This peptide blend calculator shows how much of each peptide you get per injection when two or three peptides share one vial.
How to use the Peptide Blend Calculator
- Type the peptide a.
- Enter the amount.
- Type the peptide b.
- Type the peptide c (optional).
- Enter the amount (optional).
- Enter the bac water added, or tap a preset.
- Enter the units drawn, or tap a preset.
- Read the result card. It updates as you type, and you can copy or share it.
About this calculator
In a blend, every draw contains each peptide in the same ratio as the vial. You can’t change one peptide’s dose without changing the others.
Frequently asked questions
Can any peptides be mixed in one vial?
Compatibility data is limited for most combinations. Some peptides degrade faster when combined or at a different pH.
Sources
- ISO 8537: Sterile single-use syringes for insulin. International Organization for Standardization.
Related calculators
- Peptide Reconstitution Calculator: This peptide reconstitution calculator shows how many units to draw after mixing a peptide vial with bacteriostatic (BAC) water. Enter the amount on the vial label, the water you added, and your dose.
- Peptide Concentration Calculator: This peptide concentration calculator shows how strong your solution is after reconstitution, in mg/mL, mcg/mL, and mcg per insulin syringe unit.
- Insulin Syringe Units Calculator: This insulin syringe units calculator converts any dose and concentration into the units and milliliters to draw, with a syringe diagram showing the fill line.
- Doses per Vial Calculator: This doses per vial calculator divides the amount in your vial by your dose to show how many full doses you get and what is left over.
Medical disclaimer. This calculator is for educational purposes only and is not medical advice. Results are mathematical estimates based on the values you enter. Many peptides listed here are not approved by the FDA for human use. Confirm every dose with a licensed healthcare provider or your approved study protocol, and follow the product label.


