is glutathione in the liver Frontiers Glutathione-mediated biotransformation in the liver

Decreased (65), increased (66), and unaltered (67) glutathione levels with age have been reported

Nat Protoc

Other side effects related to neurotoxicity have also been observed in clinical studies, but they are all reversible and short-lived

Omega-3 fatty acids help keep skin hydrated and pliable and are found in salmon, chia seeds, flaxseeds, and walnuts

The average concentration to reach 150% activation was about 39.2 M

The studies were done on rodents, the b12 isnt available in the kidneys for very long, weeks, not months it seems.and whether humans with b12 deficiency because of a broken system can access this b12 we wont know without further research