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Supplies · Cosmetic only

Bacteriostatic Water

aka BAC Water (0.9% benzyl alcohol)

4.9· 8 reviews
Bacteriostatic Water — 1 vial · 1 g cosmetic-grade powder, Regena Peptides
1 vial · 1 g · cosmetic only
4.9 / 5

Preserved sterile diluent for lyophilised research peptides.

Class
Reconstitution diluent
Half-life
N/A — solvent
Format
1 vial · 1 g
Use
Cosmetic only

Kit of 10 × 10 ml vials · cosmetic only

€149.00

Mix with hyaluronic acid serum · apply topically

32 kits sold this week
Quantity
1
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  • HPLC ≥99%COA per batch
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Free tracked EU shipping on orders over €300. Discreet packaging. Ships from Spain within 24h.
Every batch HPLC + mass-spec tested. COA available on request — view the COA library.

What is Bacteriostatic Water?

Bacteriostatic water is sterile water preserved with 0.9% benzyl alcohol. It is the default diluent for reconstituting lyophilised research peptides where multi-day vial use is anticipated.

Mechanism of action

Sterile water preserved with 0.9% benzyl alcohol to inhibit microbial growth across multi-vial research use.

Primary research areas

Standard reconstitution diluent for lyophilised research peptides.

Research notes

  • Once reconstituted, vials are typically stored refrigerated for the protocol's stability window.
  • Use acetic acid instead for hydrophobic peptides that will not fully dissolve.

Why researchers buy from Regena

HPLC ≥99% purity

Every batch independently tested. Mass spectrometry verification on every research compound. COAs on request.

Single 1 g vial, sealed

Lyophilized cosmetic-grade powder in a rubber-stoppered amber vial, batch-coded. Stable for shipping; cool, dry storage on arrival.

Ships from Spain, EU-wide

Tracked delivery 5–14 days across the EU. Discreet, plain packaging. UK & worldwide options.

Secure SEPA bank transfer

Encrypted checkout, verified IBAN. No card details stored. Card payment links available on request.

How ordering works

  1. 1

    Add Bacteriostatic Water to your cart above

    Sold as a single 1 g cosmetic-grade vial. Mix with a hyaluronic acid serum and apply topically — cosmetic use only.

  2. 2

    Secure checkout in under 2 minutes

    Add to cart, fill in shipping, get your IBAN and order reference instantly.

  3. 3

    Pay by bank transfer (or card on request)

    Bank transfer is fastest and fee-free. Need a card? Message us on WhatsApp and we'll send a payment link.

  4. 4

    We ship within 24 hours

    You get a tracking number by email + WhatsApp. EU delivery 5–14 days. COA included on request.

Frequently asked questions

Research-use disclaimer

Information on this page is provided for educational and scientific reference purposes only. Bacteriostatic Water is a research compound intended for in-vitro laboratory investigation by qualified professionals. Nothing here constitutes medical advice, dosing guidance or a recommendation for human or veterinary use. Half-life and mechanism descriptions reflect published literature approximations.

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Bacteriostatic Water — shipped to research hubs worldwide

Same HPLC-verified Bacteriostatic Water batch, same COA — tracked delivery to laboratories and independent researchers across Europe, the UK, the USA and beyond. Pick a hub for local shipping window and currency notes.

View every research hub we ship to →Browse the full peptide librarySite index

Customer reviews

What researchers say about Bacteriostatic Water

4.9· 8 reviews
  • Verified

    COA matched batch number exactly

    Ordered three batches of BPC-157 over four months. Each shipment arrived cold-packed with a COA and the batch numbers cross-checked against the public testing database. Purity reported between 98.7% and 99.2% — consistent with what we measured in-house by HPLC.

    Dr. M. AnderssonStockholm, Sweden
  • Verified

    Fast UK delivery, clean reconstitution

    Discreet packaging, arrived in 5–14 days to London. Lyophilised cake was firm, dissolved completely in bac water with no cloudiness. Dose math in IU on the calculator made repeat dosing trivial.

    J. WhitmoreLondon, UK
  • Verified

    Best documentation I've seen from a supplier

    We compared three suppliers as part of a sourcing audit. Regena was the only one with chromatograms, retention times and lab-named COAs published per batch. That's the standard the rest of the industry should meet.

    Prof. L. RomanoMilan, Italy
  • Verified

    Good product, customs took an extra day

    Product itself is excellent — clean reconstitution, COA available. Customs added 24 hours which is outside Regena's control. Support replied within an hour when I asked for an update.

    K. PetersenCopenhagen, Denmark
  • Verified

    Independent lab agreed with stated purity

    We sent a sub-sample to an independent lab. Their result was within 0.4% of the published Regena COA. That's a level of transparency you almost never see in research-peptide sourcing.

    Dr. S. PatelBirmingham, UK
  • Verified

    Cold chain held the whole way

    Temperature indicator strip in the package stayed in the green. Vials still chilled on arrival despite a 3-day route. Whoever packs these boxes knows what they're doing.

    A. MüllerBerlin, Germany

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Researching Bacteriostatic Water?

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Regena Peptides. (2026-08-01). Bacteriostatic Water — HPLC-verified research peptide. https://www.regena-peptides.com/peptides/bacteriostatic-water

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