But theres some new research into whether there are antioxidants in mushrooms
Plant Physiol 128:682695 Le Martret B, Poage M, Shiel K, Nugent GD, Dix PJ (2011) Tobacco chloroplast transformants expressing genes encoding dehydroascorbate reductase, glutathione reductase, and glutathione-S-transferase, exhibit altered anti-oxidant metabolism and improved abiotic stress tolerance
12 However, the lack of a control groups in both of these studies and combination topical cream containing other active ingredients makes it impossible to attribute these benefits solely to glutathiones antioxidant effect alone
Spaeth EL, Dembinski JL, Sasser AK, Watson K, Klopp A, Hall B, Andreeff M , Marini F
Supplementing with a high-absorption formula can help fill that gap and maintain optimal cellular levels.