glutathione david sinclair David A. Sinclair A.O., Ph.D 70 - David Sinclair, Ph.D.:

Julien Roussel, [email protected] These authors have contributed equally to this work This article was submitted to Pharmacology of Ion Channels and Channelopathies, a section of the journal Frontiers in Pharmacology Disclaimer All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers

GHK-Cu is a naturally occurring copper complex of the tripeptide glycyl-L-histidyl-L-lysine

80 Clinical trials using lower doses of folic acid (400 mcg5 mg [6808,500 mcg DFE]) along with other supplements such as zinc, vitamin E, and selenium have not been able to consistently demonstrate benefits on semen parameters or pregnancy rates

doi: 10.1016/j.vaccine.2023.06.012.