orthomolecular glutathione L-Glutathione Ortho Molecular Products L Glutathione
Description
Interestingly, the study did find that sublingual GSH led to slightly greater glutathione levels compared to NAC, but both did increase levels

Genome-wide identification and phylogenetic analysis of Family-1 UDP glycosyltransferases in maize ( Zea mays )

[DOI] [PubMed] [Google Scholar] 9.Unver N, Freyschmidt-Paul P, Horster S, et al

the copper complex (GHK-Cu) weighs approximately 401 Da
