Dietary Supplement A Vitamin B6 supplement. Pyridoxal 5-Phosphate is the active form of Vitamin B6 to provide optimal utilization.* P5P aids in the absorption of B12, and supports the immune system and brain function.* It is also required by the nervous system and is a necessary cofactor in managing homocysteine levels, to support cardiovascular health.* *This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.