Research Tools

Peptide Calculator

Calculate reconstitution volumes and injection doses for your research peptides. All measurements in ml and mg as standard.

Research Use Only. This calculator is for informational purposes only and does not constitute medical or dosing advice. All compounds are intended for laboratory research only — not approved for human or animal use, and not evaluated by the TGA. By continuing you agree to our Terms & Conditions.

Important note on syringe units (U): The unit markings on syringes can vary significantly between brands and types. For example, the Nipro Precision 0.3ml syringes we supply are marked differently to standard U-100 insulin syringes. We strongly recommend always measuring in ml (millilitres) rather than relying on unit markings — ml is a universal measurement that is consistent across all syringes. The calculators below work exclusively in ml for this reason.

Calculators

Reconstitution

How much BAC water to add to reach your desired concentration.

Add this much BAC water
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Dosage

How many ml to draw for your desired dose from a reconstituted vial.

Draw this volume
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0.3 ml Syringe
0 0.1 0.2 0.3 draw to here

Reconstitution Guide

GLP-1’s — Retatrutide & Tirzepatide

  • Retatrutide 10mg + 1 ml BAC water → 10mg/ml → 0.1ml = 1mg
  • Retatrutide 20mg + 2 ml BAC water → 10mg/ml → 0.1ml = 1mg
  • Tirzepatide 10mg + 1 ml BAC water → 10mg/ml → 0.1ml = 1mg

Keeping the same ratio (10mg/ml) means 0.1ml always equals 1mg regardless of vial size — consistent and easy to remember.

GHK-Cu — Reconstitution Options

  • 100mg vial + 3 ml BAC water → ~33mg/ml → 0.06ml = 2mg
  • 50mg vial + 5 ml BAC water → 10mg/ml → 0.2ml = 2mg
  • 100mg vial + 10 ml BAC water → 10mg/ml → 0.2ml = 2mg

GHK-Cu is known to sting at higher concentrations. A lower volume injection (3ml/100mg) is common, but some researchers prefer diluting further (10ml/100mg) to reduce discomfort — same dose, larger injection volume.

Tanning Peptides

  • Melanotan I 10mg + 2 ml BAC water → 5mg/ml → 0.1ml = 0.5mg
  • Melanotan II 10mg + 2 ml BAC water → 5mg/ml → 0.1ml = 0.5mg
  • PT-141 10mg + 2 ml BAC water → 5mg/ml → 0.1ml = 0.5mg

General Peptides

  • BPC-157 5mg + 2 ml BAC water → 2.5mg/ml → 0.1ml = 0.25mg
  • HGH 36iu + 1 ml BAC water → 36iu/ml → 0.1ml = 3.6iu
  • NAD+ 1000mg + 2 ml BAC water → 500mg/ml → 0.1ml = 50mg
  • Most peptides — 1–2 ml BAC water depending on concentration needed

Acetic acid water should be used for peptides that do not dissolve readily in BAC water such as HGH and some GLP-1s.