Results: Six (6) studies met the final inclusion criteria and were included in review. Trials were all conducted
over 12 weeks. Across trials, three different Bacopa extracts were used at dosages of 300–450mg extract per day.
All reviewed trials examined the effects of Bacopa on memory, while other cognitive domains were less well
studied. There were no cognitive tests in the areas of auditory perceptual abilities or idea production and only a
paucity of research in the domains of reasoning, number facility, and language behavior. Across studies, Bacopa
improved performance on 9 of 17 tests in the domain of memory free recall. There was little evidence of
enhancement in any other cognitive domains.