If you want a plain-language overview of this issue, read Is Liposomal Glutathione Absorbed
W., Lowther, W
While more large-scale, double-blind clinical trials are currently underway to map the exact pharmacokinetics of new liposomal formulations, the existing body of evidence strongly supports the use of Liposomal Glutathione as a foundational, science-backed intervention for repairing mitochondrial damage, supporting liver detoxification, and restoring cellular homeostasis in complex chronic illness
Research into oral glutathione supplementation has shown promising results for those looking to support their skin's texture
For the GSSCys assays, either GSH was varied between 50 M and 2.0 mM at fixed GSSCys concentrations (25, 50, 100 and 150 M) or GSSCys was varied between 25 and 200 M at fixed concentrations of GSH (0.05, 0.1, 0.2, 0.3 and 1.0 mM for ScGrx7 or 0.3, 0.5, 1.0 and 2.0 mM for PfGrx)
This is not necessarily indicative of the ability of the materials to purify proteins from total bacterial lysates