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Functional calculator

Peptide blend calculator.

Mix two or more peptides in a single vial. Per-compound dose-per-tick math for a U-100 insulin syringe — built for the CJC + Ipamorelin, BPC + TB-500, and GHK-Cu stacks most people actually run. Saves a vial, saves an injection.

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Reconstituting a single peptide first? → Reconstitution calculator

Quick presets

Your vial

U-100 syringe: 1 mL = 100 ticks · 3 mL = 300 ticks total

Per-tick math

Vial total
BAC water: 3.0 mL
Ticks total: 300
Compounds: 2
The math:
Concentration (mcg/mL) = peptide mg × 1000 ÷ BAC water mL
Dose per tick (mcg) = concentration ÷ 100  (U-100 syringe: 1 tick = 0.01 mL)
Ticks for target dose = target mcg ÷ dose per tick
Each compound calculated independently — they share BAC water volume but maintain their own potency.
Methodology

What this is and isn't.

Same vial, separate math.

When two peptides share a vial, the BAC water dilutes both. Each compound's per-tick dose is independent — drawing 10 ticks of a CJC + Ipa blend pulls 10 ticks' worth of CJC AND 10 ticks' worth of Ipamorelin in proportion to their mg loaded. The calculator shows both numbers per draw.

Not every peptide blends.

Most GH-axis peptides (CJC, Ipa, GHRP, Hexarelin, Sermorelin) and healing peptides (BPC, TB-500, GHK) play nicely in bacteriostatic water. Avoid mixing pH-sensitive or pre-buffered compounds (some GLP-1 formulations), or anything the manufacturer specifically warns against. When in doubt: separate vials. Use the single-compound reconstitution tool for those.

One injection, two compounds.

The practical reason people blend: one injection per dose instead of two, less BAC water purchased, fewer vials open at once. Trade-off: if the vial gets contaminated or lost, you lose both peptides. For stable protocols this is fine. For first-time use of a new compound, run it solo first.

Educational reference

Provides math for combining research-grade peptides in a single vial. Not a recommendation to use, blend, or self-administer peptides. Many compounds listed here are not approved for human use in most jurisdictions and carry real medical risk. See the safety framework in The Manual.

Read the explainer

The stacks behind the syringe math.

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Frequently asked

Common questions

Can I mix CJC-1295 and Ipamorelin in the same vial?

Yes — CJC-1295 (no DAC) and Ipamorelin are commonly blended in a single vial because they're both lyophilized peptides with similar stability profiles in bacteriostatic water and they're typically dosed together (often at 100 mcg CJC + 100–300 mcg Ipamorelin per shot). Reconstitute the lower-mg compound first, then add the higher-mg powder if doing it in one vial, or pre-mix both into a third sterile vial. This calculator handles the per-tick math for any ratio you choose.

Can BPC-157 and TB-500 be combined in one vial?

Both peptides are stable in bacteriostatic water at typical reconstitution ratios and have compatible storage requirements (refrigeration after mixing). Many users blend them when running both for healing protocols. Common ratio: 250 µg BPC-157 + 2 mg TB-500 daily during a loading phase. Reconstitute each in separate vials first if you're not confident in the math; once you've run the calculator, single-vial blending saves an injection.

What does "dose per tick" mean on an insulin syringe?

A U-100 insulin syringe has 100 ticks total across 1 mL (so each tick = 0.01 mL = 1 unit on the syringe). "Dose per tick" tells you how much of each peptide you're drawing per unit. If your blend gives you 10 µg Ipamorelin per tick and you want 100 µg, you draw to the 10-tick mark. The calculator shows this number for every compound in your blend simultaneously.

Why does mixing peptides save bacteriostatic water and injections?

Each separate vial needs its own BAC water (typically 2–5 mL) and its own injection. Blending CJC + Ipa, or BPC + TB-500, into one vial means one injection per dose instead of two, and one BAC water purchase instead of two. The trade-off: if anything goes wrong with the vial (contamination, lost dose, degradation), you lose both compounds at once.

Are all peptides compatible in the same vial?

No. Most growth-hormone-axis peptides (CJC, Ipamorelin, GHRP-2/6, Hexarelin, Sermorelin) and healing peptides (BPC-157, TB-500, GHK-Cu) blend fine in bacteriostatic water. Avoid mixing: anything in a pre-buffered or pH-sensitive solution (some GLP-1s), copper peptides (GHK-Cu) with sulfur-containing peptides at high concentration (can interact), and anything where the manufacturer specifically warns against combining. When in doubt, separate vials.