← Full peptide calculator
Free tool
Reconstitute two or more peptides together in one vial and this calculator shows how many milligrams of each you deliver per draw. Start from a named blend — Wolverine, CJC-1295 + Ipamorelin, GLOW, or KLOW — or build your own with 2 to 4 peptides. For the named blends’ write-ups, see the blends library. Reference math, not medical advice.
| Peptide | Concentration | Per draw |
|---|---|---|
| BPC-157 | 1.667 mg/mL | 0.333 mg |
| TB-500 | 1.667 mg/mL | 0.333 mg |
Assumes all peptides are reconstituted together in one vial with the shared water, then drawn in a single U-100 syringe. Each peptide's concentration = its mg ÷ shared water; per draw = concentration × draw volume (units ÷ 100). Whether peptides can be safely combined in one vial depends on the specific peptides — check compatibility. Arithmetic only, not medical advice; verify against the product label and a clinician.
Frequently asked questions
How does a co-draw blend calculator work?
When several peptides share one vial and the same bacteriostatic water, each has its own concentration equal to its milligrams divided by the shared water volume. Drawing a set number of U-100 units pulls the same volume from all of them, so the tool multiplies each concentration by that volume to show the milligrams of each peptide delivered per draw.
What are the Wolverine, GLOW, and KLOW blends?
They are common named peptide stacks: Wolverine is BPC-157 with TB-500, GLOW adds GHK-Cu to that pair, and KLOW adds KPV on top of GLOW. CJC-1295 with Ipamorelin is a growth-hormone-secretagogue pair. The presets fill in typical vial amounts, which you can edit; see the blends library for the write-ups.
Can I put more than two peptides in one vial?
The calculator supports 2 to 4 peptides in a single vial. Whether specific peptides can actually be combined and stay stable together is a separate question that depends on the peptides involved — check compatibility and storage for each before mixing.
How many draws does a co-mixed vial give?
Draws per vial equals the shared water volume divided by the draw volume, where the draw volume is your units divided by 100 on a U-100 syringe. Every peptide runs out at the same time because they share the vial, so one number covers the whole blend.
Is this medical advice?
No. It is arithmetic and reference only. It does not recommend a blend, a dose, or that any peptides should be combined, and does not assess whether a combination is safe or stable. Verify against the product labels and with a clinician or pharmacist.