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more noticeable results typically require consistent use over several months

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Therefore, NASO B12 is highly effective in treating the vitamin B12 deficiency when compared with the oral treatment in type 2 diabetes mellitus patients on metformin therapy and would be a game changer in overcoming the limitations of oral and intramuscular treatment of vitamin B12

For a deeper dive into how it works, you can check out our guide on how to test for B12 deficiency at home

If the COA says '99% purity' but doesn't specify that this was determined by HPLC (or another named method), there's no way to evaluate whether the measurement is meaningful