Built on the Science of Olive Oil
Olivea was born out of cutting edge research from leading cardiologists & based on human trials published in trusted peer-reviewed medical journals.
What Hydroxytyrosol Does for Your Body
Heart Health
This is the benefit with the strongest regulatory backing. The European Food Safety Authority (EFSA) reviewed the evidence and approved a specific health claim: olive oil polyphenols like hydroxytyrosol contribute to the protection of blood lipids from oxidative stress. In a landmark clinical trial (Covas et al., 2006), people who consumed high-polyphenol olive oil saw their "good" HDL cholesterol rise while their oxidized "bad" LDL dropped.
Studies also show hydroxytyrosol supports healthy blood vessel function and helps maintain normal blood flow, both important for long-term cardiovascular wellness.
Brain Health
One of the most promising findings is that hydroxytyrosol (or compounds it breaks down into) can actually reach the brain. Studies show olive polyphenols including HT help protect brain tissue from oxidative injury, and Zheng et al. (2015) found that HT supplementation improved neurogenesis and cognitive function via Nrf2/BDNF pathways.
Researchers have also found it may reduce brain inflammation and guard against the toxic protein buildup associated with age-related cognitive decline.
Cellular Protection
Most antioxidants work by neutralizing free radicals directly. Hydroxytyrosol goes a step further: it flips on your body's own antioxidant system. It activates a cellular switch called Nrf2, which tells your cells to produce more of their built-in protective enzymes like glutathione.
It also supports your mitochondria, the parts of your cells that generate energy. By reducing oxidative stress at this level, hydroxytyrosol helps keep your cells functioning efficiently as you age.
Inflammation Support
Chronic, low-grade inflammation is now considered a root driver of many modern health problems. Hydroxytyrosol helps by dialing down the body's inflammatory signals at the source. Richard et al. (2011) showed that hydroxytyrosol measurably reduced key inflammatory markers in immune cells.
It works alongside oleocanthal, another olive polyphenol found naturally in EVOO, which researchers found has a mechanism similar to ibuprofen (Beauchamp et al., 2005). Together, they offer complementary support for a healthy inflammatory response.
Metabolic Health
Research suggests hydroxytyrosol may support healthy blood sugar balance. de Bock et al. (2013) found that overweight men who took olive leaf polyphenols showed improved insulin sensitivity, meaning their bodies became more efficient at processing blood sugar.
Lab studies also show it activates AMPK, an enzyme sometimes called the body's "metabolic master switch" because it helps regulate how cells use energy.
Skin & Light Protection
D'Angelo et al. (2005) showed that hydroxytyrosol helps protect skin cells from UV-induced oxidative damage, and additional research supports its role in natural collagen production and maintaining an even skin tone.
It also helps reduce the activity of enzymes (called MMPs) that break down collagen as you age. Avola et al. (2019) showed HT prevents blue-light-induced MMP elevation and preserves collagen integrity in skin cells.
Healthy Aging
Aging is driven by the gradual accumulation of oxidative damage to DNA, proteins, and lipids, compounded by chronic low-grade inflammation. Hydroxytyrosol targets both sides simultaneously: it reduces oxidative damage while dialing down inflammatory signaling.
A 2025 randomized controlled trial showed that 15 mg/day of hydroxytyrosol for 16 weeks significantly reduced DNA damage, protein oxidation, and inflammation markers — the exact biomarkers that deteriorate with age.
Capsule-in-Capsule Technology
Most supplements use dry powder. Olivea's dual-capsule design keeps hydroxytyrosol in its natural oil-based matrix for superior absorption.
Most supplements use dry powder. Olivea’s inner capsule contains 200 mg of olive extract powder standardized to 20 mg hydroxytyrosol, surrounded by an outer capsule filled with 400 mg of real extra virgin olive oil. This keeps the molecule in its natural amphipathic environment, so it absorbs properly in both water and fat phases.
Science Advisory Board
Olivea's formulation is guided by leading researchers in cardiovascular health, nutrition science, and polyphenol biochemistry.




Third-Party Lab Results
Every batch independently tested by ISO 17025-accredited labs. Potency, purity, and safety — published in full.
Study Library
Browse peer-reviewed clinical research on olive polyphenols and hydroxytyrosol.
Network Meta-Analysis: Which Type of Olive Oil Best for CV Risk?
Nutr Metab Cardiovasc Dis, 2019Three-City Study: Intensive Olive Oil Use Linked to 41% Lower Stroke Risk
Neurology, 2011Nurses' Health: Mediterranean Diet & 29% Lower Heart Disease Risk in 74,886 Women
Circulation, 2009Recipe for Heart Health: Plant-Based Diet + EVOO Crossover RCT
J Am Heart Assoc, 2024The Tyrosol to Hydroxytyrosol Conversion: A Human RCT
Free Radic Biol Med, 2019EPICOR Italian Women: Olive Oil & Leafy Vegetables Linked to 44% Lower CHD Risk
Am J Clin Nutr, 2011EPIC-Spain: Olive Oil Linked to Lower Coronary Heart Disease Risk
Br J Nutr, 2012EPIC-Spain: Higher Olive Oil Intake Linked to 26% Lower Mortality
Am J Clin Nutr, 2012Olive Oils High in Phenolics Modulate Oxidative Status in Men
J Nutr, 2004Olive Oil Phenolics Reduced Postprandial LDL Oxidation in Humans
Free Radic Biol Med, 2006PREDIMED: Mediterranean Diet + EVOO Linked to 68% Lower Breast Cancer Incidence
JAMA Intern Med, 2015PREDIMED: EVOO Reduced Atrial Fibrillation Risk by 38%
Circulation, 2014PREDIMED Outcome-Wide: EVOO and Multiple Cardiovascular Endpoints
Am Heart J, 2025Hydroxytyrosol-Enriched Bread Improved HbA1c in T2D Adults
Eur J Nutr, 2023The Lipidome Score: How Replacing Saturated Fat Cuts CV and T2D Risk
Nature Medicine, 2024A Polyphenol Signature in Urine Predicts Lower CV Risk in PREDIMED
BMC Medicine, 2025Only Virgin Olive Oil -- Not Common -- Reduced Mortality in Spanish Cohort
Eur J Clin Nutr, 2022Italian Cohort: Olive Oil Linked to Lower Cancer, CV and All-Cause Mortality
Eur J Clin Nutr, 2024Within PREDIMED: Higher Olive Oil Intake Linked to 48% Lower CV Mortality
BMC Med, 2014Olive Oil and 14% Lower CV Risk in 90,000+ US Adults
J Am Coll Cardiol, 2020American Heart Association 2021 Dietary Guidance: Olive Oil's Role
Circulation, 2021Reviewing the Evidence: Olive Oil's Cardiovascular Effects (Tarabanis 2023)
Nutr Metab Cardiovasc Dis, 2023CORDIOPREV: 7 Years of Mediterranean Diet for Secondary CV Prevention
Lancet, 2022Olive Oil Linked to 28% Lower Dementia Death in 92,383 Adults
JAMA Netw Open, 2024EUROLIVE: Olive Polyphenols Raise HDL -- The Foundational Trial
Ann Intern Med, 2006High-Phenolic vs Low-Phenolic Olive Oil: Meta-Analysis of 26 RCTs
Crit Rev Food Sci Nutr, 2019PREDIMED Republished: Mediterranean Diet + EVOO Cut Major CV Events by 30%
N Engl J Med, 2018EFSA's 2017 Hydroxytyrosol Safety Opinion: What 'Novel Food Safe' Means
EFSA Journal, 2017Olive Oil and 19% Lower Mortality in 92,383 U.S. Adults Over 28 Years
J Am Coll Cardiol, 2022Olive Oil and Brain Health: 66% Lower Cognitive Impairment Risk in PREDIMED Trial
Journal of Neurology, Neurosurgery & Psychiatry, 2013Hydroxytyrosol Improved Complex Attention in Adults Aged 51 to 82
Nutrients, 2023Higher Polyphenol Levels Linked to 29% Lower Inflammation
British Journal of Nutrition, 2020Olive Oil Activated the GLP-1 Pathway in a Controlled Trial
Nutrition & Diabetes, 2015Olive Oil and Stroke Risk: A 101,460-Person Meta-Analysis
British Journal of Nutrition, 2014Hydroxytyrosol Metabolism Linked to 56% Lower Cardiovascular Risk in 1,851 Adults
American Journal of Clinical Nutrition, 2017Can a Polyphenol-Rich Diet Slow Biological Aging? An 18-Month Trial
BMC Medicine, 2023Hydroxytyrosol Improved Artery Function in Patients with Coronary Disease
European Journal of Clinical Investigation, 2023Hydroxytyrosol Improves 7 Biomarkers of Aging and Inflammation
Clinical Nutrition, 2025The Science Is In The Capsule
20 mg hydroxytyrosol per capsule. 4x the EFSA threshold. Backed by 2,000+ studies.
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