red urine after b12 injection Vitamin B12: discolouration could mean you're talking too many supplements Why Your Pee Turns Bright
Description
The only way to address high B12 is to identify and treat the underlying cause or to stop the exogenous source
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Assay Testing Assay testing verifies peptide content, concentration, and label accuracy for finished formulations such as capsules and sprays

Presse Medicale 2012;41:8958

I just received my 2nd bottle

For subcutaneous injection, doses of 250-500 mcg per day are commonly used