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Plasma GHK-Cu levels start dropping measurably around age 25, the same age you begin losing roughly 1% of your collagen per year
Levels of GHK naturally decline as we age and research has demonstrated that this peptide can stimulate synthesis of collagen, elastin, and glycosaminoglycans in the skin
Bioavailability is lower than injection, so some protocols use higher oral doses
Tracking the origins and drivers of subclonal metastatic expansion in prostate cancer
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