l-theanine capsules 200mg (180 count) | promotes relaxation | supports healthy stress levels + sleep cycles | promotes cognitive function + focus | amino acid supplement nootropics depot because of its ability to past the blood brain barrier, l-theanine has reported psychoactive properties. theanine has been studied for its potential ability to reduce mental and physical stress. improve cognition, and boost mood and cognitive performance. it is also reported to promote alpha wave production in the brain. pure l-theanine capsules. in-house lab tested for purity. non-gmo, gluten free, and vegan. product includes one jar of l-theanine capsules. attention: all compounds have risks. please consult your physician, and understand the available research, before consumption.