Generally, no harm comes from vitamin B12 injections, which are usually quite safe
It makes up the majority of the human body's antioxidant defense system
Xanthine Oxidoreductase in Drug Metabolism: Beyond a Role as a Detoxifying Enzyme
Together, these findings highlight that viral-induced mitochondrial stress engages a network of innate immune sensors-including cGAS and TLR9, interplay determines whether antiviral defense or pathological inflammation predominates
[1] Forms Available to Consumers People currently use four main forms: Oral reduced glutathione (GSH): capsules or tablets, 250 mg to 1,000 mg per dose Liposomal glutathione: encapsulated in phospholipid vesicles to resist gastric degradation IV glutathione: administered clinically or at infusion lounges, 600 mg to 2,400 mg per session N-acetylcysteine (NAC): a precursor that raises intracellular cysteine and thereby boosts endogenous synthesis Oral bioavailability of unencapsulated glutathione is modest
However, the main concern with oral delivery is bioavailability, or how much of the peptide is absorbed into the bloodstream after digestion