Theogallin (3-Galloylquinic acid) is an active ingredient in decaffeinated green tea extract. Theogallin has antidepressive and cognition enhancing effect[1].
Theogallin shows a power decreasing effect on cortical activity[1]. Animal Model: Adult Fisher rats (6-months-old)[1]
[1]. Dimpfel W, et al. Theogallin and L-theanine as active ingredients in decaffeinated green tea extract: II. Characterization in the freely moving rat by means of quantitative field potential analysis. J Pharm Pharmacol. 2007 Oct;59(10):1397-403.