Each has its own trade-offs

The melanocyte interacts intrinsically with endocrine, immune, inflammatory and central nervous systems, and its activity is also regulated by extrinsic factors (such as ultraviolet radiation and drugs). The history of Melanotan 2 is quite deep, going back all the way to the 1960s when it was being studied for a completely different purpose: Research in the early 1960s showed that in rats, administration of -MSH caused sexual arousal, and work on this continued in many labs up through the 1980s, when scientists at the University of Arizona began attempting to develop -MSH and analogs as potential sunless tanning agents, and synthesized and tested several analogs, including melanotan-I and melanotan II. But in an odd twist of fate, Melanotan II reverted from being studied as a peptide for tanning to its original purpose: Led by a popular dermatologist Norman Levine, the research team which was behind the invention of the drug used frogs for experimenting the effectiveness and safety of a hormone known as Alpha MSH before using it on people

Glutathione (GSH) mops up reactive oxygen species (free radicals, lipid peroxides, and heavy metals) that can cause cellular damage
Coverage rules for Zepbound (tirzepatide for weight loss) are identical to Wegovy: covered only in mandate states on Gold or Platinum plans with prior authorization
Pnar et al., 2018
Kim YJ, et al