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ghk-cu plasma levels age decline 200 ng/ml to 80 ng/ml Comment "curious" for the full newsletter. π might be the weirdest peptide in existence. And I bet nobody's ever told you how it really works. Consider this: Copper is an element Sublingual GHK-Cu vs Injectable GHK-Cu:
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[DOI] [PubMed] [Google Scholar] 97.Guha N., Dashwood A., Thomas N.J., Skingle A.J., Snksen P.H

and J.J.H

Body weight affects dosing

doi: 10.1016/j.semnephrol.2010.09.006
