It is well documented that during times of stress the body requires high amounts of the B-Complex vitamins. For those individuals not using a high strength vitamin, additional supplementation with B-Complex vitamins can be important. For B-Complex supplementation, Kirkman offers "B-Complex Pro-Support". This product contains significant dosages of B vitamins including the active form of B-6, pyridoxyl 5-phosphate and the soluble form of vitamin B-2, riboflavin phosphate. Choline is also present for liver support.