When looking for powerful antioxidant support Vitamin C or olive leaf extract – which is best?

Scientific research shows that olive leaf extract made from fresh-picked leaves has 400% (5 times) more antioxidant power than vitamin C. 

Olive Life Range
Made from freshly picked olive leaves, Olive Life contains more than 5x more antioxidant polyphenols than vitamin C. 


At the first sign of illness, chances are many of us reach for the vitamin C. It’s long been a popular way to support immunity, thanks to its well-documented antioxidant activity.

What many people don’t realise is that nature has generously provided us with another, even more powerful, natural antioxidant: olive leaf extract. The humble Olive has been staple of the Mediterranean diet for centuries – and believed to play a part in the incredible longevity of the region’s inhabitants – and olive leaf extract is rich in antioxidant polyphenols and other natural flavonoids.

Keep reading to see how olive leaf extract measures up against several other well known antioxidants used to support immunity, including Vitamin C...  


Graph showing Olive Leaf has 400% more antioxidant activity than vitamin C
Olive leaf extract has up to 400% more antioxidant activity than Vitamin C – that’s five times as much. 


Olive leaf extract – the natural immunity booster

As you can see in the chart above, olive leaf extract contains around five times more antioxidant power than Vitamin C, or in other words, a whopping 400% more!¹

That’s because olive leaf extract is high in polyphenols and other natural, plant-based flavonoids. The ‘hero polyphenol’ found in abundance in fresh picked olive leaf extract is antioxidant-rich oleuropein, a naturally occurring plant compound which is thought to be largely responsible for olive leaf extract’s health-giving properties.

Like vitamin C, olive leaf extract’s potent plant polyphenols, including oleuropein, have powerful antioxidant activity that can help to protect against free radicals produced during oxidative stress or inflammation.³,⁴ Scientific studies have shown that olive leaf extract supports immunity, general wellbeing and even cardiovascular health, helping to support maintenance of normal blood pressure and normal blood sugar levels. ⁵⁻⁷ 


How does olive leaf extract compare with other natural antioxidants?

A 2005 study out of Australia’s Southern Cross University compared our fresh olive leaf extract to dried leaf, and also to other popular antioxidant-rich foods and supplements, including green tea extract, grape seed extract and vitamin C.


Fresh Picked Olive lieaf has 6 x more antioxidant capacity than dried leaves
Made from fresh leaves, our Olive Leaf Extract is also more potent than green tea extract and grape seed extract.


As the graphic above shows, fresh olive leaf extract had the highest antioxidant activity – it’s nearly twice as potent as green tea extract, and around 10 times as powerful as grape seed extract.²

What’s more, when it comes to fresh olive leaf versus dried, there’s no comparison. Made from freshly-picked leaves, Olive Life’s antioxidant activity is over 6 times higher in antioxidant activity than dried olive leaf.² This demonstrates that, as with so many things in nature, fresh is generally best.

Why is it so much higher? We believe it’s the combination of fresh-pickedᵀᴹ leaves and our gentle water extraction method, which allows our olive leaf extract to retain optimal levels of antioxidant and protective compounds found naturally in the original fresh leaf.  


Freshly picked olive leaves retain many of the healing and protective properties found in the original olive tree. 


Why is olive leaf extract such a powerful antioxidant?

Olive trees have extremely powerful defence systems, enabling them to live for centuries. We grow Olea europaea olive trees (found extensively in the Mediterranean) because they’re rich in polyphenols - the naturally-occuring plant compounds that help to protect trees from disease, pests, droughts and extremes of hot and cold. 

Olive leaf extract is our way of passing on nature’s incredible properties to humans in a simple daily dose – so we can also enjoy the olive tree’s renowned protective benefits.

  • How much olive leaf extract should I take each day?
  • Each daily dose of Olive Life™ Olive Leaf Extract contains:
  • A high level of plant-based antioxidants – 136mg of oleuropein in fact
  • Many other natural flavonoids and polyphenols found within fresh olive leaves. 
  • The same amount of olive polyphenols as 50 tablespoonfuls of extra virgin olive oil.
  • The antioxidant power of 7 x 500mg doses of vitamin C.

The good news is that one daily dose of Olive Life is a lot easier to take than the equivalent amount of vitamin C! So why not try our olive leaf extract for yourself, and start reaping the rewards of this natural ‘super-antioxidant’? 


Note: The contents of this blog are for educational purposes and are not intended to offer personal medical advice. You should seek the advice of your physician or other qualified health provider if you have any questions regarding a medical condition. Never disregard professional medical advice or delay seeking it because of something you have read on this website. 


1. https://www.scu.edu.au/engage/news/latest-news/2006/southern-cross-university-researchers-find-australian-olive-leaf-extract-shows-promise-in-laboratory-testing.php 

2. Stevenson et al. (2005). Olive products Australia. Commercial and In-Confidence Report. 

3. Omar et al. (2017). Olive (Olea europaea L.) biophenols: a nutriceutical against oxidative stress in SH-SY5Y cells. Molecules, 22, 1858. 

4. Magrone et al. (2018). Olive leaf extracts act as modulators of the human immune response. Endocr Metab Immune Disord, 18, 85–93 

5. Navarro et al. (2017). Olive leaf extract concentrated in hydroxytyrosol … advanced glycation end products in a hepatic cell line (HepG2). Royal Soc Chem, 3, 944–953. 

6. Lockyer et al. (2017). Impact of phenolic-rich olive leaf extract on blood pressure, plasma lipids and inflammatory markers: a randomised controlled trial. Eur J Nutr, 56, 1421–1432. 

7. Lockyer et al. (2015). Secoiridoids delivered as olive leaf extract induce acute improvements in human vascular function and reduction of an inflammatory cytokine: a randomised, double-blind, placebo-controlled, cross-over trial. Brit J Nutr, 114, 75–83. 





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