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Here are some of the most cited benefits with quantitative evidence: Increased Procollagen Synthesis: Studies showed topical GHK-Cu increased procollagen production in 70% of subjects, outperforming Vitamin C (50%) and tretinoin (40%)

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Usefulness of different biochemical markers of the insulin-like growth factor (IGF) family in diagnosing growth hormone excess and deficiency in adults

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FBS fetal bovine serum Nle 1 - AnglV 100 ig/ inL 20 of Nle 1 - AnglV 100 ig/ inL D-Nle-Tyr-He-NH-(CI3 4)s-CONH 2 samples were centrifuged at 4C for 5 min at 2300x g to pellet erythrocytes, and the plasma was transferred to clean tubes