The FDA does not review them for safety, effectiveness, or quality before they are marketed
In research, Melanotan 2 darkens skin at lower cumulative amounts because it is more potent, while Melanotan 1 produces a slower, more even darkening with fewer side effects
(PubMed) Reid ME, Duffield-Lillico AJ, Slate E, et al
doi: 10.1038/s41594-024-01481-6 72 ShutoY.ShibasakiT.WadaK.ParharI.KamegaiJ.SugiharaH.et al
this increases oxidative stress and may be another factor contributing to ALD
More plausibly, these agents may access the brain via regions lacking classical tight-junction architecture, such as the AP, subfornical organ, or median eminencecollectively known as circumventricular organs [67]