glutathione generic General scheme of (GSH) conjugation to a Liposomal Glutathione

Vellanki, K

Comparing this to SmTGR structures lacking NADPH (PDB 2X8C), the phenol of Y296 is oriented approximately perpendicular to the isoalloxazine re-face, aligned with the central N1-N5 axis, and overlapping with the NADPH binding site (Figure 2)

Glutathione recycling is a good place to start increasing glutathione activity inside cells

As for the role that caffeine has in the purported benefits of the coffee enema, drinking coffee is a far more effective method for increasing the amount of caffeine in your blood (and hence causing vasodilation to potentially send toxins from the blood into the colon, or causing increased bile acid secretion to potentially facilitate liver detoxification) compared to administering it at the other end

Cancer history: Growth-promoting peptides require caution in those with cancer history