Peptide profile
Melanotan II
Melanocortin agonist for tanning and sexual function
Compare Melanotan II with other peptides →Summary
A peptide that helps you tan and boosts your sex drive.
- Typical dose
- 0.25-1.0mg Daily for loading, then weekly
- Route
- Subcutaneous
- Cycle length
- 10-day loading, then maintenance
- Evidence
- Animal data
Mechanism
How it works
Melanotan II works like a dimmer switch for both skin color and sexual drive — turning up pigmentation while brightening libido.
Synthetic α-MSH analog non-selectively activating MC1-R (melanogenesis) and MC4-R (libido/appetite).
Reported in research
Benefits
- Helps your skin tan without sitting in the sun
- Boosts sex drive and helps with erections
- May make you feel less hungry
Context, not a prescription
Dosing
- Typical range
- 0.25-1.0mg Daily for loading, then weekly (Subcutaneous)
- Cycle length
- 10-day loading, then maintenance
Safety
Side effects & contraindications
Possible side effects
- Nausea (common)
- Facial flushing
- Spontaneous erections
- Darkening of existing moles
- Severe nausea
- Excessive mole darkening
- Prolonged erections
Contraindications
- High mole count or atypical moles
- Melanoma history
- Pregnancy or breastfeeding
Research information, not medical advice. Always consult a licensed clinician before considering any peptide.
In depth
Full profile
What it does
Tanner skin, more sex drive, and maybe less hunger.
How it works
Melanotan II works like a dimmer switch for both skin color and sex drive. It turns up your tan while turning up your sex drive.
It turns on special switches in your skin, brain, and body.
What to expect
Your skin darkens after 3-5 shots. Sex drive goes up in 15-60 minutes.
- Days 1-3: You might feel sick for a bit. Your skin starts to darken.
- Days 5-10: Your tan keeps getting darker.
- Week 2 onward: You take less of it now to keep your tan.
Good to know
- Start with a very tiny dose (0.1mg)
- Have a skin doctor check your moles
- Take medicine to stop feeling sick
Staying safe
- Feeling sick (happens a lot)
- A flushed, red face
- Surprise erections
- Moles getting darker
Avoid if you have:
- People with lots of moles or odd-looking moles
- People who had skin cancer before
- Women who are pregnant or breastfeeding
Mechanism of action
Synthetic α-MSH analog non-selectively activating MC1-R (melanogenesis) and MC4-R (libido/appetite).
Activates melanocortin receptors in skin, brain, and peripheral tissues.
Pharmacodynamics
Pigmentation within 3-5 injections; libido within 15-60 minutes.
Skin tanning, increased libido, possibly reduced appetite.
Timeline
- Days 1-3: Nausea (transient) and early pigmentation.
- Days 5-10: Progressive tanning effect.
- Week 2 onward: Maintenance phase with reduced dosing.
Comparisons
- Melanotan II — effectiveness High, safety Fair, cost $, Easy to use
- PT-141 — effectiveness High, safety Good, cost $$$, Easy to use
Adverse effects
Common:
- Nausea (common)
- Facial flushing
- Spontaneous erections
- Darkening of existing moles
Rare:
- Severe nausea
- Excessive mole darkening
- Prolonged erections
Contraindications & risk mitigation
Contraindicated in:
- High mole count or atypical moles
- Melanoma history
- Pregnancy or breastfeeding
- Start with very low dose (0.1mg)
- Monitor moles with dermatologist
- Use anti-nausea medication
Qué hace
Piel más bronceada, mayor deseo sexual y quizás menos hambre.
Cómo funciona
Melanotan II funciona como un regulador de intensidad para el color de la piel y el deseo sexual. Aumenta tu bronceado mientras estimula tu deseo sexual.
Activa interruptores especiales en la piel, el cerebro y el resto del cuerpo.
Qué esperar
Tu piel se oscurece después de 3-5 inyecciones. El deseo sexual aumenta en 15-60 minutos.
- Días 1-3: Es posible que te sientas un poco enfermo. Tu piel comienza a oscurecerse.
- Días 5-10: Tu bronceado se va intensificando.
- Semana 2 en adelante: Ahora tomas menos cantidad para mantener el bronceado.
Bueno saber
- Comenzar con una dosis muy pequeña (0.1 mg)
- Pedir a un dermatólogo que revise tus lunares
- Tomar medicación para evitar las náuseas
Manteniéndose seguro
- Sentirse enfermo (muy común)
- Cara enrojecida o sonrojada
- Erecciones inesperadas
- Lunares que se oscurecen
Evitar si tienes:
- Personas con muchos lunares o lunares con aspecto inusual
- Personas que hayan tenido cáncer de piel anteriormente
- Mujeres embarazadas o en período de lactancia
Mecanismo de acción
Análogo sintético de α-MSH que activa de forma no selectiva MC1-R (melanogénesis) y MC4-R (libido/apetito).
Activa los receptores de melanocortina en la piel, el cerebro y los tejidos periféricos.
Farmacodinamia
Pigmentación en 3-5 inyecciones; libido en 15-60 minutos.
Bronceado de la piel, aumento de la libido y posible reducción del apetito.
Cronología
- Días 1-3: Náuseas (transitorias) y pigmentación inicial.
- Días 5-10: Efecto de bronceado progresivo.
- Semana 2 en adelante: Fase de mantenimiento con dosis reducidas.
Comparaciones
- Melanotan II — efectividad Alta, seguridad Moderada, costo $, Fácil de usar
- PT-141 — efectividad Alta, seguridad Buena, costo $$$, Fácil de usar
Efectos adversos
Comunes:
- Náuseas (comunes)
- Enrojecimiento facial
- Erecciones espontáneas
- Oscurecimiento de lunares existentes
Raros:
- Náuseas severas
- Oscurecimiento excesivo de lunares
- Erecciones prolongadas
Contraindicaciones y mitigación de riesgos
Contraindicado en:
- Alta cantidad de lunares o lunares atípicos
- Antecedentes de melanoma
- Embarazo o lactancia
- Comenzar con una dosis muy baja (0.1 mg)
- Monitorear lunares con un dermatólogo
- Usar medicación antiemética
Reference data
Specifications
- Route
- Subcutaneous
- Cycle length
- 10-day loading, then maintenance
FAQ
Common questions
What are the main side effects?
Nausea, facial flushing, increased libido, spontaneous erections, and darkening of moles.
What is the evidence level?
This compound is classified as Animal data. Most data comes from preclinical animal studies. Human clinical trial evidence is limited or absent.
Research
Research & sources
Current evidence for Melanotan II is rated as Animal data. Research is based primarily on animal models.
- 1. Melanotan II review (2009) — DOI:10.1111/j.1600-0749.2009.00586.x
- 2. Melanotan II review (2009)