The vitamin C content plays a key role in the production and maintenance of glutathione
Its supporting evidence is animal and cell-culture research, some of it genuinely interesting (systemic anti-inflammatory and gene-expression effects have been studied in mice), but animal injection data doesn't establish human injectable dosing, safety, or efficacy any more than any other animal study does
NAD+ levels go down as you age, which leads to cognitive decline, cancer, metabolic disease, and muscle loss
Whey protein and its concentrates are abundant in sulfur-containing amino acids such as Cys and methionine, so it can supplement cysteine and efficiently improve GSH levels [99, 104]
Individuals wanting a patented glutathione option instead of standard reduced glutathione
$1.82/serving Like all Pure Encapsulations products, this liposomal glutathione supplement is free of artificial colors and sweeteners, nuts, gluten, and dairy