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Melanotan II dosage calculator.
Reconstituting Melanotan II? Enter the mg in the vial, the bacteriostatic water you add, and your target dose in micrograms. You get the exact concentration, the volume to draw in mL, and the units on a U-100 syringe. No rounding, no account, and the full math is shown every time.
Units shown for a U-100 insulin syringe (1 mL = 100 units). No rounding · the full math is above.
How the math works
Three steps, no hand-waving.
Reconstitution is simple arithmetic. The only thing that matters is that it is exact, and that you can see every step.
Vial mg ÷ BAC water mL = mg/mL. A 10 mg vial in 2 mL of water is 5.0000 mg/mL.
Target dose ÷ concentration = mL to draw. 500 mcg ÷ 5.0000 mg/mL = 0.1000 mL.
Draw mL × 100 = units on a U-100 insulin syringe. 0.1000 mL = 10 units.
Background
What Melanotan II reconstitution is
Melanotan II (MT-II) is a synthetic cyclic analog of alpha-melanocyte-stimulating hormone (alpha-MSH) that activates a broad range of melanocortin receptors. It is not FDA-approved for any use; the related approved compound is afamelanotide (brand Scenesse), a melanocortin-1 receptor agonist approved in 2019 for a rare light-sensitivity disorder. MT-II is supplied as a lyophilized powder reconstituted with bacteriostatic water; concentration is the mg in the vial divided by the mL of water you add. Because doses are usually in micrograms, the calculator shows every decimal.
- Reconstitution built into the dose logger, not a separate tool
- 28-day BAC water expiry countdown per vial
- Doses remaining and refill warnings, all derived
- Local-first · no account, data stays on your device
FAQ
Melanotan II reconstitution questions, answered.
How do you calculate a Melanotan 2 dose?
Divide the mg of Melanotan II in the vial by the mL of bacteriostatic water you add for the concentration in mg/mL. Convert your dose to mg (1000 mcg = 1 mg), divide by the concentration for the draw volume in mL, then multiply by 100 for units on a U-100 insulin syringe.
How much BAC water for a 10mg Melanotan 2 vial?
There is no single correct amount. 2 mL gives 5 mg/mL; more water lowers the concentration and gives a larger draw. Enter the amount you plan to add and the calculator returns your exact numbers.
How many units is 500 mcg of Melanotan 2?
It depends on the concentration. At 5 mg/mL (a 10 mg vial in 2 mL), 500 mcg is 0.1000 mL, or 10 units on a U-100 syringe. Change any input above to see your own numbers.
Is Melanotan 2 FDA approved?
No. Melanotan II is not approved by the FDA for any use. The related approved drug is afamelanotide (Scenesse), a different, MC1R-selective analog. This tool is arithmetic only and is not a recommendation to use Melanotan II.
How is Melanotan 2 different from PT-141?
PT-141 (bremelanotide) is an analog derived from Melanotan II that was developed for sexual-health indications and is FDA-approved as Vyleesi. Melanotan II has broader melanocortin activity. For reconstitution, both are handled identically.
Why is Melanotan 2 dosed in micrograms?
Typical doses are in the hundreds of micrograms, under a milligram. 1 mg equals 1000 mcg. The calculator converts your dose to mg before solving so you can enter either unit.
How should reconstituted Melanotan 2 be stored?
Follow the storage guidance for your specific product. Reconstituted peptide vials are generally refrigerated and used within a limited window. Regimio tracks a per-vial expiry countdown so you are not guessing.
Is this calculator exact?
Yes. It runs the arithmetic with no hidden rounding and shows the concentration to four decimal places, so your draw volume and units are precise.
Is this medical advice?
No. This calculator performs arithmetic on the values you enter. It does not recommend a dose, schedule, or source. Confirm anything you do with a qualified provider.
- 1Melanotan II compound summary. PubChem, US National Library of Medicine
- 2Scenesse (afamelanotide) Prescribing Information. US FDA via DailyMed (NLM), the approved MC1R analog
This tool performs reconstitution arithmetic only. It is not medical advice and does not recommend any compound, dose, schedule, or source. Always follow guidance from a qualified provider. See our medical disclaimer.