There are a few strange neurological effects reported with Melanotan-II
In a healthy, optimally functioning body, this compound acts as a critical metabolic traffic cop, directing how and when cells utilize dietary fats for fuel
Short answer yes
22 Levels of GH binding activity, IGFBP-1, insulin, blood glucose and cortisol in intensive care patients. National Center for Biotechnology Information
Because BPC-157, copper peptides, and melanocortin derived fragments differ in size and binding behavior, studies may use them together to probe compatibility, stability, and assay specific performance under controlled laboratory conditions
However, only half of orally-consumed vitamin B12 is absorbed into your system and a particularly high dose may be necessary to ensure you get enough