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Its binding constant (pKa 16.44) is similar to albumin's copper transport site (log = 16.2), allowing GHK to exchange copper with albumin for intracellular delivery.[3] Discovery and design rationale GHK was first identified in 1973 in fractions of human plasma that promoted survival of liver cells in culture
Asparagus, avocado, spinach, and broccoli are among the glutathione-rich foods
doi: 10.1038/s41577-022-00762-9 72 PetersenMARyuJKAkassoglouK
salivarius [40, 41]
Floret yellowing due to chlorophyll loss was limited in broccoli treated with 20 M ergothioneine relative to all other treatments
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