Fact sheet provides a description of this medicinal shrub. Find info on its ingredients, action mechanisms, common uses, and dosage instructions.

Australian company sells herbal supplements and energy drinks made from guarana. Learn about the herb's effects and usage, and get recipes.

Find ordering information and a history for this herbal stimulant, and an explanation of its therapeutic uses and possible side effects.

Resource presents a history and description of this plant, details on active compounds and medicinal qualities, and dosage and safety tips.

Guide to tropical plants provides an illustration and chemical description of this herb. Find a history, and details on its current uses.

Find information on guarana for the US, Europe, and Brazil, including its history, known facts, a FAQ, and research.