Melanotan II

Tanning plus sexual-function pathways. Unapproved. Nausea and freckling are common.

What it does / how it works

A cyclic melanocortin agonist. It tans and also hits the same sexual-function pathways as PT-141. More side effects. Unapproved.

Class	Cyclic non-selective melanocortin agonist
Typical vial	10 mg
Reconstitution	2 mL BAC per 10 mg = 5 mg/mL (250 mcg = 5 units)
Storage after mix	2–8°C, use within 28 days

Protocol

Goal	Dose	How often	How long	Route
Days 1-14 load	250 mcg	Every other day	1-2 weeks	SubQ
Weeks 3+	250-500 mcg	1-2x weekly	Maintenance as needed	SubQ
Hold	Skip a dose if nauseous	Do not daily-load for months	–	–

Watch: Prefer labelled PT-141 if the endpoint is sexual function.

Melanotan II FAQ — Australia

Where can I buy Melanotan II in Australia?

ELV8 Labs offers Melanotan II in 10 mg vials, third-party tested at a leading Australian university. For research purposes only.

What is the difference between Melanotan I and Melanotan II?

Melanotan I (Afamelanotide) is a linear α-MSH analogue that selectively targets MC1R for melanogenesis only. Melanotan II is a cyclic peptide that non-selectively activates multiple melanocortin receptors (MC1R, MC3R, MC4R, MC5R), producing broader effects including appetite and sexual function modulation alongside melanogenesis.

What is the difference between Melanotan II and PT-141?

PT-141 (Bremelanotide) was derived from Melanotan II and is more selective for MC4R, targeting sexual function pathways specifically without the melanogenic effects of MT-2. PT-141 is available separately from Australian suppliers.

Does UV exposure affect Melanotan II research?

Melanogenesis is a gradual process — melanocytes require sustained stimulation to produce and distribute significant melanin. The loading phase provides this sustained stimulation, while reduced maintenance dosing preserves the achieved pigmentation level without continued daily administration.

Why does Melanotan II use a loading and maintenance protocol?

Recommended Supplier — Melanotan II Australia

Our products offer premium-grade research materials with independent testing at a leading Australian university. Every batch is strictly verified by RP-HPLC and LC-MS. For research purposes only.

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