Guayaki Yerba Mate Shot Wild Berry Reishi. Organic Brand. Dietary Supplement. USDA Organic. 2 fl oz (59 ml). Reishi is an adaptogenic mushroom that can support the immune, endocrine, and nervous systems*. Guayaki Yerba Mate is a high energy infusion made from the naturally caffeinated and nourishing leaves of the celebrated south american mate tree. Contains 70 mg caffeine. Gluten-free. 65% Fair trade ingredients. Certified Fair trade by IMO. Certified Organic by CCOF. *These statements have not been evaluated by the food and drug administration. This product is not intended to diagnose treat, cure, or prevent any disease. 888-482-9254. www.guayaki.com.