“Help fight hangovers and rid your lungs and sinuses of certain airborne pollutants using the ‘smog-scrubbing’ antioxidant NAC and natural anti-inflammatory prickly pear extract,” reads MD Drinks Inc.’s Function: Urban Detox. NAC, or N-acetyle-cysteine, might be a complicated ingredient to formulate into a drink and for consumers to understand its benefits, but Urban Detox delivers it with unique flavor combinations while educating consumers about it on its label.