Multi-peptide vials

Peptide Blend Calculator

Some vials contain two or more peptides. Enter each one and the water added to see exactly how much of each is in every draw.

Last updated Math checked by 520,000+ automated tests

Peptide blend calculator

Example values are loaded. Replace them with the numbers on your own vial.

Peptides in the vial
mg
mg
mL
What do you know?
units
Syringe size
U-100 syringe: 100 units = 1 mLHow this is tested

How blends work

Each peptide in a blended vial dissolves into the same water, so each has its own concentration. A single draw always contains all of them, in the same ratio as in the vial. You can't take more of one without taking more of the others.

Concentration of each = its mg in vial ÷ water (mL)
Amount per draw = concentration × draw (mL)

Example: a vial with 5 mg of peptide A and 5 mg of peptide B, mixed with 2 mL, is 2.5 mg/mL of each. A 10-unit draw (0.1 mL) contains 0.25 mg (250 mcg) of each.

Two ways to use it

  • I know my draw: enter the units you draw and see what each peptide contributes.
  • Dose one peptide: pick the peptide you are dosing by, enter its target, and the calculator finds the draw and shows what comes along with it from the others.

Frequently asked questions

Can I change the ratio in a blended vial?

No. Once peptides are mixed in one vial, every draw has the same ratio. A different ratio needs separate vials.

Does the total mg of the blend matter?

Each peptide is calculated separately from its own mg. The total is shown only for reference.

Related calculators and guides