The herb ginkgo is a widely used prescription medicine in Europe relating to the circulatory system. It supports circulation to the brain with its benefits likely related to its antioxidant constituent, flavone glycosides.* Most experts recommend 60 mg of extract (standardized to 24% flavone glycosides) taken twice daily or take 120 mg once daily. We recommend Lindberg Ginkgo Extract .
This nutrient is highly concentrated in the brain. Studies show it's most helpful in supporting memory, concentration and learning. In one study involving name-face recognition, it rolled back the clock up to 12 years - individuals went from a "cognitive age" of 64 to 52.* Typical doses are 200-300 mg a day. Take for 3 months to see if you get results. An excellent choice is Lindberg Phosphatidylserine 100 mg or Phosphatidylserine Soy Free 100 mg . If it doesn't work, existing circulating levels are probably adequate.
Here's another amino acid-like substance that has been widely studied for effects on brain function and memory in the young and old. Young people showed improvements in attention span, hand-eye coordination and reflexes using video game style testing devices. In older people, results were equally compelling.* These studies used 1,500 mg a day. One of our best sellers is Lindberg Acetyl L-Carnitine .