Health problems, like diabetes, can cause darkened skin too
Remarkably, metformin demonstrated immunomodulatory features in pathological contexts, including cancer, hyper-inflammatory diseases, and infectious disease, and its potential use for other medical conditions is currently being investigated in many clinical trials (Foretz et al., 2023)
If you just administer at night the body increases melanin production in areas with greater natural melanocyte activity, genitals, freckles, moles, etc leading to many of the sides reported with MT, but if used in conjunction with UV, the body has mechanisms to increase melanin production and melanocyte activity in areas that need the production to protect from UV photodamage, such as the skin
The concentration of vitamin E in the brain is negatively correlated with the concentration of A in the brain (Morris et al., 2015) and can help reduce the accumulation of A in the rat brain and increase the clearance of A in the blood (Nishida et al., 2009)
Osmotic fragility of erythrocytes is a parameter that at least in part regulates hemolysis under hypo-osmotic conditions
4.5 Septicemia Bacterial inflammation triggers significant oxidative stress, during which the metabolism of oxidized phospholipids is regulated, at least in part, by mitochondrial -oxidation pathways (61)