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Route of administration is also mechanistically relevant: injectable BPC-157 achieves local tissue concentrations not accessible via oral dosing, which matters when the target is intra-articular or peri-articular

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Key Analytical Concerns Solubility-related variability Non-covalent molecular association Aggregate formation Stability-indicating method validation Aggregation analysis is particularly important because molecular aggregation can affect: Product potency Pharmacokinetics Immunogenicity risk Long-term formulation stability Combining size exclusion chromatography (SEC) with MS-based analytical techniques significantly improves aggregate characterization and stability assessment accuracy