How many units of Melanotan II should I draw?

It depends on your vial size, BAC water, and dose. For a 10mg vial with 2mL BAC water, a beginner dose of 250mcg is typically 5 units on a U-100 syringe. Use the calculator above for your exact numbers.

How much BAC water should I add to Melanotan II?

The standard amount is 2mL of bacteriostatic water for a 10mg vial. More water gives a more dilute solution — easier to measure small doses. Less water means fewer injections per vial. Adjust the BAC water slider in the calculator to see how it changes your syringe units.

How long does a Melanotan II vial last?

At a beginner dose of 250mcg daily, a 10mg vial lasts about 40 doses. The calculator shows exact doses per vial for your selected tier.

What syringe should I use for Melanotan II?

Most people use a U-100 insulin syringe (1mL / 100 units). For very small doses, a U-50 or U-30 syringe gives better precision. The calculator adjusts units automatically for whichever syringe you pick.

Melanotan II Dosage Calculator

Sexual HealthInjectionResearch~1-2 hours half-life

Melanotan II is a synthetic analog of alpha-melanocyte stimulating hormone (α-MSH).

Tanning without prolonged UV exposureEnhanced libido and sexual arousalMild appetite suppressionLong half-life allows infrequent maintenance dosing

Vial Size

BAC Water (mL)

Dosing Level

250mcg · Daily

Custom Dose (mcg) — optional

Syringe Type

5.0 units

100 units (1mL)

Concentration

5,000

mcg/mL

Draw Volume

0.050

Syringe Units

5.0

units

Doses / Vial

doses

Summary: Add 2mL BAC water to your 10mg vial. Draw to 5.0 units on a U-100 syringe for a 250mcg dose. This vial will last 40 doses.

Cycle Planner

Cycle Length (weeks)

Price Per Vial ($) — optional

Subcutaneous. Typical beginner frequency: daily.

Melanotan II Pharmacokinetics

Pharmacokinetics — Active Dose Over Time

t½ = ~1-2 hours (plasma)

After 1 half-life (2h): 50% remainsAfter 2 half-lives (3h): 25% remainsAfter 3 half-lives (5h): 12.5% remains

At a 500mcg dose: 50% = 250mcg remaining after 2h. Recommended frequency: Daily.

Disclaimer: This curve is a simplified first-order exponential decay model. Actual pharmacokinetics vary based on injection site, individual metabolism, body composition, and other factors. Half-life values are approximate and based on available preclinical and clinical literature. Many research peptides lack formal human pharmacokinetic studies. This is for educational purposes only — not medical advice.

Melanotan II Dosing Protocol

Level	Dose / Injection	Frequency
Beginner	250mcg	Daily
Moderate	500mcg	Daily
Aggressive	1mg	Daily

Note: Loading phase: dose daily for 7-14 days. Maintenance: 500mcg 1-2x/week. Causes skin tanning, libido enhancement, and mild appetite suppression. UV exposure enhances tanning effect. Avoid in those with many moles or melanoma history.

About Melanotan II

Melanotan II is a synthetic analog of alpha-melanocyte stimulating hormone (α-MSH). It activates melanocortin receptors (MC1R through MC5R), producing three distinct effects: skin tanning without UV exposure, enhanced libido and sexual function, and mild appetite suppression. It's loaded daily for 1-2 weeks until desired tan is achieved, then maintained with 1-2 injections per week.

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