B12 (Adenosyl/Hydroxy) provides 2000 ug of vitamin B12 as a blend of ‘active’ forms. Adenosylcobalamin is an activated form of vitamin B12. Hydroxycobalamin is a precursor form of vitamin B12 that is converted in the body to both methylcobalamin and adenosylcobalamin. Adenosylcobalamin and hydroxycobalamin have independent and unique biological functions. Vitamin B12 contributes to normal functioning of the nervous system and psychological function. Vitamin B12 contributes to normal energy-yielding metabolism and the reduction of tiredness and fatigue.provides a blend of ‘active’ forms of vitamin B12features 2000 ug in each vegetarian capsulecontributes to normal functioning of the nervous system and psychological functioncontributes to normal homocysteine metabolismcontributes to normal red blood cell formationcontributes to the reduction of tiredness and fatigue IngredientsHypoallergenic plant fibre (microcrystalline cellulose), adenosylcobalamin, hydroxycobalamin. Vegetarian capsule (hydroxypropyl methyl cellulose) Directions For UseAs a food supplement, take 1 capsule daily, with a meal, or as directed by your healthcare professional. PrecautionsIf you are pregnant or lactating, have any health condition or are taking any medication, consult your health professional before use. Use only if safety seal is intact. Food supplements should not be used as a substitute for a varied diet. Do not exceed the stated daily dosage. Keep out of the reach of young children.