Melanotan II Dosage Guide: Research Protocols, Timing & Reconstitution

Standard Dosage Range

Research dosing range: 0.025–0.1 mg per dose (loading); 0.05–0.1 mg 1-2x weekly (maintenance)

Educational reference only

These dosage ranges are derived from preclinical research and community protocols. No human clinical dose-ranging trials have established therapeutic doses for most research peptides. Always consult a qualified healthcare provider before starting any peptide protocol.

Dosage by Use Case

Skin Tanning (Loading Phase)

0.025–0.1 mg1× daily

Duration

1–4 weeks

Inject subcutaneously. Start at the lowest dose (0.025 mg) to assess tolerance and gradually increase as tolerated. Expect noticeable tanning within 1–2 weeks.

Skin Tanning (Maintenance)

0.05–0.1 mg1–2× weekly

Duration

Ongoing

Subcutaneous injection. Adjust frequency based on desired tan depth. Monitor for mole changes or new moles.

Sexual Dysfunction / Erectile Dysfunction

0.05–0.1 mgPRN (as needed)

Duration

Single dose

Subcutaneous injection. Administer 1–3 hours prior to anticipated sexual activity. Not for frequent/daily use due to potential side effects.

Appetite Suppression

0.025–0.05 mg1× daily

Duration

Up to 4 weeks

Subcutaneous injection. Administer in the morning. Effects diminish with prolonged use. Not recommended for long-term weight loss due to potential side effects.

Timing & Frequency

For tanning, injections are typically administered in the evening, allowing melanin production to occur overnight. For sexual enhancement, administer 1–3 hours prior to anticipated activity. For appetite suppression, administer in the morning.

Cycle Guidance

Melanotan II is typically used in cycles due to its significant side effect profile and the lack of long-term safety data. A common cycle consists of a loading phase (1–4 weeks) followed by a maintenance phase (ongoing, with reduced frequency) and then a break of several weeks or months.

Reconstitution Reference

Quick reference for reconstituting Melanotan II. For custom vial sizes and concentrations, use the Reconstitution Calculator.

Common Vial Size	Typically 10 mg per vial
BAC Water Volume	1 mL bacteriostatic water for 10 mg/mL concentration
Concentration & Draw	At 10 mg/mL: 0.025 mg = 0.0025 mL (2.5 units on a 100-unit insulin syringe). 0.1 mg = 0.01 mL (10 units on a 100-unit insulin syringe)
Storage	Refrigerate at 2–8°C after reconstitution. Keep lyophilized powder refrigerated or frozen.
Stability	Reconstituted solution stable up to 14 days refrigerated. Lyophilized powder stable 12–24 months per manufacturer specifications.

Use the Reconstitution Calculator → for precise injection volumes based on your exact vial size, water volume, and desired dose.

Frequently Asked Questions

What is the best Melanotan II dosage for tanning?

Start with 0.025 mg subcutaneously once daily and gradually increase as tolerated up to 0.1 mg daily. Monitor for side effects. Reduce the dosage or frequency once desired tan is achieved.

How long does it take to see results from Melanotan II?

Visible tanning typically occurs within 1–2 weeks of daily injections during the loading phase. The rate of tanning depends on individual factors and dosage.

Can I use Melanotan II every day?

Daily use is common during the loading phase (1–4 weeks) to establish a base tan. After that, reduce the frequency to 1–2 times per week for maintenance.

What are the common side effects of Melanotan II?

Nausea, facial flushing, appetite suppression, fatigue, increased libido, and darkening of existing moles are common side effects. Rare but serious side effects include potential melanoma risk.

Is Melanotan II legal?

Melanotan II is not approved by any regulatory agency and is considered an unregulated research chemical. Its legality varies by jurisdiction. It is not legal to sell for human consumption in most regions.