Test products. Capsules with pure L-theanine (Suntheanine) were purchased from Taiyo Europe. According to the manufacturers, each capsule provided 100 mg L-theanine, which concurs the results of own investigations (Table 1).
Test products. Capsules with pure L-theanine (Suntheanine) werepurchased from Taiyo Europe. According to the manufacturers, eachcapsule provided 100 mg L-theanine, which concurs the results of owninvestigations (Table 1).