Melanotan II
moderateA synthetic melanocortin peptide that stimulates melanogenesis (tanning) and has notable effects on libido and sexual function.
Overview
Melanotan II is a synthetic analog of alpha-melanocyte-stimulating hormone (α-MSH) that acts on melanocortin receptors MC1R through MC5R. Originally developed at the University of Arizona as a potential sunless tanning agent, it was found to have significant effects on sexual arousal and erectile function through MC4R activation in the central nervous system.
MT-2 produces a deep, natural-looking tan without UV exposure by stimulating melanocytes to produce more melanin. Its sexual enhancement effects led to the development of PT-141 (bremelanotide), which is an FDA-approved derivative. Despite its popularity in the biohacking community, MT-2 remains unapproved for human use and carries notable side effect risks including nausea and mole darkening.
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Benefits
- ✓Promotes skin tanning without UV exposure
- ✓Enhances libido and sexual arousal
- ✓May improve erectile function
- ✓Potential appetite suppression
- ✓Possible photoprotective effects
- ✓Long-lasting tan with maintenance dosing
Side Effects
- ⚠Nausea (very common, especially initially)
- ⚠Facial flushing
- ⚠Darkening of existing moles (requires monitoring)
- ⚠Spontaneous erections
- ⚠Fatigue and drowsiness
- ⚠Potential risk of melanoma (theoretical, debated)
- ⚠Injection site reactions
Where to Source Melanotan II
Quality and purity matter with peptides. Only buy from suppliers that provide third-party Certificate of Analysis (COA) testing. Compare verified sources below:
Ascension Peptides
Third-party tested, US-based peptide supplier with COAs on every batch.
Quick Comparison Guide
🔍 Buying Tips for Melanotan II
- • Always request Certificate of Analysis (COA) before purchasing
- • Verify the supplier's testing methodology and third-party lab credentials
- • Look for proper cold storage and shipping practices
- • Start with smaller quantities to test supplier quality
- • Join peptide communities for supplier reviews and experiences
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⚠ Research Disclaimer: This information is for educational purposes only and is not medical advice. Consult a qualified healthcare professional before using Melanotan II or any peptide. See our full medical disclaimer.
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