Vitamin B12 (VITB12)

This assay quantifies active vitamin B12, specifically holotranscobalamin, from a standard venous blood draw. Because holotranscobalamin represents the biologically available portion of B12, the result may support clinicians in assessing whether low B12 could be contributing to fatigue, mood changes, or peripheral neuropathy. The test is suitable for adults who follow vegetarian or vegan diets, have malabsorption issues, or simply want to verify their B12 status as part of a broader health check. The price includes the mandatory phlebotomy fee, laboratory measurement of the active B12 marker, and a clear results report accompanied by a short virtual consultation to explain the implications. Results are typically available within a few business days, enabling timely discussion of supplementation if required.