Melanotan 2 is a synthetic version of human alpha-melanocyte stimulating hormone and acts as a non selective melanocortin-receptor agonist. It was mainly developed as a sunless tanning option, but some clinical studies showed it also causes spontaneous penile erections, as well as general sexual stimulation. 

Some of the other “side effects” researchers noticed were reduction in compulsive behavior, reduced glucagon production, hunger suppression and even some limited addiction control.

Melanotan 2 Effects On Autism

There is some additional recent clinical research suggesting there might be a link between Mealnotan 2 and autism. Of course, melanotan treatment cannot reverse autism, sadly, but it may act on some aspects of this disorder and make it more manageable. 

In mouse model studies researchers recorded that MT2 stimulated oxytocin release, which had the potential to reduce (in some cases counteract) common ASD behaviors – behaviors that include:

• Hand clapping
• Bouncing on toes
• Body rocking
• Holding body parts in unusual positions
• Repeating vocalizations etc.

https://www.peptidesciences.com/melanotan-2-10mg?queryID=21fe0d5a93fd5eab13f77dfcf49032bf&objectID=8&indexName=psm2_default_products

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7930850/