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In contrast, when bound to transcobalamin II, the half-life is significantly shorter, approximately 1.5 hours, although the final plasma curves for both forms yield similar half-life values of around 9.3 to 9.8 days due to the rapid reappearance of the radiocobalt label bound to transcobalamin I

Nature, 583: 590-595

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It is one of the most extensively studied peptides in tissue repair, gastrointestinal health, and wound healing research

Replacement therapy for vitamin B 12 deficiency: comparison between the submingual and oral route

and Brower, D., "The PS2 Integrin Ligand Tiggrin is Required for Proper Muscle Function in Drosophila", Development 125: 1679-1687 (1998)