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VialUnits

Peptide blend calculator

For vials that hold two or more peptides. Enter the split printed on the label; the calculator shows what each syringe reading holds of every component.

Components in the vial

Use the split printed on the label.

  • mg
  • mg
  • mg
Total 10 mg
mL

Your number. This site never suggests one.

Concentration

2.5mg/mL

Enter an amount to see the syringe reading.

0102030405060708090100
U-100, 1 mL (100 units): empty. Enter values to see the reading.

What each reading holds

Units (U-100)mLPeptide A
100.1250 mcg
250.25625 mcg
500.51.25 mg
10012.5 mg
Work backwards: how much water?

Pick how many units you want your amount to read, and this gives the water volume that produces that concentration for Peptide A.

units

Enter the vial amount and the amount to measure first.

Math only. Check every number against your vial label.

By [Author name]. Licensed pharmacist review: pending. Last updated .

Common blends, set up

Reading the result

Pick the component you want the syringe reading based on. The calculator works out the volume for that component, then lists what the same volume holds of every other component. Leave a component at 0 mg (or remove it) for a two-peptide vial.

Label splits are the seller's claim. A certificate of analysis that reports one combined purity figure does not confirm how much of each peptide is in the vial.

Blend calculator questions

How do you calculate a blend vial?

Treat each component separately. Water dilutes every component by the same volume, so each component's concentration is its own mg ÷ water mL. Any volume you measure holds each component in proportion to its share of the label.

Why can't I measure just one component from a blend?

Because every drop of the solution contains all of them in the label ratio. Choosing which component to measure by only changes which number the syringe reading is based on.

Is the total vial mg useful?

Only as a check. A '10 mg' blend labeled 5 mg + 5 mg holds 5 mg of each; dividing 10 mg by the water gives the total concentration, not either component's.