anemia and glutathione system enhancement for cardiac protection: pharmacological options against oxidative stress ferroptosis Decreased Glutathione Peroxidase Activity Secondary
Description
doi: 10.1046/j.1471-4159.1997.69062599.x

Mol Cell, 2002

However, the side effects are mostly mild

While animal studies show promising results for tendon, muscle, and ligament repair, there are zero controlled human safety trials, and research suggests 12% to 58% of peptide products are contaminated, which is why the FDA classifies it as Category 2, and it's banned by WADA, NCAA, NFL, NBA, MLB, NHL, UFC, and PGA