Pay in 4 interest-free payments of $6.39 Learn more
Ships within 48 hours · Estimated delivery Sep 22 - Sep 27
We have also seen internet sites where you can purchase B12
Last reviewed: May 28, 2026 Last updated: May 28, 2026 Written by: Jay Hastings, CEO of PlexusDx Jay Hastings is the CEO of PlexusDx, a precision health company focused on genetic testing, blood biomarker insights, and personalized wellness recommendations
Overcoming Malabsorption: For conditions like pernicious anaemia, where the body cannot absorb B12 orally due to a lack of intrinsic factor, injections are the only effective treatment route
Continue with lifelong intramuscular injections, even if symptoms have improved or are no longer present 1 Frequency The frequency of injections varies from country to country
Fragment 176-191 format Lyophilized research-grade powder Secure sealed vial Laboratory research only Independently verified by Freedom Diagnostics via HPLC and mass spec
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