Bacteriostatic water by Dragon Pharma
What Is Bacteriostatic Water?
Bacteriostatic water is sterile water with 0.9% benzyl alcohol - the standard solvent for reconstituting lyophilized (freeze-dried) research peptides into injectable solutions. Dragon Pharma supplies it in injection-grade vials.
The benzyl alcohol is what makes it bacteriostatic: it keeps the solution usable for about 28 days after the first puncture, instead of the single-use window of plain sterile water. It is the quiet essential of every peptide stack - BPC 157, AOD 9604, GLP-1 research compounds all start with a vial of this.
How to Use Bacteriostatic Water
Bacteriostatic water is the standard diluent for reconstituting lyophilized research peptides. The 0.9% benzyl alcohol keeps the solution safe for multiple draws over several weeks, which is exactly what a multi-dose peptide vial needs.
| Step | Practice |
|---|---|
| 1. Prepare | Wipe the vial stoppers with an alcohol swab before every draw |
| 2. Inject diluent | Draw the needed volume and inject it slowly into the peptide vial |
| 3. Roll, do not shake | Swirl gently until the powder dissolves; shaking damages peptides |
| 4. Store | Keep the reconstituted vial refrigerated between doses |
| 5. Discard | Follow the protocol window for the mixed vial |
Use an insulin syringe for small volumes and always use a fresh needle for each draw from the multi-dose vial.
Bacteriostatic Water Compatibility
This diluent is used across the Dragon Pharma lyophilized line. Common reconstitution volumes:
| Peptide line | Typical reconstitution |
|---|---|
| BPC 157 / TB 500 | 1-2 ml per vial |
| GHK-Cu 10 mg / GHK-Cu 50 mg | 1-3 ml, generous dilution reduces sting |
| Ipamorelin / CJC-1295 Dac | 1-2 ml per vial |
| Sermorelin / Tesamorelin | 1-2 ml per vial |
| Retatrutide / Sema-Pep | Per research protocol |
The right dilution makes microgram dosing simple: more diluent means each unit on the syringe holds fewer micrograms.
Bacteriostatic Water Safety
Bacteriostatic water is a sterile solvent, not a medication - its safe use is about handling.
- Sterility - once opened, the vial is for multi-dose use within the recommended window.
- Alcohol wipe - always clean the stopper before every draw.
- Single-use needles - never reuse a needle between vials or people.
- Storage - keep unopened vials cool and dry; refrigerate after opening if the protocol says so.
This page is a product reference for research purposes. It does not replace medical advice, bloodwork review or local laws.
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Used it to mix a few peptides, everything dissolved properly and easy to handle. No pain or irritation after injections. Simple product but does the job right. Shipping was quick and discreet.
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If you’re running peptides and not using this, you’re asking for problems. Mixes clean, no irritation, keeps everything smooth. Been using it for all my vials, zero issues. Pack came tight, no leaks.
What is bacteriostatic water?
Bacteriostatic water is sterile water with 0.9% benzyl alcohol - the standard solvent for reconstituting lyophilized research peptides. The preservative keeps it usable about 28 days after first puncture.
Where can I buy bacteriostatic water?
Dragon Pharma supplies injection-grade bacteriostatic water 0.9% in vials - the same solvent used with its research peptide line, including BPC 157, AOD 9604 and GLP-1 compounds.
How much bacteriostatic water do I mix with a 10 mg peptide?
A common reference: 1 mL of water into a 10 mg vial gives 10 mg per mL. From there, insulin syringe markings make the dose easy to calculate - for example 0.1 mL of that mix is 1 mg.
How long does bacteriostatic water last?
Unopened, until the expiry on the label. After the first puncture it stays usable about 28 days because of the benzyl alcohol preservative - plain sterile water, by comparison, is single-use.
Is bacteriostatic water the same as sterile water?
No. Sterile water has no preservative and is single-use. Bacteriostatic water contains 0.9% benzyl alcohol, which stops bacterial growth and allows repeated draws over about 28 days.
How do I reconstitute a peptide with bacteriostatic water?
Wipe both vial tops with alcohol, draw the water, inject it slowly down the glass wall of the peptide vial, then swirl gently - never shake. Dose with a fresh insulin syringe each time.
Does bacteriostatic water need refrigeration?
Unopened vials are fine at room temperature, out of light. Once peptides are reconstituted with it, the mixed solution should be refrigerated and used within its window.
Is Dragon Pharma bacteriostatic water safe?
It is an injection-grade, laboratory-quality solvent supplied for research use. Follow sterile handling, discard cloudy vials, and use it only for its intended laboratory purpose.
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