any side effects from b12 injections

Best needle size for IM injection.... 1. 18G 2. 22G 3. 23G 4. 25G R: La literatura la describe como mínima: 12-16 week studies: sustained effectiveness Receptor-independent: lower risk of classical downregulation Optional rotation: some protocols alternate 4 weeks ON/2 OFF Q: Biomarkers to monitor effectiveness Mg:50 mg https://sc01.alicdn.com/kf/Hdcb3468f8c814e91b4a2239bba831e43e.png Metabolic Regulation

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