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When collagen breaks down, fragments of it called matrikines bind to fibroblast receptors and trigger new collagen production as a repair signal

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In the published preclinical literature, BPC-157 is repeatedly described as having a wide therapeutic window and no significant reported toxicity at studied doses

This article compares the two peptides side by side, explains how they work, and looks at how they differ from other healing peptides such as TB-500