Melanotan I reconstitution calculator

Melanotan I at a glance

10mg vial + 2mL BAC water = 5 units = 250mcg — Frequency: daily loading, then 2-3x weekly — Best taken: before sun exposure

Full Melanotan I dosing reference — reconstitution per vial size, dose-to-units table, side effects and sources.

What it does

• A melanocortin agonist that stimulates melanin production for skin tanning/protection — the version approved (as Scenesse) for a rare light-sensitivity condition.
• Produces a more even tan than Melanotan II with a milder side-effect profile (fewer reports of nausea or unwanted sexual side effects).
• Not approved for general cosmetic tanning use — nausea, flushing, and mole changes have been reported.

Blood pressure and heart rate effects are widely claimed for Melanotan I but are not documented for its approved equivalent afamelanotide, which is selective for the skin-pigment receptor and whose label lists no such adverse reactions and no interaction studies. Those cardiovascular effects belong to non-selective melanocortin agonists like bremelanotide. Anyone on blood pressure medication (beta-blockers, ACE inhibitors, calcium channel blockers) should still mention it to their prescribing doctor and watch their numbers.

Notes

All vial sizes reconstitute to 5mg/mL (50mcg/unit) so the syringe reads the same regardless of size.

Side Effects

• Nausea and flushing — milder and rarer than Melanotan II.
• Fatigue or yawning in the first hour.
• Darkening of existing moles is reported, and moles are commonly monitored for changes.
• Not approved for tanning; Scenesse is for a rare light-sensitivity condition only.

Melanotan I vial sizes and concentrations

Standard water for each Melanotan I vial size in the Dosify Me data, and the concentration it gives. One unit is 0.01 mL on a U-100 insulin syringe.

Worked example for Melanotan I

1. The example vial: 10 mg of Melanotan I, mixed with 2.00 mL of bacteriostatic water.
2. Concentration: 10 mg ÷ 2.00 mL = 5 mg/mL.
3. One syringe unit is 0.01 mL, so it holds 5 mg/mL × 0.01 mL = 0.05 mg (50 mcg).
4. Example quantity: 250 mcg = 0.25 mg.
5. Volume: 0.25 mg ÷ 5 mg/mL = 0.05 mL.
6. Syringe reading: 0.05 mL × 100 = 5 units.

Label numbers from the Dosify Me data, used to show the arithmetic. Not a recommendation of any quantity.

Frequently asked

How many units is 250 mcg of Melanotan I?

At 5 mg/mL (the concentration every vial size mixes to), 250 mcg of Melanotan I is 5.0 units on a 100-unit insulin syringe (0.050 mL).

How many units is 500 mcg of Melanotan I?

At 5 mg/mL (the concentration every vial size mixes to), 500 mcg of Melanotan I is 10.0 units on a 100-unit insulin syringe (0.100 mL).

How many units is 1 mg of Melanotan I?

At 5 mg/mL (the concentration every vial size mixes to), 1 mg of Melanotan I is 20.0 units on a 100-unit insulin syringe (0.200 mL).

How much bacteriostatic water do I add to a 10 mg vial of Melanotan I?

2.00 mL, which gives 5 mg/mL. Other vial sizes use proportionally more or less water so the syringe reads the same.

How often is Melanotan I taken?

Daily during loading, then 2-3x weekly. Before sun exposure Typical cycle: Loading, then 2–3×/week to maintain; pause when tan is reached.

Related pages and guides

• Melanotan I dosing reference
• How many units is 250 mcg?
• How much bacteriostatic water for a 5 mg vial?
• U-100 vs U-50 insulin syringe for peptides
• Peptide injection site rotation
• All peptide guides

Other calculators

General peptide calculator · BAC water calculator · Peptide dosing chart · How to reconstitute peptides · mcg to units chart