Melanotan II

Nausea (common, especially early doses)

Nausea is frequently reported, particularly during the initial loading phase.

Flushing

A temporary warm, reddened sensation in the skin, typically resolving on its own.

Spontaneous erections

An unintended physiological response linked to this compound's broad activation of melanocortin receptors.

Darkening of existing moles

Increased melanin production can deepen the color of pre-existing moles, which should be monitored.

Appetite suppression

Reduced hunger, which can be an intended effect in some contexts but an unwanted one in others.