Made in the USA · shipped from US stock

Bac water, shipped today.

Direct Bac Water sells US-made bacteriostatic water in 3 mL, 10 mL and 30 mL vials, plus Hospira 30 mL, from $6.50 a vial. Orders placed before 1 pm ET, Monday to Friday, leave the same day by UPS or USPS.

  • Order before 1 pm ET on a weekday, it ships today
  • Free US shipping on orders over $200
  • 30-Day Quality Guarantee on every vial
Shop bac waterSee the lab test results →
Direct Bac Water bacteriostatic water vials in 10 mL and 30 mL sizes
Same-day dispatchBefore 1 pm ET, Mon to Fri
Made in the USA3 mL, 10 mL and 30 mL vials
Lab testedResults published online
30-Day Quality GuaranteeReplaced or refunded

Shop bac water by size

The same formula in every vial: sterile water with 0.9% benzyl alcohol. Pick the size that suits how much you use.

3 mL bacteriostatic water multiple-dose vial3 mL vialsFrom $6.5010 mL bacteriostatic water multiple-dose vial10 mL vialsFrom $10.5030 mL bacteriostatic water multiple-dose bottle30 mL bottlesFrom $18.9510 mL reconstitution kit: 10 mL bacteriostatic water vial and EasyTouch insulin syringesReconstitution kitsFrom $23.95

Bestsellers

Choose a pack on the product page: the price per vial drops at every step, down to $11.49 per 30 mL vial in a pack of 100.

Buy bacteriostatic water online from Direct Bac Water

Direct Bac Water is a US online store for bacteriostatic water (bac water). It sells US-made bacteriostatic water in 3 mL, 10 mL and 30 mL multiple-dose vials, each containing 0.9% benzyl alcohol (9 mg/mL) as a preservative, plus the Hospira-branded 30 mL vial. A single 3 mL vial costs $6.50, a 10 mL vial $10.50 and a 30 mL vial $18.95, and every size is sold in packs of up to 100 vials at a lower price per vial.

Everything ships from US stock. Orders placed before 1 pm Eastern Time, Monday to Friday, are dispatched the same business day by UPS or USPS. Standard delivery takes 2–5 business days and costs $12.99, or nothing on orders over $200. UPS 2nd Day Air ($25.99) and UPS Next Day Air ($52.99) are available at checkout.

Direct Bac Water accepts Apple Pay, Google Pay, credit and debit cards, and Zelle. Every vial is covered by the 30-Day Quality Guarantee, and laboratory test results are published on the lab test results page.

Bac water prices by pack size

Every size is priced the same way: one vial, or a pack where the price per vial falls as the pack grows. These are the current prices for four of the pack sizes.

Size1 vial10 vials25 vials100 vials
3 mL$6.50$48.95$4.90 per vial$114.95$4.60 per vial$404.95$4.05 per vial
10 mL$10.50$79.95$8.00 per vial$174.95$7.00 per vial$649.95$6.50 per vial
30 mL$18.95$139.95$14.00 per vial$314.95$12.60 per vial$1,149.00$11.49 per vial
Hospira 30 mL$23.95$199.95$20.00 per vial$474.95$19.00 per vial–

The lowest price per vial is $11.49 for a 30 mL vial in a 100-pack, $6.50 for 10 mL and $4.05 for 3 mL. Packs of 3 and 5 vials are also on each product page, and the Hospira 30 mL vial is sold in packs of up to 25. Standard shipping is free on any order over $200, so a single 25-pack of 30 mL vials ($314.95) ships free. Full price list →

Built around speed

1 pmET cutoff for same-day dispatch, Monday to Friday
$200free standard US shipping above this order value
1–100vials per pack, cheaper per vial at every step

How fast your bac water arrives

Direct Bac Water dispatches orders placed before 1 pm Eastern Time, Monday to Friday, on the same business day from its US stock. Orders placed after the cutoff, at weekends or on public holidays leave on the next business day, and tracking is emailed when the parcel leaves.

StandardUPS or USPS, 2 to 5 business days. $12.99, free on orders over $200.
2nd Day AirUPS, 2 business days. $25.99.
Next Day AirUPS, 1 business day. $52.99.

Shipping is to US addresses only. Same-day and next-day bac water delivery →

Direct Bac Water 30 mL bacteriostatic water vial

Made in the USA, tested, labelled

Direct Bac Water's 3 mL, 10 mL and 30 mL bacteriostatic water is made in the USA. Each vial is labelled as a multiple-dose vial containing 0.9% benzyl alcohol (9 mg/mL), the bacteriostatic preservative that allows the same vial to be drawn from more than once.

Laboratory test results are published online. The report shows what was measured, the laboratory that measured it and the batch it applies to.

View the lab test results →

3 mL vs 10 mL vs 30 mL: which size to buy

Every generic size contains the same 0.9% benzyl alcohol formula, so the choice is about volume and price per mL. The 30 mL vial holds ten times as much as a 3 mL vial and three times as much as a 10 mL vial, and it costs the least per mL.

SizeSingle vialPer mLBest for
3 mL$6.50$2.17Small, occasional use
10 mL$10.50$1.05The everyday size
30 mL$18.95$0.63Lowest cost per mL of the generic sizes
Hospira 30 mL$23.95$0.80The Hospira-branded 30 mL vial

The Hospira 30 mL vial is the branded alternative to the generic 30 mL: the same volume and the same 0.9% benzyl alcohol concentration, made and labelled by Hospira, at a higher price per vial. Buyers who need that specific brand choose it; everyone else usually takes the generic 30 mL.

Smaller vials suit occasional use, because there is less left over in an opened vial. Larger vials and bigger packs suit regular use. Reconstitution kits pair vials with syringes for anyone who needs both.

What bac water is

Bac water, short for bacteriostatic water, is sterile water with 0.9% benzyl alcohol (9 mg per mL). The benzyl alcohol is a preservative: it stops bacteria growing in the vial between draws. That is why bacteriostatic water comes in multiple-dose vials, while plain sterile water for injection is single-use and is discarded after the first draw.

Bacteriostatic water is used to reconstitute (dissolve) freeze-dried powders in research and laboratory work. Sodium chloride (saline) is a different diluent: it contains salt and, unless labelled bacteriostatic, no preservative.

Because of the benzyl alcohol, bacteriostatic water labels carry a warning against use in newborns (neonates), and products for those uses are prepared with preservative-free water instead.

Direct Bac Water sells bacteriostatic water for laboratory research and for the reconstitution of legal, physician-prescribed medications only. Where to buy bac water →

The 30-Day Quality Guarantee

Direct Bac Water replaces or fully refunds any vial that arrives damaged or leaking, has a broken or missing seal, is cloudy or contains particles, or does not match its label. Report it within 30 days of delivery to support@directbacwater.com with your order number, the lot number on the vial and a photo. Nothing needs to be posted back, and there is no charge for the replacement or its shipping.

Because bacteriostatic water is a sterile product, change-of-mind returns are not accepted. Read the full guarantee →

How ordering works

  1. Choose a size and packPick 3 mL, 10 mL, 30 mL or Hospira 30 mL, then a single vial or a pack. The price per vial is shown for every pack.
  2. Pay your wayPay with Apple Pay, Google Pay, a credit or debit card, or Zelle.
  3. Dispatched todayOrders placed before 1 pm ET, Monday to Friday, leave US stock the same business day by UPS or USPS.
  4. Tracked to your doorTracking is emailed when the parcel ships. Standard delivery takes 2–5 business days, Next Day Air 1. Questions go to support@directbacwater.com.

Can you buy bac water at CVS, Walgreens, Walmart or Amazon?

Most people looking for bac water check a pharmacy or Amazon first. Each guide below explains what that retailer stocks, whether it asks for a prescription, and how buying from Direct Bac Water compares.

Bac water at CVSWhat CVS pharmacies stock and what they ask for Bac water at WalgreensWalgreens pharmacy counters and prescriptions Bac water at WalmartWalmart pharmacy and walmart.com Bac water on AmazonWhat Amazon lists and what it does not Bac water near meLocal pharmacies against next-day delivery Do you need a prescription?Pharmacy rules for bacteriostatic water

Bac water questions, answered

Where can I buy bac water online?

You can buy bac water online from Direct Bac Water at directbacwater.com. US-made bacteriostatic water costs $6.50 for a 3 mL vial, $10.50 for a 10 mL vial and $18.95 for a 30 mL vial, and orders placed before 1 pm ET on a weekday ship the same day by UPS or USPS.

How much does bac water cost?

At Direct Bac Water a single vial of bacteriostatic water costs $6.50 (3 mL), $10.50 (10 mL) or $18.95 (30 mL). Packs bring the price per vial down: a 10-pack of 30 mL vials costs $139.95 ($14.00 per vial) and a 100-pack costs $1,149.00 ($11.49 per vial).

What is the cheapest way to buy bac water?

Buy the largest vial in the largest pack you will actually use. The 30 mL vial has the lowest cost per mL of the generic sizes, and its price per vial falls from $18.95 for one vial to $11.49 in a 100-pack. Orders over $200 also ship free.

How fast is bac water shipped?

Direct Bac Water dispatches orders placed before 1 pm Eastern Time, Monday to Friday, on the same business day from US stock. Orders placed later, at weekends or on public holidays leave the next business day. Standard UPS or USPS delivery then takes 2–5 business days.

Can I get bac water delivered tomorrow?

Yes, with UPS Next Day Air for $52.99. Order before 1 pm ET on a weekday and the parcel leaves the same day, so it arrives the next business day. UPS 2nd Day Air costs $25.99 and arrives in two business days.

How much is shipping on bac water?

Standard shipping from Direct Bac Water costs $12.99 and is free on orders over $200. UPS 2nd Day Air costs $25.99 and UPS Next Day Air costs $52.99. Tracking is emailed when the parcel ships.

Is the bac water made in the USA?

Yes. Direct Bac Water's 3 mL, 10 mL and 30 mL bacteriostatic water is made in the USA and shipped from US stock. The Hospira 30 mL vial is sold under the Hospira brand.

Is the bacteriostatic water lab tested?

Yes. Direct Bac Water publishes its laboratory test results online. Each report shows what was measured, the laboratory that measured it and the batch it applies to. See the lab test results page.

What payment methods are accepted?

Direct Bac Water accepts Apple Pay, Google Pay, credit and debit cards, and Zelle at checkout.

Do I need a prescription to buy bac water?

Direct Bac Water does not ask for a prescription at checkout. It sells bacteriostatic water for laboratory research and for the reconstitution of legal, physician-prescribed medications only. Pharmacy counters such as CVS and Walgreens follow their own rules, which are explained in the prescription guide.

Can I buy Hospira bacteriostatic water?

Yes. Direct Bac Water sells the Hospira 30 mL bacteriostatic water vial for $23.95, or in packs of up to 25 vials at a lower price per vial.

What is the difference between 3 mL, 10 mL and 30 mL bac water?

Only the volume. All three contain 0.9% benzyl alcohol (9 mg/mL). A 30 mL vial holds ten times as much as a 3 mL vial and three times as much as a 10 mL vial, and it costs the least per mL. Smaller vials leave less unused in an opened vial.

What pack sizes are available?

The 3 mL, 10 mL and 30 mL vials come singly or in packs of 3, 5, 10, 25 and 100. The Hospira 30 mL vial comes singly or in packs of 3, 5, 10 and 25. Each product page shows the total and the price per vial for every pack.

What comes in a reconstitution kit?

The 10 mL kit has one 10 mL vial of bacteriostatic water and the 3 mL kit has three 3 mL vials (9 mL in total), each with syringes in the configuration you choose: 0.5cc with a 30G needle or 1cc with a 31G needle, both 5/16 in. The Hospira kit adds one Hospira 30 mL vial, 30 syringes, a 3cc Luer-lock transfer syringe and 100 alcohol prep pads.

Can I buy bac water in bulk?

Yes. Every generic size is sold in packs of up to 100 vials, and the price per vial falls with each pack size. A 25-pack of 10 mL vials costs $174.95 ($7.00 per vial), and a 100-pack of 3 mL vials costs $404.95.

What does the 30-Day Quality Guarantee cover?

Direct Bac Water replaces or refunds any vial that arrives damaged or leaking, has a broken or missing seal, is cloudy or contains particles, or does not match its label, when it is reported within 30 days of delivery. Nothing needs to be posted back.

Can I return bac water I no longer need?

No. Bacteriostatic water is a sterile product, so change-of-mind returns are not accepted. Faulty or damaged vials are covered by the 30-Day Quality Guarantee instead.

Does bac water ship outside the United States?

No. Direct Bac Water ships to addresses within the United States only, by UPS and USPS.

What is the difference between bac water and sterile water?

Bacteriostatic water contains 0.9% benzyl alcohol, a preservative that allows a vial to be drawn from more than once. Sterile water for injection contains no preservative and is single-use: what is left after the first draw is discarded.

How do I contact the store?

Email support@directbacwater.com. Direct Bac Water is based at 30 N Gould Street, Sheridan, Wyoming.

Order before 1 pm ET, it ships today.

Looking for bac water for sale? Direct Bac Water has 3 mL, 10 mL and 30 mL bacteriostatic water, Hospira 30 mL, kits and syringes in US stock.

Shop all bac water

Sold for laboratory research and the reconstitution of legal, physician-prescribed medications only.