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See the full evidence review for a study-by-study breakdown
By potentially supporting skin-related signaling pathways, GHK-Cu serum may also contribute to hydration and a more even, refreshed-looking complexion over time
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PubMed 31
One of the most important of those signals is GHK-Cu a small copper-binding peptide that plays a central role in collagen synthesis, wound healing, and gene-level tissue repair
BPC-157 vs TB-500 for Muscle & Soft-Tissue Research For muscle-specific research, strains, tears, and delayed-onset muscle soreness models, TB-500's cell-migration mechanism gives it a stronger theoretical and preclinical basis than BPC-157
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