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Using a collagen gel contraction assay, we observed that primary fibroblasts from the lungs of aged GHK-treated mice exhibited enhanced contraction compared to fibroblasts from placebo-treated mice (Figure 4), further supporting the hypothesis that GHK promotes the resolution of collagen scars

doi: 10.1177/23259671211008834 [DOI] [PMC free article] [PubMed] [Google Scholar] 11

Some evidence also points to potential anti-aging and muscle-preserving effects when paired with exercise and proper nutrition

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