Buy Bacteriostatic Water in United States
Bacteriostatic water (often shortened to BAC water) is sterile water containing 0.9% benzyl alcohol — the standard diluent used to reconstitute lyophilised research peptides into solution. The benzyl alcohol is bacteriostatic, meaning it suppresses microbial growth, so a reconstituted multi-use research vial stays stable across repeated laboratory draws over several weeks under refrigeration. New-U supplies USP-grade bacteriostatic water in sealed 3 ml and 10 ml vials, in full 10-vial research packs.
What is Bacteriostatic Water?
Bacteriostatic water (often shortened to BAC water) is sterile water containing 0.9% benzyl alcohol — the standard diluent used to reconstitute lyophilised research peptides into solution. The benzyl alcohol is bacteriostatic, meaning it suppresses microbial growth, so a reconstituted multi-use research vial stays stable across repeated laboratory draws over several weeks under refrigeration. New-U supplies USP-grade bacteriostatic water in sealed 3 ml and 10 ml vials, in full 10-vial research packs.
How Bacteriostatic Water is used in the lab
In the lab, bacteriostatic water is the reconstitution medium of choice for almost every lyophilised peptide: the powder is dissolved by adding a measured volume of BAC water, and the 0.9% benzyl alcohol keeps the resulting stock solution free of bacterial growth across repeated handling — unlike plain sterile or preservative-free water, which is single-use. Working out the volume is a simple concentration calculation (volume = mass ÷ target concentration); New-U's free reconstitution calculator computes it for any peptide. Supplied strictly as a laboratory consumable for research use.
Why labs choose New-U Bacteriostatic Water
Every batch of New-U bacteriostatic water is USP-grade and sterility-assured, filled into sealed, tamper-evident vials with batch traceability. We ship it direct in full 10-vial packs (3 ml and 10 ml) so a lab keeps enough diluent on hand for a complete run of reconstitutions — no single-vial mark-ups and no relabelled stock.
Priced in USD; your local currency is applied at checkout.
Is Bacteriostatic Water legal in United States?
The short answer: bacteriostatic water is a laboratory consumable and can be bought in United States for research and reconstitution use. Here is what researchers ask most.
Bacteriostatic water is sterile water containing 0.9% benzyl alcohol — a laboratory consumable used to reconstitute lyophilised research compounds. It is not a medicine and not a controlled substance; New-U supplies it strictly as a research and reconstitution consumable for laboratory use in United States. As with everything New-U ships, it is sold for laboratory and research use only.
Nothing on this page is medical advice or a recommendation to administer any compound to a person.
All products are supplied strictly for laboratory and research use only — not for human or veterinary use. 21+.
How to buy Bacteriostatic Water in United States
Choose your Bacteriostatic Water pack
Open the bacteriostatic water page and pick 3 ml or 10 ml vials. It ships as a full 10-vial research pack — not single vials — so you have enough diluent for a complete run of reconstitutions.
Check the batch & seal
Every vial is USP-grade, sealed and tamper-evident, with batch traceability. Confirm the seal is intact on arrival before use.
Pay by card or crypto
Checkout accepts debit/credit cards and crypto. Prices settle in USD; your local currency is shown at checkout. Tracked United States delivery is a flat fee, free over the threshold.
Receive your tracked order
Orders ship within 24 hours, discreetly packed. Most United States orders arrive in roughly 6–14 business days with email + SMS tracking.
United States delivery & payment
Buying Bacteriostatic Water in United States — FAQ
What is bacteriostatic water?
Bacteriostatic water (BAC water) is sterile water with 0.9% benzyl alcohol added as a bacteriostatic preservative. It is the standard diluent for reconstituting lyophilised research peptides, and the preservative lets a reconstituted vial be drawn from repeatedly over several weeks. Supplied for laboratory and research use only — not for human use.
What is the difference between bacteriostatic water and sterile water?
Plain sterile water carries no preservative, so it is single-use — once opened it must be discarded. Bacteriostatic water contains 0.9% benzyl alcohol, which suppresses microbial growth and lets a reconstituted multi-use research vial stay stable across repeated draws. For multi-use vials, bacteriostatic water is the standard choice.
How long does bacteriostatic water last once opened?
Thanks to the benzyl alcohol preservative, an opened vial of bacteriostatic water is typically usable for around 28 days when stored refrigerated and handled with sterile technique. Always follow the batch label and your own laboratory protocols.
How much bacteriostatic water is needed to reconstitute a peptide?
It depends on the peptide mass and the stock concentration you want for your study — it is a simple calculation (volume = mass ÷ target concentration). Our free reconstitution calculator works out the volume for any peptide. New-U provides this as a math utility only, not as dosing guidance.
Ready to buy Bacteriostatic Water in United States?
Bacteriostatic water (often shortened to BAC water) is sterile water containing 0.9% benzyl alcohol — the standard diluent used to reconstitute lyophilised research peptides into solution. The benzyl alcohol is bacteriostatic, meaning it suppresses microbial growth, so a reconstituted multi-use research vial stays stable across repeated laboratory draws over several weeks under refrigeration. New-U supplies USP-grade bacteriostatic water in sealed 3 ml and 10 ml vials, in full 10-vial research packs.