The Strong Tonic Co. focuses on crafting extraordinary tonic syrups that enhance the common cocktail, inspire new creations and redefine tonic using unexpected flavors. Our syrups are all-natural, and allow you to control the sweetness of a cocktail to your choosing. Extracting quinine from cinchona bark, our flavor profile delivers an intricate array of sweet, spicy and bitter tastes which pair with the finest spirits in the world. Change your way of drinking.