I bought this after researching natural herbs to treat high blood pressure. Mine had slowly been creeping up after I hit Menopause and I did not want to go on BP meds. After changing my diet, losing weight and exercising, my BP still ranged from 140 to 150/90. Definitely mild hypertension. I bought Now Olive leaf and have been taking it for 8 weeks. I just took my BP (it was at 530pm) and I got 114/63 This stuff is a Godsend! My doctor will be very pleased. I'm also giving it to my husband whose BP is a little high. I will measure his soon to see if it helps