PQQ

Pyrroloquinoline quinone (PQQ) is a redox cofactor with extraordinary antioxidant cycling capacity — capable of performing 20,000 redox cycles before degrading, compared to 4 cycles for Vitamin C. Its most profound biological distinction is the ability to activate PGC-1α (peroxisome proliferator-activated receptor gamma coactivator-1 alpha) — the master regulator of mitochondrial biogenesis — increasing both the number and functional efficiency of mitochondria in cells, particularly neurons. This makes PQQ the only known dietary supplement that genuinely increases mitochondrial density rather than simply supporting existing mitochondrial function. Human trials demonstrate PQQ at 20 mg/day improves memory recall, attention, and cognitive processing speed within 12 weeks, while reducing plasma CRP and urinary oxidative stress markers.