Evo H2O

Evo H2O is bacteriostatic water (BAC water): sterile water containing 0.9% benzyl alcohol as a preservative. It is supplied as a reconstitution solution for lyophilized research peptides, and the preservative is what allows a vial to be accessed more than once in laboratory use. Each lot is independently tested by ILS Laboratories, an ISO/IEC 17025 accredited lab, and the batch Certificate of Analysis is published on this page and in the COA library.

Researchers looking to buy bacteriostatic water in the USA can order Evo H2O directly from Evo Peptides in 3 mL and 10 mL vials, with same-day dispatch on orders placed before 3:00 PM CST. Free shipping on orders $200+ via USPS Ground Advantage, with UPS 2nd Day Air and Next Day Air available at checkout.

Evo H2O is supplied as a laboratory diluent for in vitro research. Common applications include:

• Reconstituting lyophilized research peptides
• Preparing stock solutions at a known concentration (mg/mL)
• Multi-withdrawal protocols where a preserved diluent is required
• Diluent for comparative peptide research panels
• General laboratory reconstitution and dilution

• 0.9% benzyl alcohol — preservative content verified by HPLC on the batch COA
• 8-test QC panel from ILS Laboratories, including sterility and endotoxin
• Batch COA published online — viewable on this page and in the COA library
• Available in 3 mL and 10 mL vials
• Same-day dispatch before 3:00 PM CST from Boyd, WI
• Free shipping on orders $200+ — UPS 2-day and next-day upgrades available
• US-based supplier — EP BioResearch LLC

What is Evo H2O?
Evo H2O is Evo Peptides' bacteriostatic water: sterile water with 0.9% benzyl alcohol, supplied as a reconstitution solution for lyophilized research peptides.

What is bacteriostatic water?
Bacteriostatic water, often called BAC water, is sterile water that contains 0.9% benzyl alcohol. The benzyl alcohol acts as a preservative that inhibits bacterial growth, which is why it is used when a vial will be accessed more than once.

What sizes does Evo H2O come in?
Evo H2O is available in 3 mL ($6.95) and 10 mL ($19.95) vials. All sizes ship same-day from Wisconsin on orders placed before 3:00 PM CST.

How is bacteriostatic water different from sterile water?
Sterile water contains no preservative and is single-use. Bacteriostatic water contains 0.9% benzyl alcohol, so a vial can be used across multiple withdrawals.

How much bacteriostatic water do I add to a peptide vial?
Concentration equals peptide mass in mg divided by water volume in mL. Use the Peptide Reconstitution Calculator to work out the volume for a target concentration.

How should Evo H2O be stored?
Store unopened vials at room temperature (20–25 °C), away from heat and direct light. Do not freeze. Multi-use vials of bacteriostatic water are commonly discarded 28 days after first puncture.

Is a COA available for Evo H2O?
Yes. Each lot is tested by ILS Laboratories and the batch Certificate of Analysis is published on this page and in the COA library.

Is Evo H2O for human use?
No. Evo H2O is sold strictly for in vitro laboratory research use. It is not for injection, not approved for human or veterinary use, and not intended for consumption, diagnosis, or treatment.