Visit GUYA – Europe's first Guayusa brand
GuayusaWiki

Ilex Guayusa

The comprehensive knowledge portal about the Amazon plant with natural caffeine and L-theanine

Guayusa (Ilex guayusa) is an evergreen tree species from the holly family (Aquifoliaceae), cultivated for millennia by indigenous peoples in the Amazon region. This scientifically founded encyclopedia provides comprehensive information on botany, history, chemical composition, health effects, and economic significance.

Ilex guayusa Pflanze
3%
Caffeine in the brew (approx.)
74
Scientific Studies
98%
Ecuador World Market Share
1500+
Years of Traditional Use

Scientifically Founded

All information on this website is based on peer-reviewed scientific publications and transparently provided with source references.

Novel Food Status (EU)
Safety assessment according to EU guidelines completed
Centuries of Use
No documented negative health effects at moderate intake; high doses can cause typical caffeine effects (restlessness, sleep problems).
Current Research
Ongoing studies on cognitive and metabolic effects

Experience Guayusa Yourself

GUYA is Europe's first Guayusa brand and offers certified products directly from Ecuador. With transparent supply chain and direct support of Kichwa communities.

See Also