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The therapeutic use of peptides dates back over a century
Foundational GHK-Cu (sister peptide) paper: stimulates collagen synthesis in human fibroblasts, effect beginning at 10^-12 to 10^-11 M and maximal at 10^-9 M the same potency window later reported for AHK-Cu, establishing the copper-tripeptide mechanism
Country of Origin: Made in the USA with globally sourced ingredients
There are no documented serious adverse effects from taking excess vitamin B12
Finasteride and prostate cancer: a commentary
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