US$ 23.81
mega glutathione caps GNC 500 mg New Glutathione Capsules 1000MG Anti-Aging
Description
But it doesn't automatically make it useless either

"Changes in the Risk of Death After HIV Seroconversion Compared with Mortality in the General Population." JAMA 300.1 (2008): 51-9

Oral Glutathione Dosage: For those opting for oral supplementation, the recommended dose is generally: 500mg to 1000mg per day for maintenance 1000mg to 2000mg per day for visible whitening effects Intravenous (IV) Glutathione Dosage: IV glutathione delivers faster, more potent results

GSH synthesis was assessed by measuring -glutamylcysteine ligase (GCL) activity in lung and liver tissue