glutathione injection safe or not as a skin whitening agent: Facts, myths, evidence and controversies Glutathione Injections in Antalya: Benefits,

Without the gluta-thionylation, P-SOH groups may be further oxidized resulting in protein deactivation [42]

Safety and side effects: A meta-analysis of multiple studies in COPD patients showed no significant adverse effects at doses ranging from 600 mg to 3g/day.[ref] Studies in healthy adult athletes go up to 20g/day (not recommending this, just including it for safety).[ref] Conversely, in Parkinsons patients, there was a high number of adverse events at 6g/day of NAC

10.1038/201185a0 33 SchaferF

Animal studies of TB-4 and its derivative TB-500 show that these peptides promote tissue repair and angiogenesis, the process by which new blood vessels are formed