Natural Factors Olive Leaf Extract has been used for centuries as a health-promoting herb. Research has demonstrated Olive Leaf to possess antioxidant and pathogen-inhibiting properties. Natural Factors Olive Leaf is standardized to contain oleuropein, the powerful phytochemical responsible for reinforcing the body's natural resistance to pathogens.

Parts used and where grown
Olive is a small evergreen tree native to Mediterranean regions. The characteristic green to blue-black fruit of this tree yields a useful, edible oil. Both the oil and the dried green-grayish colored leaves are used medicinally.

Historical or traditional use
The olive tree has been held in high esteem throughout history. Moses reportedly decreed that men who cultivated the leaf be exempt from serving in the army. The oil is symbolic of purity and goodness, while the olive branch represents peace and prosperity. Winners in the Greek Olympic games were crowned with a wreath of olive leaves. Historically, medicinal use of olive leaf has been for treatment of fevers and for the topical treatment of wounds or infection. As a poultice, it was also used by herbalists to treat skin rashes and boils.