptides, keep the reconstituted vial refrigerated (2–8 °C) and follow the manufacturer's stability window for the active compound. Use a fresh sterile syringe and needle for every draw — pair this ampoule with our syringe, needle and swab pack for a clean injection setup. Discard any unused sterile water once the ampoule is open.

Frequently asked questions

What is the difference between sterile water and bacteriostatic water?

Sterile water is preservative-free and intended for single-use reconstitution. Bacteriostatic water contains 0.9% benzyl alcohol, which suppresses microbial growth and lets the same vial be used for multiple draws across roughly 28 days refrigerated. Pharmacology of the reconstituted compound is otherwise unchanged.

Why use preservative-free water for some peptides?

Benzyl alcohol can degrade certain sensitive peptides and is contraindicated for use in neonates and very low-volume protocols. Preservative-free sterile water removes that variable, which is why some HCG and IGF-1 LR3 instructions specify it. Once mixed, the solution must be refrigerated and any leftover discarded.

Can I keep leftover sterile water after opening?

No. Sterile water for injection contains no antimicrobial preservative, so once the ampoule is broken the contents are only safe for immediate single-use. Any unused volume should be discarded straight after reconstitution. If you need a multi-use diluent, choose bacteriostatic water 5 ml instead.