I am a regular user of olive leaf extract for support my immune system. One of the many health benefits of Olive Leaf Extract is antiviral and bacterial so this has been one of my top listed every day guard to maintain my immune system. Thorne product of Olive Leaf Extract is high quality so I was very happy with taking this caps.
Thorn is a good solid brand, but not cheap. Olive leaf extract has so many benefits, I use it for inflammation. It also has antioxidant activity. It's good to have this at home for cold and flu season.
I am a big fan of Thorne products. I give this 3 stars due to 'batch variability'. Even though Thorne standardizes this to 18% Oleuropein, there are other phenolic components that can change, depending on many factors in the extraction process. My first batch looked like the pictures that are posted by a reviewer on this site - a rich green color. I have tried 2 other batches since then and they differ from this first batch. First, the color is more beige than green. I suspect that this could be the result of extracting leaves that are not as fresh and the chlorophyll was no longer present. The other item is the scent. The first batch with green color had a strong pleasant leafy olive odor. The scent of the beige batches were much weaker. The third item is a specific pharmacological effect. With the first batch, a single capsule lowered my blood pressure about 20 mm. With the other batches, the same effect required 2 capsules. I suspect that this is the result of a lower phenolic content with the beige-colored powder in the capsules. I hope that you found this information useful.