modifications to thiol on glutathione Modification of proteins by glutathionylation. This reversible Toxicity of Glutathione-Binding Metals: A
Description
It converts the folate you get from food into a form your body can actually use

Vitamin C is pretty safe, too

Front Pharmacol 13:910292

Once taken up, the majority of cysteine is incorporated into GSH, some is incorporated into protein, and some is degraded into sulfate and taurine [19]
The practical question is not are peptides good or bad? It is what exact product is this, what category does it sit in, and has it been lawfully assessed or supplied in Australia? That distinction matters for consumers
