Natural Support for the Body's Defense System. Standardized Potency. Herbal Dietary Supplement. Olive leaf 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.
"I noticed another reviewer said this particular ingredient list was the best because it has 15% Oleuropein in it, but actually this one only has 10%. The Natural Factors Olive Leaf Extract that does have 15% Oleuropein is the other one displayed w/ 60 capsules whereas this is 90 caps. I do agree also this brand is great but we prefer the one with 15% Oleuropein also, which we feel is better. GREAT PRODUCT! I just wish Vitacost would carry it in stock instead of 7-14 days. Unless customers are able to make the distinction that one has 10% and one has 15%, they just think one is 90 caps and one is 60 caps."