Lin, L., et al. «Protective effect of
gypenosides against oxidative stress in phagocytes, vascular endothelial cells and liver microsomes,» Cancer Biotherapy, 8 (3): 263 - 72, 1993.
However, that's not all that that they do,
gypenosides have antioxidant properties that protect
against the two main culprits of aging and disease,
oxidative stress and inflammation.