Pyoderma Gangrenosum Secondary to Melanotan Cureus Imagine just wanting to be jacked and tan and you end up like this? Melanotan II is a peptide that increases the melanin in your skin and can give men a boner that Avoid nasal tanning sprays or nasal tanners entirely. These products can produce nasty side effects, such as nausea and vomiting, high blood pressure, respiratory issues, and even links to skin cancer. Nasal Changes in Oral Mucosa Associated with Melanotan II Injections: A Case Report