Vitamin B12 supports the brain, nerve cells, and myelin sheaths that protect nerves. It is vital to multiple metabolic functions including enzyme production, DNA synthesis, and maintaining healthy cardiovascular and gastrointestinal systems. It supports psychological function, and can improve memory loss, poor concentration, and negative moods. Vitamin B12 plays a key role in the formation of red blood cells, by increasing hemoglobin (iron) levels in the blood, ensuring adequate oxygen is available for transport throughout the body, allowing our cells to produce energy. This product has been formulated with knowledge and care to provide a daily allowance of B12 that is useful to the body in the majority of people. Many products on the market promote extremely high amounts of B12, which the body cannot use. Excess B12 will simply be excreted from the body. B12 stores in the body and can be topped up in approximately a week, in most cases, with this level of B12 found in B12 Magnified.