RedoseAbout the vial duration calculator
Running out of a peptide mid-protocol means an unplanned gap while you wait on a reorder. This calculator tells you how long a vial lasts so you can restock in time.
It divides the vial amount by your dose to get the total number of doses, then divides by how many doses you take per week to give the duration in weeks and days.
Pair it with the reconstitution calculator to set your dose, and plan multi-vial cycles, for example an 8-week stack, by checking how many vials the duration implies.
FAQ
How long does a peptide vial last?
Divide the vial amount by your dose to get the number of doses, then divide by your weekly frequency. A 10 mg vial at 500 mcg per dose holds 20 doses, which lasts about 20 weeks at one dose per week.
How many doses are in a vial?
Doses per vial = vial amount ÷ dose, with both in the same units. The calculator converts mcg doses to mg for you, so a 10 mg vial at 250 mcg is 40 doses.
When should I reorder?
Order your next vial at least a week before the calculated end date to cover shipping, so you never pause a protocol waiting on stock.