10mL or 30mL Bac Water: Which Should You Buy?
The 10ml costs significantly less up front. How many peptides you run decides which one you want.
Buy the 30mL if you will get through it within the expiration date of opening it, and the 10mL if you will not. The larger vial is better value per millilitre, but only until the day you throw half of it away.
How many reconstitutions does each vial cover?
Most vials take between 1mL and 3mL. That puts a 10mL bottle at roughly three to ten uses and a 30mL at ten to thirty.
Why does your usage decide this and not the price?
Because the 10mL costs significantly less up front. If you are running one or two peptides, a 10mL bottle covers you and leaves money in your pocket. If you are reconstituting several vials a week, the 30mL is the obvious buy.
Which should you buy?
| If you | Buy | Because |
|---|---|---|
| Reconstitute weekly or more | 30 mL | You will finish it comfortably before the expiration date |
| Reconstitute once or twice a month | 10 mL | A 30mL would expire part used |
| Are buying for the first time | 10 mL | Find your real pace before committing |
| Are buying for several people | 30 mL | Shared use empties it fast |
Does buying a multi-pack change the answer?
It changes the price, not the timing. A pack of sealed vials lasts until each one's printed expiry when kept refrigerated. Buying a five pack and opening them one at a time is a straightforward way to get pack pricing.
Both sizes and every pack are on the 30mL page and the 10mL page.
Frequently Asked Questions
- Can you decant a 30mL vial into smaller sterile vials?
- Decanting works against you. Each transfer is another puncture and another handling step, and it gains you nothing that buying the smaller vial would not have given you already.
- Is there a 50mL or 100mL bac water vial?
- The standard presentations are 10mL and 30mL multiple-dose vials. Larger volumes exist in clinical supply but they compound the same problem, since one vial still has to be finished within the expiration date.
- Do unopened vials in a pack expire at different times?
- Vials from the same lot share one expiry date printed on each label. A pack bought at different times may contain different lots, so check each vial rather than assuming the pack is uniform.