T Dean Tonic is hand made from cinchona bark powder, citrus juices & zest, and a blend of herbs & spices for the most refreshing and lightest tonic you will have tasted. Lightly sweetened with agave - add a 1/2 oz of T Dean Tonic to your favorite clear or light distilled spirit - Gin, Vodka, Rum, Tequila or even a light whiskey - along with a little soda water.