Reconstitution chart: 10 mg vial
| BAC water added | Concentration | Draw for 250 mcg dose | Draw for 500 mcg dose |
|---|---|---|---|
| 1 mL | 10,000 mcg/mL | 2.5 units | 5 units |
| 2 mL | 5,000 mcg/mL | 5 units | 10 units |
| 2.5 mL | 4,000 mcg/mL | 6.25 units | 12.5 units |
Draws are U-100 insulin syringe units (100 units = 1 mL). Formula: dose in mcg ÷ (vial mcg ÷ water mL) × 100. The calculator above handles any other combination.
About Melanotan II
Melanotan II is a synthetic analog of alpha-melanocyte-stimulating hormone, developed during university research into UV-free tanning. It has never been approved by any regulator anywhere, and health agencies including the FDA and the UK’s MHRA have published explicit warnings against using it. It circulates anyway, almost entirely through gray-market vendors, because it reliably darkens skin pigment.
The honest safety picture: common reported effects include nausea, facial flushing, and spontaneous erections, and the one that deserves real respect is pigment change in existing moles and freckles. New or changing moles after melanocortin use are a see-a-dermatologist event, full stop. None of that is a reason to skip the math; it is a reason to know exactly what you are injecting and how much.
Communities typically discuss a small test dose first (around 100 mcg) to gauge side effects, then 250 to 500 mcg per injection during a loading period, with UV exposure doing the actual tanning work. Vials are almost always 10 mg, which at mcg doses means one vial holds twenty to forty draws. With 2 mL of water in a 10 mg vial, a 250 mcg dose is a 5 unit draw.
Quick facts
- Status: never approved anywhere; explicit health agency warnings exist (FDA, UK MHRA)
- Known reported effects include nausea, flushing, and darkening of moles and freckles
- Communities discuss 100 mcg test doses, then 250 to 500 mcg; standard vial is 10 mg
- Watch existing moles; new or changing moles warrant a dermatologist