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Pain reduction can occur before the tissue regains tensile strength

Zhou B, Wang JH, Yan ZP, et al

The goal is a clear, stable solution at a known concentration (e.g., 1 mg/mL or 2 mg/mL) that allows accurate pipetting or syringe draws

The results are mixed: some musculoskeletal studies show enhanced local healing with proximal injection, while others show comparable efficacy between subcutaneous and peri-lesional routes

The tradeoff is that you handle reconstitution and dosing yourself

It's a synthetic peptide, a short chain of 15 amino acids, and it was derived from a protective protein found in human gastric juice