Vial Life Calculator
How many doses are in this vial, when will I run out, and will BAC water expiry get there first? All three answered in one screen.
⏳ Vial Life Calculator
Tells you how many doses are in a vial, when you'll run out, and whether your BAC-water shelf-life will get there first.
Most vendors recommend 28 days refrigerated.
You'll finish the vial before BAC water expiry
Frequently asked questions
How long does a reconstituted peptide vial last?+
Most vendors cite ~28 days refrigerated for bacteriostatic-water-reconstituted peptides. Some peptides (BPC-157) tolerate longer; others (Cerebrolysin, melanotan) less. Always follow the manufacturer's COA.
What if my vial runs out before the BAC water expires?+
Common scenario — congrats, you used the whole vial. The 'limiting' field above tells you whether dose-frequency or shelf-life is the bottleneck so you can plan resupply.
Do peptides degrade in the fridge?+
Yes, slowly. Most lyophilized (powdered) peptides are stable for years at –20°C. After reconstitution with bacteriostatic water, the typical refrigerated shelf life is 28 days for short peptides, sometimes longer for very stable ones. Always check your COA.
Should I refrigerate or freeze a reconstituted vial?+
Refrigerate — never freeze a reconstituted peptide. Freezing damages the structure. Lyophilized (unreconstituted) vials can be frozen long-term.
Educational use only
This calculator is provided for research and educational purposes. Outputs are derived from the values you enter. Always verify your math and consult a licensed physician before acting on any result.