* Compared to a tablet at the same dose in clinical testing over a time period of 6 hours. Vitetta L., Manuel R., Dal Forno S., Hall S., and Rutolo D. Route and Type of Formulation Administered Influences the Absorption and Disposition of Vitamin B12 Levels in Serum. Journal of Functional Biomaterials. 2018; 9(1): 12. Financial sponsor: Medlab Pty Ltd.