Natural Factors Vitamin B12 Cyanocobalamin Vitamin B12 from Natural Factors causes many health problems, including fatigue, exhaustion, digestive and nervous system problems, and its deficiency is a strong cause of immune deficiency in the body, so it is one of the necessary vitamins to take
250mcg: 1 tablet 1-4 times daily or as directed by a health practitioner.
1000mcg: 1 tablet daily or as directed by a health practitioner.
Contains no artificial preservatives, colour or sweeteners; no corn, dairy, starch, wheat or yeast.