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No, there are no established long-term risks in humans because sufficient long-term human studies have not been conducted
Cyanocobalamin This is the synthetic version of vitamin B12 used in supplements and in the B12 shot
Storing your own supply addresses your most important need in this situation
The cost of occasionally discarding partially-used vials is small compared to the cost of using degraded peptides that don't work
Medications Certain medications can turn urine shades of orange, red, and yellow
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