ARA-290 vs BPC-157

ARA-290

ARA-290, also known as cibinetide, is a small peptide derived from the structure of erythropoietin that selectively engages the innate repair receptor (a heteromer of the EPO receptor and the CD131 beta-common receptor) without stimulating erythropoiesis. Research has explored its role in modulating inflammatory cascades, supporting neuronal and vascular tissue under stress, and influencing pain pathways associated with small-fiber neuropathy. Because it does not raise hematocrit, it has been investigated as a tool for studying tissue-protective EPO signaling in isolation. This compound is supplied as a lyophilized powder for in-vitro and laboratory research use only and is not intended for human or veterinary use.

BPC-157

BPC-157 (Body Protection Compound-157) is a 15-amino acid peptide derived from a partial sequence of human gastric juice protein. Its mechanism of action involves upregulation of growth factor expression including VEGF (vascular endothelial growth factor), FGF (fibroblast growth factor), and activation of the FAK-paxillin signaling pathway, which collectively promote angiogenesis, fibroblast migration, and collagen deposition. Extensive preclinical research from the laboratory of Predrag Sikiric at the University of Zagreb has demonstrated BPC-157's effects across numerous animal models including tendon transection (Staresinic et al., Journal of Orthopaedic Research, 2003), muscle crushing injuries, ligament healing, and gastrointestinal lesion repair. Studies suggest BPC-157 operates through the nitric oxide (NO) system and interacts with the dopaminergic system, which may explain its observed gastroprotective and cytoprotective properties in rodent models. Compared to other tissue repair peptides like TB-500 (Thymosin Beta-4), BPC-157 appears to have a stronger affinity for gastrointestinal tissue repair and tendon healing, while TB-500 shows broader systemic tissue migration. BPC-157 is notably stable in human gastric juice, an unusual property for a peptide. Most published research remains in animal models; no large-scale human clinical trials have been completed to date. Store lyophilized powder at -20C; reconstitute with bacteriostatic water and refrigerate at 2-8C for up to 14 days. BPC-157 is among the most widely studied peptides in regenerative medicine laboratories, orthopedic research institutions, and gastroenterology departments.

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