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Acute soft tissue (strains, minor muscle) Typical early-change window Days to about 1 week What is happening Reduced discomfort and improved mobility as early repair activity ramps up Evidence base Preclinical + observation Gut-related support Typical early-change window Roughly 2 to 4 weeks What is happening Early research focus given BPC-157s origin in gastric juice Evidence base Preclinical-heavy Tendon / ligament Typical early-change window Roughly 4 to 8 weeks What is happening Slow-remodeling tissue with limited blood supply

Nasal administration, on the other hand, works through a completely different mechanism

doi: 10.1016/j.bcp.2023.115854 33 MontaltoFIDe AmicisF

Half-life of nitric oxide in aqueous solutions with and without haemoglobin