s-acetyl-l-glutathione human study bioavailability Frontiers Liposomal Glutathione Uses and Benefits

So potentially the answer is maybe in another solid tumors you'd see it

Its potent antioxidant properties help to protect cells from oxidative damage, while NAC, Alpha Lipoic Acid, Vitamin C, and Zinc work together to regenerate glutathione back to its active form and support healthy bones, teeth, gums, and overall body make-up.

The ideal frequency really depends on your personal wellness goals

ROS and RNS metabolites at lower concentrations function as signal transducers acting on various regulatory levels and thus affect the cellular phenotype (DAutreaux and Toledano, 2007)

One of the things I love about vitamin B12 is its excellent safety profile