sore arm after b12 injection Vitamin Service Possible allergic reaction to B12

Additionally, certain long-term medicationssuch as antacids or metformincan interfere with B12 absorption

Because B12 is water-soluble, the NIH Office of Dietary Supplements notes that no tolerable upper intake level has been established excess B12 is excreted by the body rather than accumulating to toxic levels

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Gene Expression: Research shows GHK-CU affects expression of over 4,000 genes, resetting many to a more youthful expression pattern

Systemic lupus erythematosus (SLE) and rheumatoid arthritis have been noted in case reports

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