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The Science Behind the Leaf

The research behind the leaf: peer-reviewed studies, compound science and regulatory analysis on Ilex guayusa.

Guayusa in the EU: understanding Novel Food status

Guayusa in the EU: understanding Novel Food status

Since 2017 the EU Union List authorizes the aqueous extract…

Guayusa and cognitive performance: what clinical research shows

Guayusa and cognitive performance: what clinical research shows

A randomized, placebo-controlled trial of a standardized guayusa extract measured…

The antioxidant profile of Ilex guayusa

The antioxidant profile of Ilex guayusa

Chlorogenic acids, polyphenols and flavonoids give guayusa an antioxidant capacity…

Caffeine + L-theanine: the science of calm, focused energy

Caffeine + L-theanine: the science of calm, focused energy

Why guayusa delivers steady, clear energy: the caffeine and L-theanine…