Key Facts
- CAS
- —
- Molecular Weight (MW)
- 1024.2 g/mol
- Half-life
- ~36 hours
- Unit
- mcg
- Administration Route
- Subcutaneous
- Frequency
- Daily during loading, then 2–3× weekly
- Last updated
- 12/14/2025
- Targets
- MC1RMC4R receptors
Overview
—
Protocol
- Dosage Range
- 250–500 mcg per injection
- Frequency
- Daily during loading, then 2–3× weekly
- Cycle
- 2–4 weeks loading / maintenance as needed
- Administration Route
- Subcutaneous
- Reconstitution Guide
- Add 2 mL bacteriostatic water per 10 mg vial.
Science
Mechanism of Action
Activates melanocortin receptors to stimulate melanin production.
Targets
MC1RMC4R receptors
Studies
- Tanning response in humans— Journal/year not available
Benefits
TanningAppetite suppressionLibido enhancement
Potential Side Effects
- Nausea
- Flushing
- Facial flushing
- Increased libido
References
- PMID: 15086535External link · Year —