Rowdy Mermaid has introduced Adaptonic, a line of sparkling tonics crafted with fruits, botanical herbs and immunity-supporting reishi mushroom extract. Adaptogens are herbs that help the body resist the effects of stress. As the first sparkling adaptogen tonic powered by reishi mushroom extract, Rowdy Mermaid Adaptonic uniquely combines flavor and function to deliver immunity-boosting deliciousness. Nicknamed the “mushroom of immortality,” reishis are an immunity-strengthening marvel. While these mushrooms may be immunity powerhouses, Adaptonic is made with reishi mushroom extract that delivers all of their perks, but with none of the mushroom taste. And, Rowdy Mermaid didn’t stop with mushrooms. The brand upped the adaptogenic ante by combining the power of reishi extract with other functional ingredients like ashwagandha, matcha tea and holy basil. Adaptonic is available in four flavors: Ashwagandha Blackberry, Matcha Yuzu, Strawberry Holy Basil and Chamomile Lime. All four varieties contain fewer than 25 calories and six grams of sugar per 12-ounce can (MSRP: $3.29/can) and are made with high quality organic ingredients.