is sublingual b12 as effective as injections Effect of two different dosages of vitamin on cobalamin nutritional status in vegans and vegetarians with a marginal deficiency: A randomized controlled trial Vitamin B12 Injection Dose: 7
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Conclusion Your health is everything - prioritize your well-being today

Your GP or practice nurse should periodically review whether injection frequency remains appropriate and assess clinical response

Cells 8 , 187 (2019)

Results vary, but improvements in hair, skin, and nails are typically noticed over several weeks with consistent treatment
