Side effects are rare, but may include mild soreness at the injection site
Not intended to diagnose, treat, cure, or prevent any disease
Pain and tenderness in the shoulder and neck muscles are also common
As previously stated in this review, GSH is the most abundant intracellular antioxidant and plays major roles in the antioxidant defense system and maintenance of redox homeostasis in both the PNS and CNS (Hristov BD, 2022)
Other markers are not commonly measured either in clinical practice or in many clinical trials, making it difficult to interpret whether positive outcomes in some studies are due to correcting a deficiency or due to other pharmacological functions of B12
Zinc and Antioxidant Defense Zinc helps maintain the strong antioxidant effects of glutathione