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If you have a vitamin B12 deficiency, you may receive injections daily or every other day to help replenish your B12 levels
Researchers can return unopened products within the guarantee period for a full refund if the compound doesnt meet their research requirements
If you're not deficient, these injections are unlikely to be the 'magic bullet' you're looking for
That's the appeal
According to the 2025 meta-analysis by Alfalasi and colleagues, sublingual B12 showed an approximate 199% mean increase in serum B12 compared to approximately 307% for intramuscular injections
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