Orange naturals l-theanine formula provides an impressive 250mg of pure l-theanine and 40mg of magnesium bisglycinate per capsule, these ingredients temporarily produce mental relaxation without any sedating effects. L-theanine is a non-protein amino acid that occurs naturally in the green tea plant (camellia sinensis). Studies show that l-theanine induces alpha brain-wave activity which correlates with a perceived state of relaxation. This powerful amino acid promotes a restful, relaxed state without diminishing alertness so that you can stay focused and productive.recommended use: helps to temporarily promote relaxation. Directions: adults: take 1 capsule per day. Ingredients: each capsule contains: l-theanine (derived from green tea) 250mg, magnesium (bisglycinate) 20mg.non-medicinal ingredients: vegetable-grade magnesium stearate, vegetable capsule.cautions and warnings: consult a healthcare practitioner prior to use if you are pregnant or breastfeeding.