It is naturally synthesized within the cytosol of almost every cell in the body, with the highest concentrations found in the liver, lungs, and brain
In reality, methylation depends on cellular energy, mitochondrial one-carbon metabolism, amino-acid handling, redox balance and the removal of homocysteine and adenosine
Beyond its aesthetic appeal, glutathione also supports liver health , aids in recovery from illness, and has shown promising results in boosting cognitive function and slowing down signs of aging
Figure 3D provided a more granular perspective
This is why modern anti-ageing supplements increasingly focus on combining energy support with antioxidant defence
Source Data Extended Data Fig