side effects of melanotan injections II, also known as 'The Barbie Drug,' is an unregulated substance with serious reported that is not safe for consumer use. The bottom line: Melanotan II has Melanotan & Tanning Injections: Safe
Description
These include fatigue, jaundice (yellowing of the skin and eyes), dark urine, pale-colored stools, and abdominal discomfort, particularly in the upper right side where the liver is located

Lemonick: Icahn School of Medicine at Mount Sinai, New York, NY
Long conversations with Tom Naylor at the University of Arizona and Rex Gerald at the University of Texas at El Paso demonstrated agreement that the Suma and Jumano were one and the same and that they probably produced Chupadero Black-on-white locally in West Texas and northern Chihuahua for a short time after other production centers ceased to produce this type in the Gran Quivira area
Por lo tanto, se puede decir que las irregularidades de la piel se pueden suavizar inyectando un medicamento en el rea donde la celulitis es una preocupacin mediante una inyeccin lipoltica para destruir y eliminar las clulas grasas

The answer to this is multifactorial and requires a bit of explanation