Melanotan II vs Mazdutide
Side-by-side comparison of key properties, dosing, and research.
Sexual Health & Libido
Melanotan IIGLP-1 / Weight Loss Agonists
Mazdutide- Summary
- Melanotan II is a synthetic analog of alpha-melanocyte-stimulating hormone (α-MSH) that stimulates melanin production (skin tanning), suppresses appetite, and enhances sexual function. It is not FDA-approved and has significant safety concerns including mole changes and cardiovascular effects.
- Mazdutide is a once-weekly GLP-1/glucagon dual receptor agonist developed by Innovent Biologics and Eli Lilly. Phase 2 trials in Chinese populations demonstrated up to 11.3% body weight reduction at 6 mg over 24 weeks. It also improves liver fat, glycemic control, and lipid profiles. Phase 3 trials are ongoing primarily in China.
- Half-Life
- 1–2 hours
- ~7 days
- Admin Route
- SubQ
- SubQ
- Research
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- Typical Dose
- 0.25–0.5 mg
- 1.5 mg → 3 mg → 4.5 mg → 6 mg
- Frequency
- Once daily
- Once weekly
- Key Benefits
- Promotes skin tanning and melanin production
- Reduces UV exposure needed to tan
- Enhances libido and sexual function
- May suppress appetite
- Faster, deeper tan development
- Longer-lasting tan maintenance
- Potential photoprotective effects
- Up to 11.3% body weight reduction at 24 weeks (Phase 2, 6 mg dose)
- Significant reduction in liver fat content (NAFLD/MASH potential)
- Improves HbA1c and fasting glucose in type 2 diabetes
- Favorable lipid profile changes (reduced triglycerides)
- Once-weekly subcutaneous dosing
- Potential for superior weight loss vs GLP-1 monotherapy
- Side Effects
- Nausea (very common, especially in first days)
- Facial flushing
- Spontaneous erections in men
- Darkening or changes in existing moles (monitor closely)
- +3 more
- Nausea
- Vomiting
- Decreased appetite
- Diarrhea
- +3 more
- Stacks With
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