Pyrroloquinoline quinone, or PQQ, is a naturally occurring compound found in small amounts in foods like kiwifruit, parsley, and fermented soybeans, and it has drawn considerable scientific interest for its role in mitochondrial biology. Research suggests that PQQ may support the growth of new mitochondria, a process known as mitochondrial biogenesis, which is fundamental to cellular energy production and healthy aging. Studies indicate that supplementation may offer benefits for cognitive function, particularly in areas like memory and attention, with some preliminary trials also pointing to improvements in sleep quality and reduced fatigue. While PQQ is not classified as an essential nutrient, its antioxidant properties and potential neuroprotective effects continue to be explored, making it an intriguing area of ongoing research in cellular health and brain function.
Compare this supplementResearch suggests that PQQ may support anti-aging processes primarily through its role in promoting mitochondrial bio...
View studies →Research suggests that PQQ may play a role in supporting mitochondrial function, though the current evidence base is ...
View studies →These are commonly referenced dosage ranges for this supplement. They are not medical recommendations. Always consult a healthcare provider before supplementing.
| Form | Dose range | Frequency | Studied for | Source |
|---|---|---|---|---|
| Capsule | 20 mg | Daily | Cognitive function and neuroprotection | Common dose in human clinical trials (e.g., Nakano et al., 2012) |
| Capsule | 20 mg | Daily | Energy and fatigue reduction | Studied in trials on fatigue and mitochondrial biogenesis support |
| Capsule | 10–20 mg | Daily | General mitochondrial function and anti-aging | Range commonly referenced across human safety and efficacy studies |
| Capsule | 20 mg | Daily | Sleep quality improvement | Used in RCTs examining sleep and fatigue outcomes |