For olive leaf, the number that matters isn't the milligrams of leaf — it's the oleuropein it delivers. This **Olive Leaf Extract** gives you 167mg standardized to 18% oleuropein, about 30mg of the active polyphenol. That sits squarely in the 15–50mg oleuropein range used in the blood-pressure trials, so the standardization here is doing the real work.

The clinical evidence is moderate: olive leaf modestly lowers blood pressure in pre-hypertensive people and adds antioxidant and immune support. One capsule a day gets you to that studied oleuropein level — no need to stack servings.

The fit note: those trials ran on 500–1,000mg of total extract, so this single capsule suits everyday maintenance and mild support. If you're managing established high blood pressure, you'd likely want a higher daily dose alongside your doctor's guidance.