AOR Oleuropein Olive Leaf Extract 400mg - Antioxidant Support | 60 Caps
Visit the AOR Store| Brand | AOR |
| Serving | 1 Capsule (400 mg), twice daily |
| Licensed Natural Health Product | NPN 80021708 |
| Quality Standards | GMP-compliant facility |
| Country | Made in Canada  |
About this item
- RICH IN ANTIOXIDANT POLYPHENOLS: AOR Olive Leaf Extract contains numerous flavonoids and antioxidants for the maintenance of good health - its licensed Health Canada use.
- STANDARDIZED TO 20% OLEUROPEIN: Each 400 mg capsule delivers Olive Leaf (Olea europaea L.) extract standardized to not less than 20% oleuropein, olive leaf's signature antioxidant polyphenol.
- SUPPORTS DAILY WELLNESS: A traditional Mediterranean botanical studied for its role in cellular antioxidant defense, immune health, and circulatory wellness as part of a healthy daily routine.
- SIMPLE TWICE-DAILY CAPSULES: Take 1 capsule twice daily, with or without food - 60 vegan capsules provide up to a 30-day supply.
- VEGAN, NON-GMO, GLUTEN-FREE: Clean-label vegan capsules with no gluten or GMO ingredients, and only two non-medicinal ingredients.
- A MEDITERRANEAN BOTANICAL TRADITION: Olea europaea leaves have a long history of traditional use around the Mediterranean, now studied for their polyphenol content.
- PREMIUM CANADIAN QUALITY: Made in Canada by AOR - Advanced Orthomolecular Research - since 1991, to GMP standards. Licensed under Health Canada NPN 80021708.
- 60 CAPSULES - UP TO A 30-DAY SUPPLY: At 1 capsule twice daily (2 capsules per day), one bottle lasts up to 30 days.
Product Description
Olive Leaf Extract - Standardized Mediterranean Antioxidant
Olea europaea (olive) leaves have a long history of traditional use around the Mediterranean. AOR's Olive Leaf Extract is standardized to not less than 20% oleuropein - olive leaf's signature polyphenol - delivering 400 mg of extract in every capsule, taken twice a day. Licensed Natural Health Product; contains numerous flavonoids and antioxidants for the maintenance of good health. Licensed Natural Health Product NPN 80021708.
Les feuilles d'Olea europaea (olivier) ont une longue histoire d'utilisation traditionnelle dans le bassin méditerranéen. L'extrait de feuille d'olive d'AOR est normalisé pour contenir au moins 20 % d'oléuropéine - le polyphénol signature de la feuille d'olive - à raison de 400 mg d'extrait par capsule, prise deux fois par jour. Produit de santé naturel homologué; contient de nombreux flavonoïdes et antioxydants pour le maintien d'une bonne santé. NPN 80021708.
Standardized Olive Leaf Extract
60 vegan capsules - a traditional Mediterranean botanical, standardized to 20% oleuropein
Standardized to 20% Oleuropein
Each capsule delivers 400 mg of Olive Leaf (Olea europaea L.) extract standardized to not less than 20% oleuropein, so every capsule provides a consistent, guaranteed level of olive leaf's signature antioxidant polyphenol.
Simple Twice-Daily Capsules
One capsule, twice daily, with or without food - a traditional Mediterranean botanical in a modern, convenient, vegan capsule.
What Olive Leaf Research Explores
Olive leaf's polyphenols, especially oleuropein, are a widely researched area of Mediterranean-diet science - here's what the research explores.
Antioxidant Support
Olive Leaf Extract contains numerous flavonoids and antioxidants for the maintenance of good health - AOR's own licensed Health Canada use.
Cardiovascular Wellness Research
Oleuropein and olive leaf polyphenols are a widely studied area of cardiovascular and blood-pressure research.
Immune Function Research
Olive leaf's polyphenol content is an active area of general immune-health research.
Traditional Mediterranean Botanical
Olea europaea leaves have been used traditionally around the Mediterranean for generations.
AOR Oleuropein Olive Leaf: Supplement Facts
Each capsule contains:
- Olive Leaf (Olea europaea L.) extract standardized to > 20% oleuropein400 mg
Non-Medicinal Ingredients: Microcrystalline cellulose, sodium stearyl fumarate. Capsule: hypromellose.
Recommended Use or Purpose: Olive Leaf extract contains numerous flavonoids and antioxidants for the maintenance of good health. Licensed Natural Health Product, NPN 80021708.
Recommended Dose (Adults 18 years and older): Take 1 capsule twice daily, with or without food, or as directed by a qualified health care practitioner. Do not exceed the daily dose unless instructed by a health care practitioner.
Cautions and Warnings: Do not use if you are pregnant or breastfeeding. Consult a health care practitioner if you have high or low blood pressure, or for use beyond eight weeks. Herbal extracts will naturally vary in colour from one batch to another. Do not use if the safety seal is broken. Store tightly sealed in a cool, dry place.
Actual product packaging and materials may contain more and different information than what is shown on our website. We recommend that you do not rely solely on the information presented and that you always read labels, warnings, and directions before using or consuming a product.
Chaque capsule contient :
- Extrait de feuille d'olivier (Olea europaea L.) normalisé pour contenir > 20 % d'oléuropéine400 mg
Ingrédients non médicinaux : Cellulose microcristalline, stéarylfumarate de sodium. Capsule : hypromellose.
Usage ou fins recommandés : L'extrait de feuille d'olivier contient de nombreux flavonoïdes et antioxydants pour le maintien d'une bonne santé. Produit de santé naturel homologué, NPN 80021708.
Dose recommandée (adultes de 18 ans et plus) : Prendre 1 capsule deux fois par jour, avec ou sans nourriture, ou selon les recommandations d'un professionnel de la santé qualifié. Ne pas dépasser la dose quotidienne, sauf indication contraire d'un professionnel de la santé.
Mises en garde : Ne pas utiliser si vous êtes enceinte ou si vous allaitez. Consulter un professionnel de la santé si vous souffrez d'hypertension ou d'hypotension, ou pour un usage au-delà de huit semaines. La couleur des extraits de plantes varie naturellement d'un lot à l'autre. Ne pas utiliser si le sceau de sécurité est brisé. Conserver hermétiquement fermé dans un endroit frais et sec.
NPN 80021708
Add AOR Olive Leaf Extract to your daily routine
Get AOR Olive Leaf Extract on Amazon.ca - fast, protected delivery.
Get it on Amazon.caWhy AOR Olive Leaf Extract
A standardized, single-ingredient olive leaf extract from a trusted Canadian brand.
Single-ingredient purity
Just Olive Leaf (Olea europaea L.) extract, standardized to 20% oleuropein - no proprietary blends.
Licensed antioxidant use
Contains numerous flavonoids and antioxidants for the maintenance of good health - Health Canada NPN 80021708.
A Mediterranean tradition
Olea europaea leaves have a long history of traditional use across the Mediterranean region.
Premium Canadian brand
AOR - Advanced Orthomolecular Research, since 1991. NPN 80021708.
How to use it
Take 1 capsule, twice daily
Adults 18 years and older: take 1 capsule twice daily, with or without food, or as directed by a qualified health care practitioner.
Morning and evening
With or without food - two consistent times a day works best, for example morning and evening.
Check in before extended use
Consult a health care practitioner if you have high or low blood pressure, or before using beyond eight weeks.
What the research says about olive leaf and oleuropein
Peer-reviewed studies on olive leaf extract and its key polyphenol, oleuropein - shared for education, not as claims about this finished product. AOR Oleuropein Olive Leaf Extract's authorized use under NPN 80021708 is: olive leaf extract contains numerous flavonoids and antioxidants for the maintenance of good health.
Large multicenter trial in treated hypertension
In a 621-participant, double-blind, placebo-controlled multicenter trial, oral olive leaf extract was evaluated over 12 weeks for its effect on 24-hour systolic and diastolic blood pressure in patients being treated for hypertension.
Human RCTOlive leaf extract plus potassium in mild hypertension
In a double-blind, placebo-controlled trial, 70 adults with untreated mild-to-moderate hypertension took a combination of olive leaf extract and potassium, evaluated for effects on blood pressure and cardiometabolic markers.
Human RCTMeta-analysis across pre-hypertensive and hypertensive adults
Pooling randomized trials of Olea europaea leaf extract in adults with pre-hypertension or hypertension, this systematic review and meta-analysis evaluated the overall impact on blood pressure readings.
Meta-analysisGene-expression signals in a human supplementation trial
In a double-blind, placebo-controlled human trial, olive leaf extract supplementation shifted gene-expression profiles in peripheral blood immune cells, an early step toward understanding its biological mode of action.
Human RCTCalming an allergic-inflammation trigger
Laboratory research found olive leaf extract reduced activation of mast cells, the immune cells at the center of allergic inflammation, suggesting a possible mechanism behind traditional interest in olive leaf for immune balance.
Laboratory studyImmune and gut-microbiota effects in diet-induced obesity
In mice with diet-induced obesity, a chemically characterized olive leaf extract improved vascular function and favorably shifted gut microbiota, alongside immunomodulatory effects linked to its polyphenol content.
Animal studyMapping oleuropein's antioxidant pathways
A comprehensive 2026 review traced oleuropein's antioxidant and anti-inflammatory activity to specific molecular pathways, positioning it as one of the most-studied polyphenols found in olive leaf extract.
ReviewSupporting cellular energy production
In cell culture, oleuropein and hydroxytyrosol - olive leaf's two signature polyphenols - enhanced mitochondrial function and the cell's own antioxidant machinery through estrogen-receptor-linked signaling.
MechanismAntioxidant, anti-inflammatory signaling in skin cells
In human skin-cell models, olive leaf extract calmed inflammatory signaling and reduced markers of oxidative stress via the AKT/ERK and SREBP-1/PPAR-gamma pathways.
Laboratory studyImproved insulin sensitivity in a crossover trial
In a randomized, placebo-controlled crossover trial, 46 overweight middle-aged men taking daily olive leaf polyphenols (51.1 mg oleuropein, 9.7 mg hydroxytyrosol) showed a 15% improvement in insulin sensitivity and better pancreatic beta-cell responsiveness versus placebo.
Human RCTAdded to a weight-loss diet in obese women
In an 8-week randomized trial, adding olive leaf extract to a calorie-restricted diet was evaluated for its effect on body weight, fat mass, and glycemic indices in women with obesity, versus a standard weight-loss diet alone.
Human RCTInsulin resistance and blood pressure together in aging rats
In aged rats, an olive leaf extract blend attenuated age-related insulin resistance, high blood pressure, and muscle loss (sarcopenia) together, consistent with the ingredient's broader cardiometabolic research profile.
Animal studyA laboratory basis for the blood-pressure caution
Laboratory research on a related wild olive leaf extract found it altered intestinal absorption of two antihypertensive drugs (propranolol and diltiazem) in a human intestinal-cell model - a plausible mechanism supporting the product label's caution to consult a health care practitioner if you have high or low blood pressure.
Laboratory studyA pilot safety and efficacy trial in type 2 diabetes
A pilot randomized, placebo-controlled trial evaluated both the safety and glycaemic-control effects of olive leaf extract in adults with type 2 diabetes, part of the broader human safety record for the ingredient.
Pilot clinical trialLiver-enzyme monitoring alongside an antioxidant benefit
In a randomized, placebo-controlled trial in women with obesity, olive leaf extract lowered a marker of oxidative stress with no adverse change in liver enzymes over 8 weeks, part of the ingredient's monitored human safety profile.
Human RCTComparing extraction methods for antioxidant yield
This study compared pressurized-liquid and ultrasound-assisted extraction using green solvents, evaluating which method best preserved olive leaf's antioxidant and blood-sugar-related enzyme-inhibiting compounds.
Laboratory analysisComparing delivery formats for stability
Comparing three liposomal carrier systems, this study measured which formulation best preserved olive leaf extract's antioxidant capacity and physical stability over time.
Laboratory analysisOlive leaf compared alongside other antioxidant botanicals
Comparing olive leaf, bay laurel, and rosemary leaf powders, this study measured antioxidant synergy in vitro, then confirmed benefits to blood oxidative status in a live-animal feeding trial.
Animal studyMapping 300+ compounds across the olive plant
This 2026 review catalogued more than 300 distinct metabolites identified across olive leaves, fruit, oil, and other plant parts, organizing them into 15 chemical classes to guide future research.
ReviewIdentifying a new olive-leaf compound
Researchers isolated and chemically synthesized 2'-hydroxyoleacein, a previously uncharacterized compound related to oleuropein found in olive leaves, and evaluated its anti-inflammatory activity.
Laboratory analysis49 phytochemicals across 12 olive cultivars
Analyzing leaf extracts from 12 different olive cultivars by HPLC and mass spectrometry, researchers identified 49 distinct phytochemicals, mapping how the phenolic profile - including oleuropein - varies by variety and season.
Laboratory analysisTracking absorption after a real dose
In nine healthy volunteers given a single dose of olive leaf extract, researchers measured how much oleuropein and hydroxytyrosol was actually absorbed and how the body metabolized them, mapping the extract's real-world bioavailability.
Human studyWhat gut bacteria do with unabsorbed polyphenols
Using a human fecal-microbiota model, this study traced how gut bacteria further metabolize oleuropein and related olive polyphenols that pass through the small intestine, a step in understanding their full bioavailability.
Laboratory analysisBioavailability of olive leaf's sister compound
This human trial measured oral bioavailability of hydroxytyrosol - the metabolite oleuropein converts into in the body - from food-supplement sources, addressing the low, variable absorption that has long challenged olive-polyphenol research.
Human RCTFrequently asked questions
What is AOR Olive Leaf Extract used for?
AOR Olive Leaf Extract is a licensed Natural Health Product (NPN 80021708). Its recommended use is: olive leaf extract contains numerous flavonoids and antioxidants for the maintenance of good health.
How do I take it?
Adults 18 years and older: take 1 capsule twice daily, with or without food, or as directed by a qualified health care practitioner. Do not exceed the daily dose unless instructed by a health care practitioner.
What is oleuropein, and how much is in each capsule?
Oleuropein is olive leaf's signature antioxidant polyphenol. Each capsule provides 400 mg of Olive Leaf (Olea europaea L.) extract standardized to contain not less than 20% oleuropein.
Who should check with a health care practitioner before using it?
Consult a health care practitioner before use if you have high or low blood pressure, or if you plan to use it beyond eight weeks. Do not use if you are pregnant or breastfeeding.
Does olive leaf extract interact with blood pressure medication?
Olive leaf extract itself has been studied for mild blood-pressure-lowering activity, which is why the label advises consulting a health care practitioner if you have high or low blood pressure before use. If you take blood-pressure medication, mention this supplement to your health care practitioner before starting it.
Is it vegan and gluten-free?
Yes - the capsules are vegan, non-GMO and gluten-free, with only two non-medicinal ingredients: microcrystalline cellulose and sodium stearyl fumarate, in a hypromellose capsule.
How long does one bottle last?
60 capsules is up to a 30-day supply at 1 capsule twice daily (2 capsules per day).
Is olive leaf extract the same as olive oil?
No. This product is made from Olea europaea LEAF extract, standardized for its oleuropein polyphenol content - a different part of the olive tree, and a different nutrient profile, than olive oil, which comes from the fruit.
Add AOR Olive Leaf Extract to your daily routine
Get AOR Olive Leaf Extract on Amazon.ca - fast, protected delivery.
Get it on Amazon.caNatural Health Product NPN 80021708. Olive Leaf extract contains numerous flavonoids and antioxidants for the maintenance of good health. The research summaries below concern olive leaf and oleuropein generally and are educational; they are not claims about this finished product beyond its own licensed use. Read and follow the label. Consult a health care practitioner before use if you have high or low blood pressure, or for use beyond eight weeks. Do not use if you are pregnant or breastfeeding. AOR is the manufacturer; sold by Canadian Health & Care on Amazon.ca. Results may vary.
Important information
Safety Information
Cautions and Warnings: Do not use if you are pregnant or breastfeeding. Consult a health care practitioner if you have high or low blood pressure, or for use beyond eight weeks. Herbal extracts will naturally vary in colour from one batch to another. Do not use if the safety seal is broken. Store tightly sealed in a cool, dry place.
Indications
Recommended Use or Purpose: Olive Leaf extract contains numerous flavonoids and antioxidants for the maintenance of good health. Licensed Natural Health Product, NPN 80021708.
Ingredients
Medicinal Ingredient (per capsule): Olive Leaf (Olea europaea L.) leaf extract, standardized to contain not less than 20% oleuropein - 400 mg. Non-medicinal ingredients: microcrystalline cellulose, sodium stearyl fumarate. Capsule: hypromellose.
Directions
Recommended Dose (Adults 18 years and older): Take 1 capsule twice daily, with or without food, or as directed by a qualified health care practitioner. Do not exceed the daily dose unless instructed by a health care practitioner.
Legal Disclaimer
Actual product packaging and materials may contain more and different information than what is shown on our website. We recommend that you do not rely solely on the information presented and that you always read labels, warnings, and directions before using or consuming a product.