What it is
Bacteriostatic water for injection is sterile water with a small amount of benzyl alcohol (typically 0.9%) added as a bacteriostatic agent. That preservative is what lets a multi-dose vial keep its sterility across multiple punctures — usually up to 28 days after first access. It is one of the most common reconstitution diluents kept on the bench in physician offices, med spas, and wellness clinics.
Why practices stock it
A multi-dose vial of BAC water is the difference between a tidy bench and a stack of single-use ampoules in the sharps bin. Stocking 10 mL and 30 mL side by side means a clinician can grab the size that matches the draw schedule without overshooting. The product is finished, off-the-shelf, and shipped direct from FDA-registered manufacturers — same authorized-distributor posture you would expect from any major medical supply channel.
How to pick the right pack size
Small bench, single clinician, intermittent reconstitution? 10 mL is usually enough. Higher volume or multiple clinicians sharing a vial across a week? 30 mL is the more efficient pick — fewer vials cycled through, less waste, less re-ordering. Both sizes share the same preservative system, so the only real decision is your weekly draw volume.
Specifications
| Form | Sterile bacteriostatic water for injection |
|---|---|
| Preservative | 0.9% benzyl alcohol |
| Pack sizes | 10 mL · 30 mL multi-dose vials |
| Use | Diluent for reconstitution of compatible lyophilized products |
| Channel | Direct-to-office, authorized distributor |
Pack options
- 10 mL
- 30 mL
FAQ
- What is BAC water made of?
- Bacteriostatic water for injection is sterile water with approximately 0.9% benzyl alcohol added as a preservative. The benzyl alcohol is what gives the multi-dose vial its bacteriostatic property — it keeps microbial growth at bay across multiple needle punctures.
- How long does a multi-dose vial of bacteriostatic water last after first access?
- A multi-dose vial of BAC water is typically labeled for use up to 28 days after first access when stored per the manufacturer’s instructions. Always follow the labeling on the specific vial you have on hand.
- What is the difference between bacteriostatic water and sterile water for injection?
- Sterile water for injection contains no preservative — it is a single-use diluent. Bacteriostatic water adds 0.9% benzyl alcohol so the same vial can be punctured multiple times. Practices that reconstitute on a recurring schedule generally prefer the bacteriostatic format.
- Do you carry 10 mL and 30 mL bacteriostatic water?
- Yes. The two launch pack options for SBB Supply BAC water are 10 mL and 30 mL multi-dose vials. Both are sourced from FDA-registered manufacturers.
- Who can order from SBB Supply?
- SBB Supply is direct-to-office. Ordering is reserved for credentialed physician offices, med spas, and wellness clinics. It is not a consumer storefront.
- How do I place an order?
- Fill out the order form on this page. We confirm by email with payment instructions (Zelle, Venmo, or an emailed invoice) and an order number. Your order ships once payment clears.
- Who can order?
- Anyone. These are legal off-the-shelf consumables. Practices and clinics buying for staff use should check out the bulk pricing page for volume discounts.
Pair with
Most benches stock at least two of the three. Here’s what pairs naturally with BAC Water.