What is Doctor’s Best High Absorption CoQ10 plus PQQ? Doctor’s Best High Absorption CoQ10 plus PQQ contains pure Coenzyme Q10 and Pyrroloquinoline Quinone, which help provide protection for the central nervous system and existing mitochondria, while also promoting the production of new mitochondria. Together, they also help protect brain cells from damage. This synergistic combination helps support cellular energy, memory, recall, and focus. CoQ10 plus PQQ is a potent pair that has been clinically shown to benefit attention span and information processing. BioPerine black pepper extract is added to enhance absorption and bioavailability.