Safety is a top concern when considering any type of medical treatment, and B12 injections are no exception
Cysteine Supplementing with cysteine can raise plasma levels of glutathione, depending on which form of the amino acid is used
Extensive scientific research has demonstrated its ability to promote tissue regeneration, accelerate wound healing, reduce inflammation and promote gut health
These are not only damaging, but they can also single-handedly deplete glutathione, creating an imbalance between Phase 1 and Phase 2 (see below) activity.7 Toxic reactions can occur due to the buildup of reactive intermediate forms resulting from phase 1 detoxification, so further work needs to be done to process and eliminate toxins
Keith Lafferty MD, Fort Myers on October 10, 2025
Lexicomp Online