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Olive leaf extract supplements offer a natural way to support overall well-being, known for their antioxidant properties. With numerous options available, selecting a high-quality product is crucial for experiencing its full benefits. This guide will help you navigate the key factors to consider when purchasing olive leaf herbal supplements.
STANDARDIZED TO 6% OLEUROPEIN: NOW Olive Leaf Extract is manufactured under strict quality control conditions and is standardized to a minimum of 6% Oleuropein
HISTORICAL USE: The olive tree has been an integral part of Mediterranean and Middle Eastern cultures for millennia
FREE RADICAL SCAVENGING POWER*: Olive leaves have the highest free radical scavenging power among the different parts of the olive tree*
GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation)
Founded in 1968 by Elwood Richard, NOW is one of the largest independent, family- and employee-owned manufacturers of natural products
Easy to swallow 480 total capsules, 8-month supply with 240 servings, 2 capsule serving size.
Each serving provides a 600mg dose.
Retains naturally occurring flavonoids, polyphenols, and antioxidants to support energy, heart, internal circulation, complexion, and immune health.*
Authentic non-GMO olive leaf supplement. Contains pure ingredients free of wheat, soy, dairy, gluten, preservatives, and fish/shellfish. All products are also 3rd party lab tested for safety and potency.
150 CAPSULES / OUTSTANDING VALUE: Our Extra Strength Olive Leaf Extract is standardized to 40% Oleuropein AND contains 150 capsules per bottle – an amazing value! A single bottle contains a 5 month supply. Compare this to other leading brands that...
POTENT 50:1 EXTRACT: Our Olive Leaf Extract is derived from a standardized, concentrated, potent 50:1 extract, which is 50X stronger than regular olive leaf powder. A stronger extraction ratio means a stronger, more potent product!
40% OLEUROPEIN: Oleuropein is the “good stuff”, the beneficial compound in Olive Leaf that provides the desired results. Our Olive Leaf Extract has been standardized to contain a minimum of 40% Oleuropein, which is one of the highest standardization...
NATURAL, VEGAN & NON-GMO: All ingredients, including the capsule, are 100% vegan. Our Extra Strength Olive Leaf Extract does not contain any sweeteners, artificial flavors, wheat, corn, gluten, soy, milk, egg, fish, shellfish, or tree nut ingredients...
GOLD STANDARD PRODUCTION: Your health and safety mean everything to us. For that reason, our Extra Strength Olive Leaf Extract is manufactured in the USA, in a fully certified facility with adherence to good manufacturing policies and under the most...
40% POLYPHENOLS — Super-strength 500mg Per Capsule (not “per serving”) of olive leaf extract. All 500mg is standardized to at least 25% pure oleuropein and 40% total olive polyphenols.
20% HYDROXYTYROSOL COMPLEX — 50mg standardized for other active polyphenols found in extra virgin olive oil, such as Hydroxytyrosol and Tyrosol.
AUTHENTIC — Made from true Mediterranean olive trees (Olea Europaea), 100% grown and extracted in Spain. Almost every other supplement brand uses cheap Chinese olive leaf, often from the wrong plant or mislabeled as made in USA or made in Spain.
SUPER-STRENGTH — As much natural polyphenol per capsule as 1/3 liter extra virgin olive oil. Supports health benefits of the Mediterranean diet.
PREMIUM SOURCE — Harvested on family-run Spanish olive farms. Processed in Spain using traditional extraction (no chemicals). Made by Island Nutrition, maker of premium supplements since 1995.
Overall Support: Each serving of Wild & Organic olive leaf tincture contains 500 mg of pure olive leaf extract to support overall well-being.
Natural Formula: Our oleuropein supplement is made with only vegan ingredients, free from GMOs, and contains no artificial additives.
Alcohol-Free: Wild & Organic olive leaf extract liquid is vegetable glycerin-based, providing an alcohol-free tincture that is easy on digestion.
Sweetness Without Sugar: Enjoy a pleasant supplement experience with Wild & Organic olive extract, which features a naturally sweet taste. Our olive leaf supplement uses glycerin for natural sweetness, with no added sugar.
84-Day Supply: Each 4 fl. oz. bottle of Wild & Organic oleuropein olive leaf extract drops contains 168 servings per bottle, providing an 84-day supply when taken two times per day.
Does this support overall wellness? Yes — Swanson Olive Leaf Extract is a high-quality herbal supplement that supports your overall wellness with concentrated olive leaf benefits.*
Does this support the immune system? Yes — this dietary supplement provides natural immune system support for year-round defense.*
Does this support heart health? Yes — the antioxidant properties of olive may also support heart health and blood pressure already in a healthy range.*
How concentrated is this formula? Our immune health supplement is standardized to 20% oleuropein to offer consistent potency in every capsule.
Can I trust the quality of this supplement? Swanson is a name you can rely on — our products are manufactured to the highest standards, ensuring you get trusted quality, every time.
Immune Support Supplement: Olive leaf is traditionally used to support a healthy immune response*
Wellness Support Supplement: This concentrated, single-herb extract provides short-term immune support for all seasons*
Olive Leaf Supplement: We use freshly harvested Olive Leaf from co-op partner farms in southern Spain, whose trees are over 200 years old and don't require irrigation or even inputs like organic fertilizers
Our Commitment to Quality: We thoughtfully source high-quality ingredients from around the world, guided by integrity and a deep respect for people, plants, and the planet
About Gaia Herbs: For over 35 years, Gaia Herbs has helped people live healthier, more balanced lives by formulating products based on traditional herbal approaches while seeking support from modern science. We carefully oversee every step from soil to...
Immune Support Supplement: Olive leaf is traditionally used to support a healthy immune response*
Wellness Support Supplement: This concentrated, single-herb extract provides short-term immune support for all seasons*
Olive Leaf Supplement: We use freshly harvested Olive Leaf from co-op partner farms in southern Spain, whose trees are over 200 years old and dont require irrigation or even inputs like organic fertilizers
Our Commitment to Quality: We thoughtfully source high-quality ingredients from around the world, guided by integrity and a deep respect for people, plants, and the planet
About Gaia Herbs: For over 35 years, Gaia Herbs has helped people live healthier, more balanced lives by formulating products based on traditional herbal approaches while seeking support from modern science. We carefully oversee every step from soil to...
Adults take 3 capsules daily", "Gluten free and vegan. No wheat, corn, soy, dairy, gelatin, or artificial colors or flavors. Non-GMO Project Verified.
At Nature’s Way, we believe nature is the ultimate problem solver. For over 50 years, we have looked to the natural world for inspiration. Our quality vitamins and supplements are formulated to help you find your way to wellness.
Last update on 2026-07-19 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Olive Leaf Herbal Supplements
What to Look For in Olive Leaf Supplements
Standardization: Look for supplements standardized to a specific percentage of oleuropein, the key active compound. A common and effective standardization is 18-20% oleuropein. This ensures consistent potency and effectiveness from dose to dose.
Form: Olive leaf extract is available in capsules, tablets, and liquid tinctures. Capsules and tablets are convenient for travel and daily use. Liquid extracts can be faster-acting and allow for easier dosage adjustments, but may have a stronger taste.
Source and Purity: Choose brands that use high-quality, sustainably sourced olives and employ rigorous testing for purity and contaminants. Look for certifications like third-party testing or GMP (Good Manufacturing Practices) to ensure product integrity.
Potential Benefits and Uses
Olive leaf extract is primarily recognized for its potent antioxidant properties, which help combat oxidative stress in the body.
It has been traditionally used to support immune function and cardiovascular health. Some research also suggests it may play a role in maintaining healthy blood sugar levels.
Dosage and Usage
Dosage recommendations can vary based on the concentration of oleuropein and the specific product formulation. Always follow the manufacturer's suggested serving size unless otherwise directed by a healthcare professional.
It is generally recommended to take olive leaf extract with food to enhance absorption and minimize potential digestive upset.
Frequently Asked Questions
What is oleuropein?
Oleuropein is the main active compound found in olive leaves, responsible for many of its beneficial properties. It is a powerful antioxidant and has been studied for its immune-supporting and cardiovascular benefits.
How long does it take to see results from olive leaf extract?
The time it takes to notice effects can vary from person to person and depends on the dosage and individual health goals. Some individuals may feel benefits within a few weeks, while others might require a longer period of consistent use.
Are there any side effects of olive leaf extract?
Olive leaf extract is generally considered safe for most people when taken as directed. Some individuals may experience mild digestive upset, such as nausea or stomach discomfort, especially when first starting.
Can I take olive leaf extract with other supplements?
It is generally safe to combine olive leaf extract with other vitamins and supplements. However, it's always best to consult with a healthcare professional before starting any new supplement regimen, especially if you have pre-existing health conditions or are taking medications.
What is the best time of day to take olive leaf extract?
Many people find it beneficial to take olive leaf extract with meals, as this can help improve absorption and reduce the likelihood of digestive upset. Consistency in timing each day is often more important than the specific time.
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