Vitamin B12 derivatives are compounds related to cobalamin, the active form of Vitamin B12. These derivatives include methylcobalamin and adenosylcobalamin, which play crucial roles in various biochemical processes in the body. They are essential for DNA synthesis, red blood cell formation, and maintaining healthy nerve cells. These derivatives are often used in dietary supplements and treatments for Vitamin B12 deficiency. While methylcobalamin is commonly found in supplements, adenosylcobalamin is primarily stored in the liver. Both forms are vital for overall health, particularly in supporting energy metabolism and neurological function.