UNITED KINGDOM / AGILITYPR.NEWS / December 22, 2025 / As the colder months draw in, immune systems are once again put to the test. Yet while shelves are full of familiar vitamins, few people realise the quiet strength of one of nature’s oldest wellness staples: the humble olive leaf. Used for centuries to promote vitality, olive leaves are rich in polyphenols and antioxidants.

Studies have shown that it can protect cells from oxidative stress and support the body’s natural defences.

UK supplement brand Supp, founded in Sheffield, is bringing this ancient ingredient into the modern wellness space with its High-Strength Olive Leaf Extract. Each capsule delivers 450 mg of standardised extract – the equivalent of 6,750 mg of whole leaf – providing a consistent 90 mg of oleuropein, the key compound responsible for the leaf’s health benefits.

Co-founder and biomedical scientist Olivia Buckley says, “Olive leaf extract has long been used to promote wellness, but what makes it remarkable is how the science now supports what traditional medicine always knew. 

“Oleuropein has strong antioxidant properties that help protect cells from oxidative stress and support the body’s natural defences. It’s a simple way to give your immune system consistent, everyday support. Since I started taking olive leaf extract daily, I’ve really noticed a boost in my own immune strength." 

Not only is olive leaf extract an invaluable ally for immunity: it is also environmentally friendly! Across olive-growing regions, tonnes of leaves and branches are left over after harvest and are often burned. Supp’s extract is made using these by-products, turning what was once waste into a highly effective supplement and reducing carbon emissions. 

Co-founder Toby Devonshire said, “We love that olive leaf extract is not only effective but also sustainable. Across the world, olive growers end up with tonnes of leaves and branches that often go to waste. 

“Turning that into something that genuinely supports health feels like the kind of innovation the supplement industry, and our planet, sorely need.”

The result is a supplement that reflects everything Supp stands for – evidence-led, sustainable and practical. Olive Leaf Extract is an easy addition to the daily routine, offering natural antioxidant support, immune defence, and a reminder that sometimes the most effective ingredients have been quietly working for us all along.

For more information, visit https://supp.store.