It can cause muscle fatigue, which reduces the amount of effort your muscles can perform
Reutrakul S, Sumritsopak R, Saetung S, Chanprasertyothin S, Anothaosintawee T (2017) The relationship between sleep and glucagon-like peptide 1 in patients with abnormal glucose tolerance
[1] [3] Non-GMO Phospholipids with WHO-GMP Manufacturing LipoEdge Glutathione uses non-GMO sunflower-derived phosphatidylcholine, which is oxidatively stable, allergen-neutral, and clean-label compliant
Metformin has been around longer
While the bulk of research on both melanotan molecules has focused on their role as a tanning agent and corresponding potential to lower the risk of skin cancer [2], clinical studies involving MT-II have investigated its abilities to decrease appetite, increase libido, and diagnose and treat male erectile dysfunction [1, 3]
Thats a big metabolic setback