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Guayusa Leaves hanging to dry

What is Guayusa?

Pronounced why-you-sa, this ancient herb comes from a type of Holly tree (Ilex Guayusa). Guayusa thrives where the Ecuadorian Amazon meets the Andes – and the leaves are picked, dried and brewed to make a nourishing herbal tea. Today, Guayusa is growing in popularity around the world for its natural boost of caffeine and antioxidants.

Guayusa Tea in pot

What’s The Tea On Guayusa?

  • Did you know that Guayusa contains more antioxidants than a cup of green tea? Antioxidants are responsible for reducing inflammation, stimulating the immune system and fighting off disease.
  • Guayusa contains 15 Amino Acids, which are the “building blocks of life.” One of the most notable Amino Acids is L-Theanine, which has the ability to calm the mind, while increasing energy and awareness. 
  • Guayusa is rich in minerals, such as magnesium, potassium, zinc, chromium and calcium. These minerals work to maintain proper fluid balance and strengthen your bones.
  • Guayusa is rich in Vitamins D and C, which are involved in many body functions such as promoting healthy bones, supporting the immune system and repairing body tissues.
  • The properties in Guayusa are believed to aid digestion as well as prevent bloating, stomach upset and constipation.
  • With Guayusa, you will avoid the caffeine “jitters” or “slump.” Guayusa slowly releases over 4-6 hours, fuelling you with natural, clean energy.

Research Articles

Ilex guayusa loes (Aquifoliaceae): amazon and andean native plant
L.G. Sequeda-Castañeda, G. Modesti Costa, C. Celis, F. Gamboa, S. Gutiérrez, P. Luengas

Evaluación del efecto anticelulítico de una formulación cosmética a base de extracto alcohólico foliar de Guayusa, Ilex guayusa Loes (AQUIFOLIACEAE) 
Carpintero-Salvador N, Salazar-Enríquez ME. 

A critical review of the composition and history of safe use of guayusa: a stimulant and antioxidant novel food
Graham Wise, Adam Negrin

Comparative Composition Analysis of the Dried Leaves of Ilex guayusa (Loes.)
Graham Wise, Demetrio E. Santander

Assessing the History of Safe Use of Guayusa
Graham Wise, Demetrio E. Santander

Amazonian Guayusa (Ilex guayusa Loes.): A Historical and Ethnobotanical Overview
Juan F. Duenas, Christopher Jarrett, Ian Cummins, Eliot Logan–Hines

Energizing agroforestry: Ilex guayusa as an additional commodity to diversify Amazonian agroforestry systems
Torsten Krause, Barry Ness

Ilex guayusa: A systematic review of its Traditional Uses, Chemical Constituents, Biological Activities and Biotrade Opportunities
Matteo Radice, Neyfe Cossio, Laura Scalvenzi

Health Benefits of Bioactive Compounds from the Genus Ilex, a Source of Traditional Caffeinated Beverages
Ren-You Gan, Dan Zhang, Min Wang, Harold Corke



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