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In its own right, betaine has been shown to improve vascular risk factors and enhance athletic performance in addition to its role in methylation for NAD+ production and other metabolic processes.11 19 You can find high doses of TMG in products by Innerbody Labs, Prohealth Longevity, and Thorne

Additional information suggests that GHK-Cu influences gene expression related to skin regeneration, activating genes that promote skin repair and recovery (3)

[PMID: 8689934] PubMed record related to this compound for laboratory literature review

Cost considerations become significant at these higher doses

But theres another catch, because cysteine cannot be given as such, we had to supplement it in another form called N-acetylcysteine. In past studies, Sekhar and his colleagues determined that supplementing GlyNAC, a combination of glycine and N-acetylcysteine, corrected glutathione deficiency inside the cells of naturally aged mice to the levels found in younger mice