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Vitamin B12 absorption occurs primarily in the terminal ileum through intrinsic factor-mediated absorption (for both dietary and supplemental B12) and passive diffusion (particularly relevant for high-dose supplements)
The injections bypass absorption barriers and can be suitable for people with a B12 deficiency
For scientifically engaged individuals (qualified researchers, laboratory professionals, and academic or institutional research settings) who follow developments in peptide biochemistry and skin research science, it offers an accessible explanation of why this copper peptide complex has attracted such sustained scientific attention
& Fries, J
GHK-Cu binds with copper ions and interacts with cells to trigger a range of biological processes
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