This is mainly through the adrenal glands producing stress hormones such as cortisol
You could take the highest dose of glutathione in the world, but if it is destroyed in your stomach, it provides no benefit to your liver
References Waugh, D
Ingredients: Vitamin C (as Ascorbic Acid) 25 mg, Vitamin B2 (as Riboflavin RSP) 1 mg, Magnesium Malate 2 mg, Selenium (as selenomethionine) 55 mcg, Molybdenum (as molybdenum amino acid chelate) 50 mcg, Manganese Chelate 1 mg, L-Glutathione (Reduced Active Form) 100 mg, N-Acetyl Cysteine (NAC) 25 mg, CoEnzyme Q10 50 mg, PQQ (Pyrroloquinoline quinone) 2 mg, Alpha Lipoic Acid 25 mg, Milk Thistle (silybum marianum) seed extract (80% silymarin) 25 mg
Nitric-oxide (NO), VEGF/VEGFR2, and FAK-paxillin pathway activity in cell-culture models of soft-tissue repair using BPC-157