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To convert Melanotan II — also written Melanotan 2 or MT-2 — to syringe units, divide your intended amount in milligrams by the vial’s concentration in mg/mL, then multiply by 100. For example, a 10 mg vial reconstituted with 2 mL of bacteriostatic water gives 5 mg/mL. This is reconstitution math, not a dose recommendation and not medical advice; verify every number with a licensed clinician.
Melanotan II reconstitution & dosage calculator X
Reconstitution / draw volume / syringe units / supply-chain
Arithmetic checks out. Confirm clinically, against the label, and against the actual vial before any use.
Independent check - dose mg / concentration mg/mL = volume. U-100 units = mL x 100.
Pilot began at 0.01 mg/kg and escalated; 0.025 mg/kg proposed for future Phase 1 studies
Study context only; no default clinical dose.
Only 3 participants in the pilot; nausea, somnolence and prolonged erections occurred. FDA cites serious case reports.
DOI 10.1016/0024-3205(96)00160-9Supply-chain signal only - not a potency guarantee. Enter the COA's tested mg and purity above so the math reflects the real vial.
View on finnrick.comReverse: pick a dose and the units you want it to read, then calculate diluent to add.
Same-syringe co-draw. Reconstitute each peptide in its own vial, then draw them into one syringe.
- Reconstitute each peptide in its own vial — never add water to multiple peptides in one vial.
- Only co-draw peptides with the same diluent (e.g. both bacteriostatic water) and compatible pH.
- Draw and inject fresh — do not pre-mix and store; mixture stability is not established.
- No blended stack is clinically validated. Verify each component and confirm with a clinician.
Melanotan II concentration and syringe-unit conversion chart
| Vial + water | Concentration | Units per 1 mg | Units per 100 mcg |
|---|---|---|---|
| 10 mg + 1 mL | 10 mg/mL | 10 | 1 |
| 10 mg + 2 mL | 5 mg/mL | 20 | 2 |
| 10 mg + 3 mL | 3.33 mg/mL | 30 | 3 |
Concentration = vial strength divided by the bacteriostatic water added. On a U-100 syringe 100 units = 1 mL, so units = (dose divided by concentration) x 100. Values are syringe units, not milligrams. Amber values exceed 100 units, which is more than one standard 1 mL U-100 syringe holds, so that combination needs a more concentrated solution. The published figures for Melanotan II are weight-based (0.01-0.025 mg/kg), so they cannot be shown as a fixed milligram column without assuming a body weight, which this site will not do. This chart shows conversion factors only. Multiply the units-per-1-mg figure by your own dose in milligrams to convert any amount. For vial sizes or doses not shown here, use the general mg to units converter.
Sources
- DOI 10.1016/0024-3205(96)00160-9Small Phase 1 human study. Basis for the regulatory status, route, frequency and published range shown on this page, and for the conversion factors in the chart above. Source last checked 2026-06-24
Frequently asked questions
What is Melanotan II’s regulatory status in the United States?
There is no FDA-approved Melanotan II product for any use, and the FDA has publicly flagged significant safety concerns about compounded and unregulated melanotan products. This calculator reflects no approved indication — it only performs unit-conversion arithmetic on a number you enter yourself.
Melanotan II was only tested in a very small early trial — does that produce a usable dose?
The commonly cited 0.01-0.025 mg/kg figures trace back to a Phase 1 pilot in just three participants that began at 0.01 mg/kg and escalated. That is exploratory trial history, not a validated or approved dosing schedule, and this tool neither applies those numbers nor fills them in for you.
Will this tool tell me how much Melanotan II to inject?
No. There is no established or approved self-use dose for Melanotan II, so the calculator never suggests one. It only converts a milligram amount you type into U-100 insulin-syringe units — that is arithmetic, not medical advice. Speak with a licensed clinician before considering any peptide.
The tool defaults to a 10 mg vial — what if my product is labeled differently?
Research Melanotan II is most often supplied as a single 10 mg vial, which is the default shown here. Always enter the exact peptide mass printed on your own vial: the units you would draw depend on your total peptide and your reconstitution volume, not on the 10 mg assumption itself.
Why does this page carry heavier safety warnings than the other peptide calculators?
Melanotan II has published case reports linking it to melanoma and changing moles, priapism (prolonged, painful erections), and rhabdomyolysis, on top of the nausea and somnolence seen in early testing. Those documented harms are why the page foregrounds safety and deliberately offers no dose.