Jarrow Formulas® PQQ (pyrroloquinoline quinone), is an enzyme cofactor that helps to protect mitochondria from oxidative stress and promotes the creation of new mitochondria, known as mitochondrial biogenesis.* It functions to promote the production of pyruvate, which is the first step in cellular metabolism.* PQQ is helpful for efficient metabolism to produce cellular energy.* PQQ also plays a role in supporting heart health and normal cognitive function.*