Science-Based NutritionDietary SupplementVegan / Non-GMO / Gluten FreeThe Superior Form of Vitamin B-12-MethylcobalaminVitamin B12 is a key factor in energy production, DNA synthesis, and a healthy nervous system. It also helps manufactured red blood cells.Your body does not make Vitamin b12, it must be consumed. Various inherited and lifestyle factors such as diet contribute to vitamin B12 deficiencies. Doctor's Best Fully Active B12 provides methylcobalamin, the superior form of vitamin B12 for optimum absorption.Helps support healthy memory, mood, circulation and well-being