Although glutathione therapy is generally well tolerated, there are certain situations in which its administration may be contraindicated or require medical evaluation and supervision
It explains why simply taking oral B12 tablets won't work
HUBERMAN: So whether or not you consider that a side effect or a benefit depends on, I guess, your baseline level of pigmentation and how much level of pigmentation you actually want

In laboratory and pre-clinical settings, Melanotan 1 has been investigated across a range of melanocortin biology research areas, including: MC1R binding affinity, Gs/adenylate cyclase activation, and cAMP/PKA signalling pathway studies Eumelanin synthesis, tyrosinase upregulation, and melanocyte pigmentation biology Photoprotection and UV-induced DNA damage prevention models Melanocortin receptor selectivity profiling and SAR studies comparison with -MSH, MT-2, and NDP--MSH Erythropoietic protoporphyria (EPP) and porphyria photoprotection models Skin pigmentation and melanogenesis pathway research MC1R-mediated anti-inflammatory signalling in keratinocyte and immune cell models Comparative melanocortin analogue pharmacology MT-1 vs MT-2 vs Bremelanotide Circadian and seasonal melanogenesis regulation studies Melanocortin system interactions with UV exposure and oxidative stress responses What Do Studies Say About Melanotan 1
Exclusion criteria: Clinical trials