Bioactive Vitamin B Complex, 240 Veggie Capsules - Methylated Multivitamin B Complex & Esterified Vitamin C - High Potency & Easy Absorption - Immune, Energy, & Metabolism Supplement - Non-GMO

B vitamins were first discovered in the early 20th century when scientists were researching the causes of health concerns like beriberi and pellagra. Initially, they were thought to be a single nutrie...