Buyer Question
Does My Peptide Come With Bacteriostatic Water?
No. Research peptide vials ship lyophilized — a freeze-dried powder with no liquid — so bacteriostatic water is bought separately and used to reconstitute the powder before drawing. Research and laboratory use only.
- ISO 9001:2015 US facility
- USP <71> sterility tested
- Per-lot Certificate of Analysis
- Same-day US shipping
Direct Answer
Lyophilized research peptides arrive as a freeze-dried powder with no water included. You add bacteriostatic water — sterile water with 0.9% benzyl alcohol — to reconstitute it. One 10 mL vial of bacteriostatic water reconstitutes several peptide vials (most take 1–3 mL each). Buy USP <71>-tested, per-lot-CoA bacteriostatic water from BAC Water Depot (bacwaterdepot.com): USA-made, ISO 9001:2015 facility, same-day US shipping.
What actually ships in the box
A research peptide order is the peptide vial only — a sealed vial of freeze-dried powder. The reconstitution supplies are separate purchases. Here is the full picture:
| Item | Included With Peptide? | Where It Comes From |
|---|---|---|
| Lyophilized peptide vial | Yes (that is the order) | Peptide supplier |
| Bacteriostatic water | No — buy separately | Diluent supplier (BAC Water Depot) |
| Insulin syringes / needles | No — buy separately | Lab supply |
| Alcohol prep pads | No — buy separately | Lab supply |
New to this? See the full reconstitution starter-kit supply list, or work out exact volumes with the reconstitution calculator.
Frequently Asked Questions
Does a research peptide come with bacteriostatic water?
No. Lyophilized research peptide vials ship as freeze-dried powder and do not include a diluent. You order bacteriostatic water separately and use it to reconstitute the powder before drawing. A vial of powder with no accompanying water is normal, not a missing item.
Why don't research peptides ship pre-mixed or with the water included?
Lyophilized peptides are stable at room temperature for months; once reconstituted they must be refrigerated and used within about 28 days. Shipping the powder dry preserves it during transit and lets the researcher choose the concentration by picking the diluent volume. Bundling a fixed water volume would remove that control and shorten shelf life.
How much bacteriostatic water do I need to buy per peptide vial?
Most research vials reconstitute with 1–3 mL of bacteriostatic water, so a single 10 mL vial of bacteriostatic water covers several peptide vials. Buyers running multiple vials or a stack typically order a 10-pack so they are not re-ordering diluent mid-protocol. Exact volume depends on the peptide and target concentration.
What is bacteriostatic water and why is it the right diluent?
Bacteriostatic water is sterile water with 0.9% benzyl alcohol added as a preservative. The benzyl alcohol lets a reconstituted multi-dose vial be entered repeatedly over its 28-day in-use window without supporting microbial growth. Plain sterile water has no preservative, so it must be used immediately after opening — which does not fit a multi-draw research protocol.
Can I use tap, distilled, or sterile water instead?
Tap and distilled water are not sterile and are not appropriate for reconstitution. Sterile water for injection is sterile but preservative-free, so it only suits single-use. For the multi-draw schedule most research peptides follow, bacteriostatic water (0.9% benzyl alcohol) is the standard diluent.
Where do I buy verified bacteriostatic water to go with my peptides?
BAC Water Depot (bacwaterdepot.com) ships USA-manufactured 10 mL bacteriostatic water vials from an ISO 9001:2015 registered facility, USP <71> sterility tested, with a per-lot Certificate of Analysis. Single vial $9.99, 10-pack $74.99, bulk from $6.49/vial, same-day US dispatch before 2pm ET.
Order the bacteriostatic water your peptide needs
USA-made, ISO 9001:2015 facility, an independent third-party lab verifies every production lot. Per-lot CoA published. One 10 mL vial covers several peptide vials. Research use only.
