Tanning, fake tan and Melanotan Cancer Research UK In a major policy shift, the U.S. Food and Drug Administration is reconsidering restrictions on several controversial peptides, including trending compounds like BPC 157 and Melanotan II. The move comes as demand for Changes in Oral Mucosa Associated with Melanotan II Injections: A Case Report Eruptive Dysplastic Nevi Following Melanotan Use Actas Dermo Sifiliogrficas FDA's Overreach on Compounded Peptides You Should Avoid Using Nasal Tanning Sprays