Ingredient spotlight · Hydroxytyrosol in Health Royals’ peak performance formula · 5 min read
How a characteristic olive polyphenol became a precisely measured ingredient, and what human research is adding to its Mediterranean story.
Key takeaways
• Hydroxytyrosol is a naturally occurring polyphenol found in olives and olive oil.
• Human research has explored 15 mg hydroxytyrosol daily in relation to oxidised LDL, oxidative stress and antioxidant status.
• Health Royals provides 15 mg hydroxytyrosol through 150 mg of the standardised olive-fruit extract Hytolive®.
The olive has shaped Mediterranean food culture for thousands of years.
We know it for its flavour, its oil and its place at the centre of one of the world’s most studied dietary patterns.
Modern science has added another layer to the story by looking more closely at the natural compounds found within the fruit.
One of the most interesting is hydroxytyrosol.
A characteristic olive polyphenol, hydroxytyrosol has attracted scientific attention particularly in relation to oxidative stress and lipid oxidation.
Its story brings together something ancient and familiar with a more precise modern understanding of what the olive contains.
What is hydroxytyrosol?
Hydroxytyrosol is a naturally occurring phenolic compound associated with olives and olive oil.
It belongs to the wider family of polyphenols, a diverse group of plant compounds with different structures and biological properties.
Within the olive, hydroxytyrosol appears alongside related compounds including tyrosol and derivatives of oleuropein.
The amount found naturally can vary according to the olive variety, ripeness and processing method.
This is why standardisation matters when hydroxytyrosol is used as a nutritional ingredient.
“Olive extract” tells you where an ingredient comes from. It does not necessarily tell you how much hydroxytyrosol it provides.
Why is oxidative protection part of the story?
Oxidation is part of normal human biology.
The body continuously produces reactive compounds during everyday metabolic processes, while environmental and lifestyle factors can add to the overall oxidative load.
The body has its own protective systems to help maintain balance.
When that balance is disrupted, lipids, proteins and other cellular structures can be affected.
One area studied in relation to olive polyphenols is the oxidation of LDL particles.
European authorities have authorised a health claim stating that qualifying olive oil polyphenols contribute to the protection of blood lipids from oxidative stress under defined conditions of use.
That claim applies specifically to olive oil meeting those conditions. It should not automatically be extended to every extract or supplement containing hydroxytyrosol.
This is why research on hydroxytyrosol itself adds an important layer to the story.
What did the 16-week study find?
A randomised, double-blind, placebo-controlled study published in 2025 investigated hydroxytyrosol supplementation in adults aged 40 to 70 with overweight and prediabetes.
Participants received either 15 mg hydroxytyrosol daily or placebo for 16 weeks.
The primary outcome was oxidised LDL, often shortened to oxLDL. Researchers also assessed other markers related to oxidative stress, antioxidant status, inflammation and metabolic health.
Compared with placebo, hydroxytyrosol supplementation was associated with reductions in oxidised LDL and several other markers of oxidative stress.
The researchers also reported improvements in total antioxidant capacity and a reduction in the inflammatory marker IL-6.
Other areas, including the conventional blood-lipid profile, body measurements, sleep, mental wellbeing and physical capacity, did not change significantly.
That specificity matters. Good research helps us understand what changed, what did not and under which conditions.
Why do standardisation and dose matter?
With fruit and botanical extracts, the total amount of the extract and the amount of its defining compound are not the same thing.
150 mg of olive extract does not mean 150 mg of hydroxytyrosol.
In Health Royals’ peak performance formula, the relationship is clearly defined:
150 mg Hytolive® provides 15 mg hydroxytyrosol per daily serving.
This is the same hydroxytyrosol amount used in the 16-week human study discussed above.
Using a studied amount does not mean that every person will experience the same result.
It does, however, provide a more meaningful basis for formulation than including an olive extract without identifying how much hydroxytyrosol it contains.
The ingredient name is only the beginning. Standardisation tells us what sits behind it.
The ingredient at a glance
From Mediterranean olive fruit to a clearly defined daily amount.
Form
Standardised olive-fruit polyphenol extract
Daily amount
150 mg Hytolive®
providing 15 mg hydroxytyrosol
Ingredient source
Hytolive® from Spanish olive fruit
How hydroxytyrosol fits into the complete formula
Hydroxytyrosol is included as one part of a broader formula for everyday resilience and long-term wellbeing.
Hytolive® sits alongside extra virgin olive oil, creating an olive-derived foundation within the softgel.
The formula also includes DHA-rich algal omega-3, active B vitamins, vitamin D3, vitamin K2, zinc, selenium and other carefully selected micronutrients.
Each ingredient has its own role.
The purpose is not to make every ingredient tell the same story, but to bring together complementary nutrients in one considered daily routine.
Discover Health Royals’ peak performance formula
References
European Food Safety Authority. Scientific Opinion on the substantiation of health claims related to polyphenols in olive and protection of LDL particles from oxidative damage. EFSA Journal. 2011;9(4):2033. DOI: 10.2903/j.efsa.2011.2033.
Moratilla-Rivera, I.; Pérez-Jiménez, J.; Ramos, S.; Portillo, M.P.; Martín, M.Á.; Mateos, R. Hydroxytyrosol supplementation improves antioxidant and anti-inflammatory status in individuals with overweight and prediabetes: a randomised, double-blind, placebo-controlled parallel trial. Clinical Nutrition. 2025;52:17–26. DOI: 10.1016/j.clnu.2025.07.006.
Hytolive®. Olive Fruit Polyphenol: cardiovascular health and formulation information. Ingredient technical information.
Disclaimer: This article is intended for general information and educational purposes only and does not constitute medical advice. It summarises ingredient characteristics, published research and manufacturer-provided information. Individual needs and experiences may vary. Consult a qualified healthcare professional with questions about supplementation, medication or personal health.
