About GGC
Gamma-glutamylcysteine is the immediate dipeptide precursor of glutathione and is rate-limiting for its synthesis. Small short-term human trials report transient rises in lymphocyte glutathione, but clinical-outcome data are lacking. Generally well tolerated.
What GGC supports
- May transiently raise glutathione levels - small short-term trials, no outcome RCTs
Clinical evidence
Limited clinical evidence. Raises glutathione biomarkers short-term; no clinical-outcome trials.
NIH Fact Sheet