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Altern Med Rev.2002,7(5)389
Never purchase B12 injections from unregulated sources or self-administer without proper medical supervision and diagnosis
Distributed under the brand names Geref and Geref Diagnostic, it gained FDA approval in 1997 as a treatment for growth hormone deficiency but was discontinued in 2008 not out of concern for safety or lack of efficacy, but because of manufacturing difficulties.2 3 Yet it remains available in compounded form with a prescription from a licensed healthcare provider
For microdosing, the 2ml reconstitution is clearly superior
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