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More human trials are needed, but the early signals and the depth of preclinical evidence are why BPC-157 remains the most widely used recovery peptide in clinical practice

When tissues sustain damage, GHK-Cu is released from extracellular matrix proteins including SPARC and collagen, functioning as a matrikine, a signal molecule that activates repair mechanisms

Some work on the hypothalamus

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These include loss or reduced libido, erectile dysfunction, orgasmic and ejaculatory dysfunction, [44, 45] development of high grade prostate cancer tumors, potential negative cardiovascular events, and depression