OL - Olive Leaf Extract 500 mg - 60 CapsulesDESCRIPTION Olive Leaf Extract contains the active phenolic compound known as oleuropein, known in complimentary medicine as an effective, natural healer. Oleuropein (pronounced oh lee or oh pin) is a bitter substance that scientists have isolated from the olive leaf. It was found to be part of a compound produced by olive trees that make them particularly vigorous and resistant to insect and bacterial damage. Oleuropeins antimicrobial action begins