Honoring the Ache; Guayaki; people of the rainforest, Guayaki is the premier seller of Guayaki tea, Yerba Mate, and coffee alternatives with a strong dedication to helping restore the rainforest. Providing 24 vitamins and minerals and an abundance of antioxidants, Guayaki and Yerba mate are healthy, refreshing, energy drinks and an excellent alternative to coffee and tea.