Michel CM, Murray MM, Lantz G, Gonzalez S, Spinelli L, Grave de Peralta R (2004)
Dosage For Adults: As a dietary supplement, take one softgel (250mg) twice daily, or as directed by a licensed healthcare practitioner
Repine JE, Elkins ND (2012) Effect of ergothioneine on acute lung injury and inflammation in cytokine insufflated rats

Possible glutathione risks and side effects include: Allergic reactions Skin rashes, itching, or swelling at the injection site, particularly with lower quality glutathione brands Kidney strain High dose glutathione administered over extended periods without medical supervision can place stress on kidney function Thyroid interference Some studies suggest excessive glutathione use may affect thyroid hormone levels over time Nerve damage Rare but documented in cases where injections were administered incorrectly by untrained practitioners Skin irregularities Uneven whitening or patchy skin tone when sessions are inconsistent or self-administered Infection risk Any intravenous treatment carries infection risk if sterile protocols are not strictly followed The single most effective way to minimize all these glutathione injection side effects is to choose a certified aesthetic clinic with qualified medical staff, verified product sourcing, and proper clinical protocols

At visit 5, when returning the diaries, the canister was also returned for weighing to check compliance, and the other half of the study product was provided in a new canister for the remainder of the study
Mol Cancer Ther 3(10):1249-62, 2004