It does not have the very best safety reputation but in general, you do not have to worry about it
Below is a practical, evidence based guide to what you should avoid (and what to do instead) so your glutathione actually does its job
Microbubbles for human diagnosis and therapy
Once reconstituted, the vial lives in the refrigerator, never the freezer, since freezing a mixed solution can damage the peptide
General Chemicals Used for This Study Glutathione, Glutathione disulfide (GSSG), antibiotics (ciprofloxacin, amikacin, Augmentin, gentamicin and tobramycin), resazurin dye, crystal violet solution, Phosphate buffered saline (1 PBS) and Hydrogen peroxide (H 2 O 2 ) were all obtained from Sigma-Aldrich (Sydney, Australia)