Comparative Antioxidant Profiles Property Glutathione (GSH) Ergothioneine (EGT) Redox activity Very high, dynamic Moderate, stable Chemical stability Low (constantly recycled) Very high Specific transporter No Yes (OCTN1/SLC22A4) Tissue accumulation Limited High (brain, liver, eyes) Mitochondrial protection Indirect (via GPx) Direct DNA protection Mitochondrial (primary) Nuclear and mitochondrial Intestinal degradation Partial Very low Human synthesis Yes (liver) No (dietary only) Mushrooms as the Only Known Source of Both Molecules While glutathione is also found in other foods asparagus, avocado, red meat ergothioneine is found almost exclusively in mushrooms
Glutathione is a tripeptide (small protein) made from three amino acids: cysteine, glycine, and glutamate
Research-grade powder sold online as not for human use is a different and riskier category
Quality and blood sugar Research-use vials are not tested or approved for human use, so purity and contamination are real risks
Key Takeaway: Success in wellness comes from small, consistent actions
And somewhere on the label, in small print, are four words that tell you everything: For Research Use Only
