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WA10 - Mixing Solution - 10 ML - Research Use Only
Bacteriostatic Water is 0.9% benzyl alcohol in sterile water for injection — the standard multi-dose-stable reconstitution vehicle for lyophilized research peptides.
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This product is listed in the catalog, but it is not currently available for ordering. Pricing, specifications, and support details remain visible while launch availability is being finalized.
- ✓HPLC purity tested
- ✓COA per lot, on request
- ✓Lyophilized, sealed
- ✓US shipping, tracked
- 0.9% benzyl alcohol preservative enables multi-dose use from a single vial — eliminates single-use waste in multi-day protocols
- Standard reconstitution vehicle for lyophilized research peptides across all compound classes
- Multi-dose stable — maintains sterility across multiple needle punctures throughout protocol duration
- Available in 10 mL and 30 mL vials for single-compound and multi-compound research workflows
- Compatible with standard research peptide pH ranges — no formulation interference
Free shipping on orders over $150
Research Supplies
Need bacteriostatic water, syringes, or an alcohol prep kit? Email us — we can bundle reconstitution supplies with your order.
Ask about a research kit →Need the COA before you order? Request it here.
In your order
What ships when you order Bacteriostatic Water
Lyophilized vial
Sterile-filtered, freeze-dried peptide in glass vial, sealed under inert gas.
Lot ID on every vial
Printed lot ID ties this exact vial to its analytical record.
COA on request
Independent third-party HPLC certificate, matched to your lot, sent on request.
Carrier-tracked shipping
Shipped from a US facility with full carrier tracking and protective packaging.
The Peptific standard
Why researchers buy from Peptific instead of grey-market vendors
Peptide quality is invisible until it isn’t. Lot identity, purity, fill integrity, and chain of custody are the difference between usable research material and wasted budget.
Third-party HPLC tested
Every lot is tested for identity and purity by an independent analytical lab. Certificate of Analysis available on request, tied to the exact lot you receive.
Lyophilized and lot-tracked
Sterile-filtered, freeze-dried, sealed under inert gas. Each vial carries its own lot ID — full chain of custody from fill to delivery.
US-based fulfillment
Orders ship from a temperature-controlled US facility with carrier tracking. No drop-shipping, no opaque overseas relay.
Real support, not a ticket queue
A real person responds to research questions, lot questions, and order questions — usually same business day. No bot triage.
How it works
The Bacteriostatic Water mechanism
Bacteriostatic water uses 0.9% benzyl alcohol as a bacteriostatic preservative — inhibiting microbial replication without sterilizing the solution. This property allows the vial to remain sterile across multiple punctures, making it appropriate for multi-dose peptide reconstitution protocols where a single lyophilized vial is used over days or weeks.
Compound profile
- Composition
- 0.9% benzyl alcohol in sterile water for injection
- Preservative
- Benzyl alcohol 9 mg/mL
- pH
- Approximately 5.0–7.0 (USP specification)
- Standard
- USP formulation, multi-dose vial
- Available volumes
- 10 mL and 30 mL vials
- Use
- Reconstitution vehicle for lyophilized research peptides
- Storage
- Room temperature (15–30°C), protect from light
Product definition
What is Bacteriostatic Water?
Bacteriostatic Water is 0.9% benzyl alcohol in sterile water for injection — the standard multi-dose-stable reconstitution vehicle for lyophilized research peptides.
Bacteriostatic Water for injection (BWFI) contains 0.9% w/v benzyl alcohol in water for injection. Benzyl alcohol is a bacteriostatic agent — it inhibits bacterial growth without acting as a sterilant. The USP formulation meets the requirements for water for injection plus the benzyl alcohol preservative, packaged in multi-dose vials with rubber stoppers that reseal after each needle puncture. In research peptide reconstitution, BWFI is the standard vehicle because: (1) it permits multi-draw use across a study protocol without contamination risk; (2) benzyl alcohol is compatible with the pH range of most peptide solutions; (3) it is commercially available in standard research-grade vials with documented sterility testing. For single-use reconstitution or acute use, sterile water for injection (without benzyl alcohol) is an alternative, but BWFI is the default for any protocol spanning multiple research sessions.
Research audience
Who studies Bacteriostatic Water?
Bacteriostatic water is required by any researcher working with lyophilized research peptides. It is the reconstitution vehicle for all peptide classes including GLP-1 analogs, GHRPs, GHRH analogs, repair peptides, and melanocortin compounds. Any lab using Peptific's lyophilized compounds needs bacteriostatic water as a supporting reagent.
Research context
What does the preclinical literature say about Bacteriostatic Water?
Bacteriostatic water is a USP-defined pharmaceutical formulation rather than a research compound — its characterization is regulatory rather than experimental. The 0.9% benzyl alcohol concentration is the established preservative level that inhibits bacterial growth across the range of storage temperatures and use durations typical of multi-dose pharmaceutical vials. In research peptide applications, the reconstitution vehicle can affect peptide stability, aggregation, and bioactivity. Bacteriostatic water's neutral pH, low ionic strength, and benzyl alcohol preservative profile are compatible with the reconstitution requirements of most peptide classes. For peptides with specific pH sensitivity (e.g., those prone to aggregation at neutral pH), alternative reconstitution vehicles such as dilute acetic acid or phosphate buffer may be used — but BWFI is the default for the majority of research peptide protocols. The 10 mL vial is appropriate for single-compound use across a typical research protocol window. The 30 mL vial serves laboratories running multiple concurrent compound protocols or higher-throughput research designs where separate reconstitution events are frequent.
Common questions
Why use bacteriostatic water instead of sterile water?
Is benzyl alcohol compatible with all research peptides?
How should reconstituted peptide vials be stored after using bacteriostatic water?
Research Use Only
Sold for laboratory and research purposes only. Not approved for, nor intended for, human or veterinary consumption, diagnostic use, or therapeutic application. These products have not been evaluated by the Food and Drug Administration. Keep out of reach of children. For use by qualified researchers only.
Nothing on this page constitutes medical advice, a treatment recommendation, or a clinical protocol. Consult a qualified healthcare provider before making any health or treatment decisions.
By accessing this product page you confirm that you are a qualified researcher aged 18 or older and that you will use this product solely for lawful laboratory research purposes. View Research Use Policy