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Mutations in the GSS gene prevent cells from making adequate levels of glutathione, leading to the signs and symptoms of glutathione synthetase deficiency

These peptides are commonly discussed in injectable form, although routes of administration can vary depending on the peptide and formulation

However, whereas in the case of cyanocobalamin, large quantities of unused B12 were excreted

Glutathione is safe and effective when done properly

*Correspondence: Zheng Yuan, [email protected] Disclaimer All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers