Melanotan II reconstitution calculator.
Melanotan II is not approved anywhere and comes as a 10 mg vial, with amounts discussed in the low hundreds of micrograms. A large vial against small targets means a concentrated solution and very small draws.
Reference range often cited for Melanotan II: 250–500 mcg, shown for orientation only, not a recommendation. Enter your own target below. Read the evidence →
Each unit on a 100u · 1.0 mL syringe ≈ 50 mcg of this solution.
Show the math
More water → lower concentration → more units for the same amount.
What changes the math for Melanotan II.
- 10 mg in 2 mL is 5,000 mcg/mL, so 250 mcg is just 5 units. In 5 mL that becomes 12.5 units, which is easier to read.
- With small targets against a 10 mg vial, doses per vial runs high, so the reconstituted stability window matters more than the count.
- Melanotan II is unapproved and has documented safety concerns, which the compound profile covers. The arithmetic here says nothing about whether any amount is safe.
Formats and worked examples.
How Melanotan II is actually administered, with the concentration arithmetic written out. Amounts in these tables are illustrative examples of the math, never a recommendation.
Melanotan II: research formats
Choose the format you are researching to see route-specific notes.
Common research format; note the FDA has never approved Melanotan II.
Melanotan II is sold as a 10 mg lyophilized vial. It is not FDA-approved. Research use follows the standard subcutaneous format: reconstituted with BAC water. Melanotan II contains tryptophan and is light-sensitive: store in an amber vial and minimise light exposure during preparation.
Tryptophan-containing peptides (including Melanotan II) are photosensitive: wrap vials in foil or use amber glass. Significant Trp degradation can occur within hours of light exposure.
FAQ.
How much bacteriostatic water for a 10 mg melanotan II vial?
Whatever makes your intended draw readable. 2 mL gives 5,000 mcg/mL and 5 mL gives 2,000 mcg/mL, the same peptide in more liquid. Small targets usually favour the larger volume.
How many units is 500 mcg?
On 10 mg in 2 mL (5,000 mcg/mL) it is 10 units. On 10 mg in 5 mL (2,000 mcg/mL) it is 25 units.
Is melanotan II legal?
It has no marketing approval, and the legal status page sets out where it stands including sport and import considerations. This tool is arithmetic and takes no position on use.
This page is arithmetic on numbers you enter. It does not recommend an amount of Melanotan II, and nothing here is medical advice. For what the published evidence actually supports, read the Melanotan II profile, and for regulatory status see is Melanotan II legal. Reviewed June 1, 2026.
Different question? The general reconstitution calculator covers every compound on the site, the blend calculator handles multi-peptide stacks, and vial longevity turns a vial into weeks of supply.
PepCue remembers your Melanotan II vial, concentration, and draw, then tracks every dose against it. Free.