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The copper ion is integral to its biological activity in wound-healing and gene-expression research models
6, 2020, pp
However, the efficacy of oral glutathione supplements is being questioned due to concerns about poor absorption in the gastrointestinal tract
This discovery revealed GHK as a critical signaling molecule with high affinity for copper(II) ions, forming a stable complex essential for numerous biological functions
Significant safety questions remain, particularly regarding cancer risk, glucose metabolism, and long-term effects of enhanced GH/IGF-1 signaling
Occasional nausea has been reported, especially when taking the compound without food
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