Natural Factors PQQ-10 combines BioPQQ® and CoQ10 to help maintain and support cardiovascular health. These two cofactors play important roles in cellular signalling pathways and serve as antioxidants for the maintenance of good health. PQQ-10 is a convenient, one-per-day formula delivered in easy-to-take softgels. BioPQQ and CoQ10 are blended with non-GMO sunflower oil to provide vitamin E and enhance absorption.