Use this Melanotan 2 dosage calculator to translate vial strength and BAC water volume into a precise MT2 draw in mL and syringe units. Melanotan II is unapproved in most jurisdictions and carries documented safety concerns; this page only covers the math.
- Common vial examples
- 10 mg
- Example starting dose
- 250 mcg
- Common syringe
- U-100 insulin
- Last reviewed
Storage before and after reconstitution: Lyophilised 2–8°C; reconstituted vial refrigerated and protected from light.
Quick answers: Melanotan II doses in units
With a 10 mg vial mixed with 2 mL of bacteriostatic water (5 mg/mL), on a U-100 insulin syringe:
- How many units is 250 mcg of Melanotan II?
- 5 units (0.05 mL)
- How many units is 500 mcg of Melanotan II?
- 10 units (0.1 mL)
- How many units is 1 mg of Melanotan II?
- 20 units (0.2 mL)
Educational maths only, not a dose recommendation. Use the calculator above for your own vial, water volume and syringe.
Quick math example
A 10 mg vial mixed with 2 mL gives 5 mg/mL, or 5,000 mcg/mL. A 250 mcg dose is 0.05 mL, which equals 5 units on a U-100 syringe.
Melanotan II reconstitution reference
U-100 units to draw for each common Melanotan II dose, by vial size, reconstituted with 2 mL of bacteriostatic water. Change the water volume in the calculator above to recompute for your own setup.
| Vial | Concentration | 250 mcg | 500 mcg | 1 mg |
|---|---|---|---|---|
| 10 mg | 5 mg/mL | 5 u(0.05 mL) | 10 u(0.1 mL) | 20 u(0.2 mL) |
Swipe the table to see every dose →
Educational reference only — not a dose recommendation. Units assume a U-100 insulin syringe (100 units = 1 mL on U-100). Always confirm against your own vial, diluent, and clinician or pharmacy instructions.
Melanotan 2 (MT2) dosage chart by water volume
MT2 dosage charts usually follow the same pattern: a small first dose of around 100–250 mcg to gauge tolerance, a build-up towards 500–1,000 mcg during a loading phase, then a less frequent maintenance dose. Those are community figures; Melanotan II is unapproved in most countries and has published safety concerns, so this page does not recommend a dose. The chart shows what each amount looks like on a U-100 syringe for a 10 mg vial at three water volumes.
More water makes small doses easier to read. At 10 mg/mL (1 mL of water) a 100 mcg dose is a single unit, which is hard to measure accurately; at 3.33 mg/mL (3 mL) the same dose is 3 units.
- 10 mg + 1 mL (10 mg/mL): 250 mcg = 2.5 units · 1 mg = 10 units
- 10 mg + 2 mL (5 mg/mL): 250 mcg = 5 units · 1 mg = 20 units
- 10 mg + 3 mL (3.33 mg/mL): 250 mcg = 7.5 units · 1 mg = 30 units
Melanotan 2 (MT2) dosage chart in U-100 units
| Dose | 10 mg + 1 mL10 mg/mL | 10 mg + 2 mL5 mg/mL | 10 mg + 3 mL3.33 mg/mL |
|---|---|---|---|
| 100 mcg | 1 u(0.01 mL)100 per vial | 2 u(0.02 mL)100 per vial | 3 u(0.03 mL)100 per vial |
| 250 mcg | 2.5 u(0.03 mL)40 per vial | 5 u(0.05 mL)40 per vial | 7.5 u(0.08 mL)40 per vial |
| 500 mcg | 5 u(0.05 mL)20 per vial | 10 u(0.1 mL)20 per vial | 15 u(0.15 mL)20 per vial |
| 750 mcg | 7.5 u(0.08 mL)13 per vial | 15 u(0.15 mL)13 per vial | 22.5 u(0.22 mL)13 per vial |
| 1 mg | 10 u(0.1 mL)10 per vial | 20 u(0.2 mL)10 per vial | 30 u(0.3 mL)10 per vial |
Swipe the table to see every vial →
Educational reference only — not a dose recommendation. Units assume a U-100 insulin syringe (100 units = 1 mL on U-100); “per vial” is how many of that dose the vial holds, before the small dead-space loss on each draw. Confirm against your own vial label, diluent, and clinician or pharmacy instructions.
How the Melanotan II calculation works
Melanotan II is labelled in milligrams per vial. Concentration is total mg divided by BAC water volume; the per-dose volume is your target divided by that concentration.
Starting protocols are usually small (around 250 mcg) and increased gradually, so per-dose draws are small and benefit from a U-100 insulin syringe for readability.
- 10 mg vial = 10,000 mcg total
- 10,000 mcg / 2 mL = 5,000 mcg per mL
- 250 mcg target = 0.05 mL draw
Melanotan II 10 mg vial with 2 mL example
A 10 mg Melanotan II vial mixed with 2 mL gives 5 mg/mL, or 5,000 mcg/mL.
A 250 mcg starting dose is 0.05 mL — just 5 units on a U-100 syringe. A 500 mcg dose would be 0.1 mL, or 10 units.
- 10 mg / 2 mL = 5 mg/mL
- 250 mcg / 5,000 mcg per mL = 0.05 mL = 5 U-100 units
- 500 mcg / 5,000 mcg per mL = 0.1 mL = 10 U-100 units
Melanotan 2 dosage in units: MT2 draws from a 10 mg vial
Community protocols usually describe MT2 dosage in micrograms — a small starting dose to test tolerance, stepped up over days to a larger dose, then a less frequent maintenance dose. This page does not recommend a dose; it converts whatever target you enter. What it can show is what each commonly cited amount looks like on a U-100 syringe from a 10 mg vial.
With 2 mL of bacteriostatic water the vial is 5 mg/mL (5,000 mcg/mL), so every 100 mcg is 2 units. With 1 mL it is 10 mg/mL and every 100 mcg is 1 unit, which makes small starting doses hard to read — most people use 2 mL for that reason.
- 100 mcg = 2 units · 250 mcg = 5 units · 500 mcg = 10 units · 1 mg = 20 units (10 mg in 2 mL)
- At 10 mg/mL (10 mg in 1 mL) halve those: 250 mcg = 2.5 units, 500 mcg = 5 units
- A 10 mg vial holds forty 250 mcg doses or twenty 500 mcg doses before dead-space loss
Melanotan 2 (MT2) 10 mg vial: units per dose (2 mL BAC water)
U-100 units to draw for each common Melanotan II dose, by vial size, reconstituted with 2 mL of bacteriostatic water. Change the water volume in the calculator above to recompute for your own setup.
| Vial | Concentration | 250 mcg | 500 mcg | 1 mg |
|---|---|---|---|---|
| 10 mg | 5 mg/mL | 5 u(0.05 mL) | 10 u(0.1 mL) | 20 u(0.2 mL) |
Swipe the table to see every dose →
Educational reference only — not a dose recommendation. Units assume a U-100 insulin syringe (100 units = 1 mL on U-100). Always confirm against your own vial, diluent, and clinician or pharmacy instructions.
Loading versus maintenance draws
Community protocols often use a smaller starting dose, then a maintenance dose once a target is reached. Because both come from the same vial, only the entered target changes — the concentration stays fixed until you mix a new vial.
At 5,000 mcg/mL, stepping from 250 mcg to 500 mcg simply moves the draw from 5 units to 10 units. Re-run the calculator whenever the target changes so the units stay correct.
- Same vial, same concentration — only the target changes
- 250 mcg = 5 units; 500 mcg = 10 units at 5 mg/mL
- Re-run the math each time you change the dose
Regulatory and safety context
Melanotan II is unapproved in most major markets and has been associated with skin lesions, nausea, and other adverse effects in published reports. This page only covers the calculator math; the decision to use it sits outside the scope of this tool.
Frequently asked questions
What is on an MT2 dosage chart?
Is Melanotan II approved as a medicine?
Why are starting Melanotan II doses so small?
Can I stack Melanotan II with other peptides?
Does the draw change as I increase the dose?
What is a typical MT2 dosage?
How many units is 500 mcg of Melanotan 2?
Primary sources
Background references for this calculator. PepSync does not make clinical claims; these citations support the educational context only.
- 1
- 2Melanotan Tanning Injection: A Rare Cause of PriapismPMC / National Library of Medicine · 2021