# Price is only half the story

A low number can hide a weak paper trail. These dated observations separate pharmacy costs, consumer prices, and unapproved online listings.

## Price snapshot

Every figure here was observed on September 17, 2026. Prices change by place and by date. They are reported as market observations, not offers.

- **Approved product:** About $14 to $27 for one 30 mL vial as an observed cash or list-price range.
- **Unapproved listings:** About $8 to $13 for one vial on two sites that disclaimed human use.
- **Pharmacy acquisition:** The federal benchmark worked out to $5.13 for a 30 mL vial. That is not a consumer price.
- **Price movement:** The benchmark rose from $2.58 to $5.13 per vial between December 2025 and August 2026, an increase of 98.8%.

The observed unapproved listings cost only a few dollars less than the approved product. That small gap does not provide an approval, a full label, or a verified supply chain.

## Why the label says “Rx only”

Bacteriostatic water is a prescription drug in the United States. Federal law requires the approved product to be dispensed on a licensed practitioner's prescription.

The ordinary route is a state-licensed pharmacy. The bottle may also come with the medicine it is meant to dilute.

## Why it can be hard to find

FDA listed the shortage as current on September 17, 2026. The record was first posted on December 3, 2021 and last revised on September 9, 2026.

A national pharmacy shortage bulletin cited manufacturing delays at the sole supplier. It said normal ordering could not be filled while limited supply remained available.

The price rise happened during the same shortage. That timing is consistent with tight supply but does not prove that the shortage caused the change.

## The online gap

The unapproved market often uses “bac water” or “reconstitution solution.” FDA warning letters show that regulators look beyond a “research use only” notice to how the product is described and intended to be used.

An NDC number is a starting point, not a seal of approval. Trace it through the NDC Directory, Drugs@FDA, and DailyMed.

[Open the source trail](https://purebacteriostaticwater.com/source-trail/).