Pyrroloquinoline quinone (PQQ) is an antioxidant that is present in many foods. In addition to being a natural anti-oxidant, PQQ is also a neuroprotectant. This is important because oxidative stress is a major cause of some illnesses and neurodegenerative diseases. It also aids in nerve growth factor production.

The dosage of PQQ in humans varies depending on the condition that is being treated. For instance, if you are treating inflammation, you might take 20 milligrams per day. However, if you are taking it to reduce cardiac injury, the dose will be much lower.

Studies have shown that pyrroloquinoline quinone is a safe drug at lower dosages. In fact, the lowest extrapolated amount of PQQ needed to support normal growth in young animals is only 0.1 to 0.15 milligrams per day.

Because of its high antioxidant properties, pyrroloquinoline quinone protects the brain from free radical damage. It does this by modifying the activity of quinoproteins in the body. These quinoproteins are responsible for cellular energy production.

Pyrroloquinoline quinone can help to decrease inflammation in the brain and promote the production of nerve growth factor. This in turn helps to strengthen memory and improve cognition.

While animal studies have provided some useful inferences, human studies need further study. Researchers have reported a variety of adverse side effects of pyrroloquinoline quinone. Some of these include headache, insomnia, hypersensitivity, and fatigue.

Many people choose to take pyrroloquinoline quinone supplements. These supplements can be purchased online and in physical stores.