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The 2016 Lee et al

Plasma levels drop from approximately 200ng/ml at age 20 to 80ng/ml by age 60

As research continues, GHK-Cu remains a compelling compound for ongoing laboratory investigation into regenerative and longevity-associated mechanisms

Copper(II) facilitates GHKs interaction with cell surface receptors and intracellular signaling cascades, including TGF- and integrin pathways, which in turn regulate fibroblast activity and keratinocyte differentiation

Cysteine and L-Methionine are Amino Acids that are well known to thicken hair

Most patients receive a combination formulation rather than a single ingredient, selected by the provider based on your goals and any active treatments underway