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Description
In some rare cases, very high levels of B12 in the blood can be associated with minor side effects like mild acne, dizziness, or a temporary rash

Jenkins, C
[DOI] [PMC free article] [PubMed] [Google Scholar] 181.Kim, J
Individual Response and Tolerance Some users experience unique responses that may necessitate timing adjustments: Common Individual Variations: Energy level changes (stimulation vs
