[DOI] [PMC free article] [PubMed] [Google Scholar] 45.Bonnet L., Hachemi M.A., Karkeni E., Couturier C., Astier J., Defoort C., Svilar L., Martin J.C., Tourniaire F., Landrier J.F
It supports: Red blood cell production Nervous system function DNA synthesis Energy metabolism A deficiency in Vitamin B12 can lead to fatigue, weakness, nerve damage, and anaemia
TB-500 makes more sense when: The injury is deep or hard to reach with an injection (spine, deep hip, cardiac tissue) You're dealing with multiple injuries at the same time Recovery involves systemic inflammation rather than something localized BPC-157 makes more sense when: The injury is easy to inject near (knee, shoulder, elbow, ankle) Gut healing is the main goal, since BPC-157's strongest documented effects are in the GI tract You're targeting a neurological issue through a localized administration route Neither peptide has human RCT data for musculoskeletal use yet
Most clinical evidence for biotin is for oral supplementation, not topical application