Ever struggled to get a sour cocktail exactly how you want it? Well, struggle no more, because Ungarnished SOUR agent was created to substitute the citrus, sugar, and egg white all in one bottle. It's a blend of two natural acids alongside hydrocolloids (aka, thickeners) and natural extracts, and is even vegan friendly. Just shake it over ice with equal parts of your spirit of choice, and voilà! You'll have your sour.