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Both studies used the ingredient at 0.1% which also matches how much it usually shows up in products (at fractions of a percent)

The test reveals genetic predispositions in Phase II detoxification and antioxidant pathways, which may contextualize whether supplemental glutathione or milk thistle addresses a meaningful metabolic need

Importantly, the underlying cell death mechanism is triggered by CBS inhibition in HepG2 cells via ferroptosis, suggesting that CBS has a previously unreported function in this process

doi: 10.1016/S0300-483X(96)03484-1

Rahman MH, Bajgai J, Fadriquela A, Sharma S, Trinh TT, Akter R, et al