Benefits
Cardiovascular Health Support
Olive polyphenols have established cardiovascular benefits — endothelial function, lipid markers, oxidative stress reduction. Mediterranean diet's cardiovascular benefits are partly attributed to olive polyphenol intake.
EFSA-Approved Health Claim — LDL Oxidation Protection
EU EFSA approved health claim: olive oil polyphenols (5 mg hydroxytyrosol + derivatives daily) protect LDL particles from oxidative damage. Foundation regulatory positioning.
Antioxidant Activity (Hydroxytyrosol)
HYDROXYTYROSOL is among most potent natural antioxidants — even more potent than vitamin C in some assays. Direct radical scavenging plus regeneration of other antioxidants.
Endothelial Function Support
Olive polyphenols support endothelial nitric oxide production and vascular function.
Olive Fruit vs Leaf Distinction
Distinct from olive leaf extracts (different polyphenol profile); fruit polyphenols closer to extra virgin olive oil composition.
Mechanism of action
Hydroxytyrosol Antioxidant Activity
HYDROXYTYROSOL is the most potent olive polyphenol antioxidant; directly scavenges free radicals; protects LDL from oxidation; supports endogenous antioxidant systems.
LDL Oxidation Protection
Oxidized LDL is critical in atherosclerosis pathogenesis; hydroxytyrosol protects LDL from oxidation — mechanism for cardiovascular benefits.
Endothelial NO Support
Olive polyphenols support endothelial nitric oxide production — vasodilation and vascular function.
Anti-Inflammatory NF-κB Pathway
Olive compounds inhibit NF-κB inflammatory signaling.
Clinical trials
Major RCT of olive oil polyphenols on LDL oxidation and cardiovascular markers. Foundation for EFSA health claim.
Adults across multiple European centers.
Significant LDL oxidation protection; cardiovascular marker improvements. Foundation for EFSA-approved health claim.
Indena studies of Opextan for cardiovascular and antioxidant applications.
Adults with cardiovascular concerns.
Improvements in oxidative stress and cardiovascular markers.
About this ingredient
OPEXTAN® is a STANDARDIZED OLIVE FRUIT EXTRACT developed by INDENA (Italy) — distinguished from olive leaf extracts (Isenolic, Olivactive, Xorialyc) by FRUIT source. Olive fruit polyphenol profile is closer to EXTRA VIRGIN OLIVE OIL composition.
KEY ACTIVE: HYDROXYTYROSOL — most potent olive polyphenol; among most potent natural antioxidants. EU EFSA APPROVED HEALTH CLAIM: olive oil polyphenols (5 mg hydroxytyrosol + derivatives daily) protect LDL particles from oxidative damage.
EVIDENCE-BASED USES: (1) Cardiovascular health support; (2) LDL oxidation protection (EFSA claim); (3) Endothelial function; (4) Antioxidant defense; (5) Mediterranean diet polyphenol concentration.
CRITICAL CAUTIONS: (1) DOSE — per Indena specification; EFSA claim threshold 5 mg hydroxytyrosol + derivatives daily; (2) PREGNANCY/LACTATION — culinary olive use safe; supplementation generally safe; (3) ANTIHYPERTENSIVES — modest additive effects; (4) OPEXTAN vs OLIVE OIL CONSUMPTION — concentrated supplementation provides reliable polyphenol dose; extra virgin olive oil consumption (1-2 tablespoons daily) provides Mediterranean diet effects; both have value; (5) OPEXTAN vs OLIVE LEAF EXTRACTS — different polyphenol profiles; fruit closer to olive oil; leaf has different bioactive emphasis; (6) FOR CARDIOVASCULAR HEALTH — Mediterranean diet, exercise, weight management foundational; supplements adjunct; (7) ANTIOXIDANT POSITIONING — hydroxytyrosol among most potent natural antioxidants; (8) COMPARED TO POLYPHENOL-RICH FOODS — olives, olive oil, berries, dark chocolate, green tea provide polyphenols; supplementation provides concentrated standardized doses; (9) BRAND VERIFICATION — Opextan® is Indena trademark; specific olive fruit standardization; clinical evidence on this branded form.