glutathione iv shot Therapy: Detox, Brighten Skin & Boost Immunity Glutathione - Beyond the Surface

Under DSHEA, manufacturers can sell glutathione capsules, tablets, or powders without submitting safety data to the FDA as long as the product contains ingredients with a documented history of safe use prior to 1994 or meets the New Dietary Ingredient (NDI) notification process

Cells were imaged in fresh FluoroBrite DMEM supplemented with 4 mM glutamine, 1 mM sodium pyruvate, 10% FBS and penicillin (100 U ml 1 )/streptomycin (100 g ml 1 )/fungizone (0.25 g ml 1 )

That's the manufacturer's guideline and the standard the research community follows

Glutathione S-transferase polymorphisms and risk of ovarian cancer: a HuGE review