What is Bacteriostatic Water?

Bacteriostatic Water for Injection is sterile, non-pyrogenic water that contains 0.9% benzyl alcohol, a preservative that inhibits the growth of bacteria. It is primarily used to dilute or dissolve medications for injection—such as peptides, hormones (HCG, HGH, testosterone), and botulinum toxins (Botox®).

What is Sterile Water for Injection?

Sterile Water for Injection is ultra-pure, sterile water with no antimicrobial agents or preservatives. It is single-use only and is intended to dilute medications for immediate use in intravenous, intramuscular, or subcutaneous injection.

Is Sterile Water the Same Thing as Bacteriostatic Water?

No. Sterile Water for Injection: NO preservatives; must use entire vial after opening. Bacteriostatic Water: Contains benzyl alcohol; can be used multiple times within 28 days.

What Does Bacteriostatic Mean?

Bacteriostatic means “inhibiting the growth or reproduction of bacteria.” In this case, benzyl alcohol keeps the water free of bacterial contamination for repeated withdrawals from the vial.

Do I Need to Use Bacteriostatic Water?

Use bacteriostatic water if you need to reconstitute a medication or peptide that requires multiple doses from the same vial over several days or weeks. For single-use reconstitution (one-time injection), sterile water may be used.

Can I Buy Bacteriostatic Water Over the Counter?

No. Bacteriostatic water is considered a prescription-only item in the United States and many other countries for safety reasons.

Why Do You Need a Prescription for Bacteriostatic Water?

To prevent misuse, contamination, and ensure safe, sterile administration when reconstituting injectable medications, a prescription is legally required.

Do I Need to Refrigerate Bacteriostatic Water?

Store bacteriostatic water at room temperature (20–25°C/68–77°F), away from light. Do not freeze. Refrigeration is not necessary, but always follow manufacturer’s instructions.

Is There an Alternative to Bacteriostatic Water?

Sterile Water for Injection: Use for single-use applications only Normal Saline (0.9% Sodium Chloride): Sometimes used if compatible with medication—check your medication and provider’s instructions.

What Kind of Water do You Mix for Injections?

Always use medical-grade sterile water or bacteriostatic water, never tap or filtered water, for reconstituting injectable medications or peptides.

Is Bacteriostatic Water Drinkable?

NO—do not drink bacteriostatic water. It is only for injection, due to the presence of benzyl alcohol.

Can I Use Bacteriostatic Water to Reconstitute Botox?

Yes. Bacteriostatic water is preferred for reconstituting Botox® and other similar injectables for safe, repeated dosing.

How Do I Choose the Right Reconstitution Solution?

Read your medication’s package insert or consult your doctor. Most peptides and reconstitutable injectables specify bacteriostatic water. Only use sterile water for one-time, immediate-use injections unless otherwise indicated.

What Can You Use Bacteriostatic Water For?

Reconstitution of peptides (HCG, HGH, BPC-157, TB-500, etc.) Mixing medications for IM, IV, or subcutaneous injection Diluting Botox®, hormone therapies, antibiotics Used in hospital and clinic injection protocols

Do Hospitals Use Bacteriostatic Water?

Yes. Hospitals, clinics, and specialty pharmacies regularly use bacteriostatic water for safe medication mixing, especially for multi-dose purposes.

Is Bacteriostatic Water for Injection Prescription Only?

Yes. Prescription required in the US, Canada, Europe, and many other regions.

What Are the Side Effects of Bacteriostatic Water?

Rare and usually mild when used as directed. Potential risks: Allergic reaction to benzyl alcohol Injection-site redness or irritation Most side effects stem from medication, not the water itself

Can I Use Sterile Water Instead of Bacteriostatic Water?

Yes, for single-use reconstitution and immediate injection. Not for repeated puncturing or multi-dose vials, as you risk bacterial contamination.

Does All Bacteriostatic Water Contain Alcohol?

Yes. All standard bacteriostatic water contains 0.9% benzyl alcohol as the preservative.

Can You Reuse Bacteriostatic Water?

You can withdraw multiple doses from the same vial within 28 days (using a new sterile needle/syringe each time). Never use beyond the expiration date or 28 days after opening.

How Many mL of Bacteriostatic Water to Mix with Peptides?

Follow the manufacturer or prescription instructions—common ratios are 1–5 mL per vial, depending on the drug and intended dose.

How to Use Bacteriostatic Water for Injection?

Sterilize vial tops Draw up water using sterile syringe/needle Inject into powder vial Swirl gently (don’t shake) Withdraw mixed solution for use or storage (per label instructions)

How Long Do Bacteriostatics Take to Work?

Bacteriostatic water acts instantly to halt bacterial growth once contaminated, but remains effective for up to 28 days when handled properly.

Is Reconstitution Water the Same as Bacteriostatic Water?

Not always. Reconstitution water may be sterile water (single-use) or bacteriostatic water (multi-use)—always check your medication’s requirements.

Why Choose Our Bacteriostatic Water & Sterile Water for Injection?

Pharmacy-grade, USP sterile, preservative-free or benzyl alcohol–preserved options Sealed, tamper-evident vials for ultimate safety Perfect for peptides, hormone therapy, Botox, insulin, and research Multi-use vials for cost-effective, contamination-free dosing Individually packaged and shipped discreetly to your door Compliant with all medical and regulatory standards

Bacteriostatic Water and Sterile Water for Injection

Shop Bacteriostatic Water and Sterile Water for Injection for safe, precise medication reconstitution, dilution, and injection. Essential for hospitals, clinics, and home healthcare, these waters provide sterile, contaminant-free solutions for mixing or injecting drugs. Bacteriostatic Water’s antimicrobial agent allows multi-dose use, while Sterile Water for Injection is ideal for single-use procedures. Ensure accurate dosing, infection prevention, and optimal patient care with trusted injectable solutions.

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Bacteriostatic Water Injection by Hospira, Multiple Dose Vials 30 mL 25/Pack (Rx)
Hospira

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Bacteriostatic Water for Injection is a sterile water that contains a small amount of a bacteriostatic agent, usually 0.9% benzyl alcohol, which in...
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Bacteriostatic Water and Sterile Water for Injection

Bacteriostatic Water Injection by Hospira, Multiple Dose Vials 30 mL 25/Pack (Rx)

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