For cell culture, use sterile PBS to avoid benzyl alcohol cytotoxicity
But studies are finding that exposure to naturally occurring toxic compounds known as mycotoxins can actually alter your cells ability to adequately form glutathione
Effects of N-acetylcysteine, oral glutathione (GSH), and a novel sublingual form of GSH on oxidative stress markers: a comparative crossover study
Annus T, Wilson LR, Acosta-Cabronero J, Cardenas-Blanco A, Hong YT, Fryer TD, Coles JP et al (2017) The Down syndrome brain in the presence and absence of fibrillar -amyloidosis
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Traditional oral glutathione faces massive bioavailability challenges