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Description
Some people do not absorb B12 efficiently due to age, gastrointestinal issues, or insufficient intrinsic factor, a protein required for B12 absorption

This clear designation protects both researchers and suppliers while ensuring appropriate use context for these research tools

The 50 mg lyophilized vial format is intended for extended research protocols and bulk in vitro / preclinical assay use

Madden expects that there wouldnt be any