Vial duration calculator
Calculate how many days a reconstituted vial will last based on your dosing schedule. Plan around the standard 28-day expiration window.
Vial duration
mg
mcg
1/wk7 doses / week14/wk
Total usable doses
- doses
Vial lifespan
- days
Shelf life
Important
Reconstituted peptides begin degrading immediately. Efficacy substantially decreases after 28 days even at 2–8°C. Do not exceed 4 weeks per vial.
Reference formulas
Duration
Days = Total doses × (7 / Frequency)
Total doses
Doses = (Vial mg × 1000) / Dose mcg