Sulforaphane activates powerful genes in our cells which repair and maintain our metabolism.
This makes it an exciting new approach for a wide range of health conditions. But getting enough of it from our food was always a huge challenge… until now.
Our super-broccoli is a uniquely good source of sulforaphane, delivering up to 5x more than a normal broccoli – unlocking the power of this natural molecule like never before.
GRextra was developed and tested in collaboration with the Quadram Institute (a world-leading food health research centre), NHS hospitals and other key partners.
Independent research
More than 3,000 research studies have explored the health benefits of the active ingredients in our unique strain of super-broccoli – across a range of areas.
Tested & trusted
We’ve spent the time and money to develop something real, which can make a genuine positive impact on people’s health and lives – not just another ‘miracle cure’.
Developed by Scientists
We're no new kid on the block.
Our team of scientists have been working on our super-broccoli for almost 30 years now.
They’re powered by the promise that their work could transform the lives of millions.
It’s already started – but we dream of a world where people can live better for longer, and no-one has to grow old before their time.
So why go to the hassle of creating a super-broccoli, rather than just creating a supplement?
Well, we believe that plants are better than pills – and for good reason. Our super-broccoli doesn’t just contain one active ingredient; it contains many different ones that work together to boost your health, as well as a range of vitamins, minerals and dietary fibre that bring additional health benefits.