Research shows oleuropein, the main component in olive leaf extract, has antioxidant, antibacterial, antimicrobial, anti-inflammatory, and immune-stimulating properties.
Historically, olive leaf extract has been used for the prevention or treatment of inflammation, infections, e.g., the common cold, influenza, Candidiasis, among other things.
Some people find alternating olive leaf with oregano oil and grape seed oil can bring good results.
We like Kroeger Herbs because they are a small company in Boulder and were started by Hanna Kroeger in 1957. She was an intuitive, something like Maria Treben. Back in the early 90's, or was it the late 80's? Who knows. I found out about her. I followed the instructions given to me. I put my saliva on a cotton ball and inserted it in a zip lock bag and mailed it off. Hanna go back to me fairly quickly and told me what I needed. She was spot on. I was impressed. We carry other products of hers because she recognized their value. So do we.
She made the transition in 1998, but left a legacy.