How many vials do I need for a twelve-week course?

Multiply your doses per week by the number of weeks to get the total number of draws, then divide the vial size by your dose to get whole doses per vial, and divide one by the other — rounding up, because you cannot buy part of a vial. This tool does that for every vial size at once so the sizes can be compared.

Why does a bigger vial sometimes cost more peptide, not less?

Because vials round up. If your course needs 36 mg, four 10 mg vials cover it with 4 mg left over, while two 30 mg vials give you 60 mg and strand 24. The largest size is only the efficient one when your total divides into it cleanly.

Does leftover peptide keep until the next course?

Once reconstituted, no — fridge life is counted in days or weeks and is compound-specific, and the leftover figures here assume the vial is used within its window. Unopened lyophilised vials are a different question and keep far longer. Each compound profile records both.

Tools

Which vial size should I buy?

The calculator answers what to draw once you own a vial. This answers the question before that one: for the dose and schedule you have in mind, how many vials of each size it takes — and how much peptide you pay for and never use.

Your dose

How often

For how many weeks

Compound (optional)

Narrows the table to the sizes that compound comes in.

Doses in the course

24

Peptide actually used

60.0 mg

Vials needed for each vial size
Vial	Doses per vial	Vials to buy	Peptide bought	Left over	Mixed with · draw
2 mg	One dose is bigger than this vial.
5 mg	2	12	60 mg	none	1 mL · 50.0 units
10 mg	4	6	60 mg	none	1 mL · 25.0 units
15 mg	6	4	60 mg	none	1 mL · 16.7 units
20 mg	8	3	60 mg	none	1 mL · 12.5 units
30 mg	12	2	60 mg	none	2 mL · 16.7 units

The 5 mg vial wastes the least here — 12 vials and nothing left over. That is an arithmetic observation, not a recommendation: price per milligram varies by size, and a row whose draw is under ten units may be the harder one to measure accurately. Check the per-mg prices before deciding.

Bioalmanac does not recommend doses, schedules or compounds. Every figure above is arithmetic on values you entered.

Keep going

What next

Questions

How many vials do I need for a twelve-week course?: Multiply your doses per week by the number of weeks to get the total number of draws, then divide the vial size by your dose to get whole doses per vial, and divide one by the other — rounding up, because you cannot buy part of a vial. This tool does that for every vial size at once so the sizes can be compared.
Why does a bigger vial sometimes cost more peptide, not less?: Because vials round up. If your course needs 36 mg, four 10 mg vials cover it with 4 mg left over, while two 30 mg vials give you 60 mg and strand 24. The largest size is only the efficient one when your total divides into it cleanly.
Does leftover peptide keep until the next course?: Once reconstituted, no — fridge life is counted in days or weeks and is compound-specific, and the leftover figures here assume the vial is used within its window. Unopened lyophilised vials are a different question and keep far longer. Each compound profile records both.
Does this tell me what dose to take?: No. Every number in the table comes from the dose, frequency and duration you entered. Bioalmanac does not recommend doses, schedules or compounds, and the row that wastes the least peptide is an arithmetic result, not advice.