Best Olive Leaf Supplements for Cardiovascular Health of 2026

Swanson Olive Leaf Extract Capsules are a powerful formula sourced from olive tree leaves. Each capsule contains 500mg of olive leaf extract powder standardized to include 20% oleuropein for health and wellness support. This supplement helps boost the body's natural defenses, supports over-all health, promotes cardiovascular system health, and supports healthy blood pressure. It is recommended to take one capsule twice a day with food and water.

NOW Supplements, Olive Leaf Extract 500 mg is a standardized extract manufactured under strict quality control conditions and is standardized to a minimum of 6% Oleuropein. It has been an integral part of Mediterranean and Middle Eastern cultures for millennia and is known for its free radical scavenging power. It is GMP Quality Assured and is packaged in the USA by a family owned and operated company since 1968.

Healths Harmony Olive Leaf Extract is a non-GMO, vegetarian supplement that provides a range of health benefits. It contains 750mg of Olive Leaf Extract with 20% Oleuropein, the most potent component of olive, and is responsibly sourced from non-GMO trees. It is a premium immune support supplement and is manufactured in the USA at a cGMP certified facility. Customers have reported positive results such as improved cardiovascular health, immune support, and reduced inflammation.

Total Olive® is a max strength olive leaf and fruit extract supplement, made from true Mediterranean olives grown in southern Spain. It contains a minimum 40% concentration of the “powerhouse” polyphenol Oleuropein, and 20% concentration of the potent antioxidant Hydroxytyrosol. It also includes BioPerine absorption enhancement, and provides more polyphenols than ⅔ liter of premium European olive oil without the calories. Customers report improved energy, immune system, and brain health.

Gaia Herbs Olive Leaf Extract is a traditional immune health supplement that supports overall wellness. Formulated with olive leaf extract and oleuropein, this vegan liquid phyto-capsule is designed to help sustain your body when faced with immune challenges. Customers have reported positive results with blood pressure and cholesterol, as well as relief from allergies, ulcerative colitis, and respiratory issues.

Island Nutrition Olive Leaf Extract Capsules contain 25% oleuropein and 40% total olive polyphenols, with a super-strength of 500mg per capsule. It also has a 20% hydroxytyrosol complex that supports healthy blood pressure, cardiovascular health, immunity, and Mediterranean diet benefits. The supplement is 100% grown and extracted in Spain from true Mediterranean olive trees and is harvested on family-run Spanish olive farms using traditional extraction methods.

Vimergy Organic Olive Leaf Extract is a potent liquid formula that supports your immune and cardiovascular health. With 200mg of organic olive leaf extract in each serving, this product is equivalent to 2000mg of the herb. This concentrated liquid extract is made with USDA organic olive leaf and contains no artificial or natural flavors, gluten, corn or soy. It is also vegan, non-GMO, paleo-friendly, and alcohol-free. You can take it directly in the mouth or add it to water, juice, or smoothie.

These olive leaf extract capsules are made with organic olive leaf, active polyphenols, and oleuropein to provide maximum strength of 750mg per serving. They are rich in natural flavonoids and polyphenols and support energy, heart, and blood health. The capsules are non-GMO, gluten-free, dairy-free, sugar-free, soy-free, and tree nut-free. Additionally, they are third-party lab tested for high quality and made in California.