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Melanotan II

Also known as: MT-II, MT2

HormonalPRECLINICAL

Clinical Status

Not approved — research discontinued due to side effects.

Mechanism of Action

Binds to MC1R (tanning) and MC4R (sexual effects). MC1R activation stimulates melanin production. MC4R activation influences sexual arousal.

Dosing Defaults

Dose

250-500 mcg

Frequency

Daily during loading, then weekly

Administration

Subcutaneous injection

Timing

Evening or before sun exposure

Food

with or without

Duration

Loading 2-3 weeks, then maintenance

Dose range: 100-1,000 mcg per dose

Pre-UV exposure timing maximizes tanning response.

Side Effects

  • Nausea
  • Facial flushing
  • Spontaneous erections
  • Darkening of moles
  • Priapism (emergency)
  • Association with melanoma risk

Contraindications & Warnings

  • Melanoma history
  • Numerous moles
  • Not medical advice
  • ILLEGAL in US, UK, Australia

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This information is for educational purposes only and is not medical advice. Dosing data is based on research literature and community reports. Always consult a qualified healthcare provider before using any peptide.