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A real COA will name the testing laboratory (not just the vendor's internal lab), show a chromatogram trace or data summary, report purity as a percentage by HPLC area, and confirm molecular weight by mass spectrometry
GHK-Cu is most directly associated with collagen synthesis and extracellular matrix remodeling
This means use is limited to in-vitro lab testing and experimentation purposes only
There are actually ways to increase the length of time you can use it while avoiding weight gain after you stop it (more on that later)
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