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Acknowledgments The authors would like to acknowledge the use of generative AI technology, specifically Scholar AI, based on OpenAI's GPT-4 architecture, for revising the grammar of this paper

A ratio of 8:1 to 15:1 zinc to copper generally maintains balance

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This effect proves particularly valuable for tendon and ligament injuries where cell infiltration typically occurs slowly

established that nerve stubs placed in a collagen tube impregnated with GHK (used without copper) had an increased production of nerve growth factor and the neurotrophins NT-3 and NT-4 increased migration of cells into collagen tube and sped up the regeneration of nerve fibers

The most common side effect is temporary site irritation, including redness, itching, or mild pain at the injection location