Compound atlas
Sexual health

Melanotan II

Also known as · MT-2

Peptide
Half-life
1h
approx. mean t½
Dose range
250–500 mcg
typical, not prescriptive
Category
Sexual health
primary use-case
Single-dose decay
t½ = 1h · first-order model
~4h
to clear
1× t½
50%
remaining
2× t½
25%
remaining
~4× t½
6%
remaining
0%25%50%75%100%0m1.2h2.4h3.6h4.8h6h

How a single dose clears, assuming first-order elimination. The half-life is the biggest driver of how often you dose — start a cycle to see your own cumulative concentration curve.

Overview

A melanocortin agonist used for skin tanning and libido. Causes nausea, flushing, and can darken moles. Not approved.

Mechanism of action

Non-selective melanocortin-receptor agonist (MC1 for melanin, MC4 for libido).

Typical protocol

250–500 mcg subQ daily to build a tan, then weekly maintenance; monitor moles.

Storage

Reconstituted: refrigerated, ~30 days.

Disclaimer

This page summarizes publicly available information. None of it constitutes medical advice, prescription, or recommendation to acquire, possess, or use any compound. Many peptides described are research chemicals not approved for human use in the EU. Consult a licensed physician.