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Vitamin B12 is a water-soluble vitamin that maintains nerve and brain health, while also aiding in red blood cell production (via Healthline)
Local concentration at the tendon drops to a fraction of what a direct knee injection delivers
B12 injections are generally considered safe when administered by a qualified healthcare provider
Due to its mechanistic relevance, it is often discussed alongside broader investigations into metabolic signaling, mitochondrial function, and aging-related research models
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