Guide
Blend Vial Math: Each Peptide in One Volume
In a blend vial all components dissolve in the same liquid, so any volume contains every component in the vial’s own proportions. Work out each component’s concentration (its amount ÷ the liquid), then multiply by the volume.
One liquid, fixed proportions
each component per mL = component amount ÷ liquid addedeach component in a volume = volume × component amount ÷ liquid addedThe ratio between components never changes after mixing. A 2:1 vial gives a 2:1 volume, whatever size it is.
Example: an equal two-component blend
5 mg + 5 mg in 2 mL: each component is 2.5 mg/mL. 10 units (0.1 mL) holds 250 mcg of each, 500 mcg combined.
Example: an uneven blend
| Volume | A | B | Combined |
|---|---|---|---|
| 10 units (0.1 mL) | 333.3 mcg | 166.7 mcg | 500 mcg |
| 20 units (0.2 mL) | 666.7 mcg | 333.3 mcg | 1,000 mcg |
| 30 units (0.3 mL) | 1,000 mcg | 500 mcg | 1,500 mcg |
Working from one component
To find the volume for a target of one component, use that component alone: volume = target × liquid ÷ that component’s amount. The others come along in proportion. The blend calculator shows them all at once.
Mixed units
mg and mcg components add up exactly. A component in IU only joins totals with its IU factor; without one, it is shown on its own.
Frequently asked questions
Can I get more of one component without the other from a blend?
No. Every volume carries the vial’s fixed ratio.
How do I calculate a three-component blend?
The same way: each component’s amount ÷ the liquid gives its concentration. The calculator handles up to eight components.
Related calculators and guides
- CalculatorBlend calculatorFor vials with two or more peptides: concentration of each component, how much of each is in any volume, and each one’s share.
- CalculatorReconstitution calculatorWork out concentration after adding bacteriostatic water, then the mL and U-100 units for any amount.
- GuideHow Much Bacteriostatic Water to AddThe volume of bacteriostatic water you add sets the concentration, not the amount.
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