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The difference between AHK-Cu and GHK-Cu lies in their target specificity. Both use copper ions as an enzymatic cofactor, but their amino acid sequences determine their individual affinity. 🧬 GHK-Cu targets extracellular

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Studies examining ergogenic supplements found concerning rates of problems: 12% to 58% contamination, 30% containing incorrect amino acid sequences, and 65% exceeding safe endotoxin thresholds