Alcohol is both a preservative and a safe vehicle for Reculture drops. The alcohol in a standard Reculture drop is about 1/80 of an ounce, far from what is typically found in an alcoholic beverage. One would need to consume over 80 Reculture drops to ingest the standard amount of alcohol found in a serving of alcohol (1 oz.). We use organic, gluten-free alcohol made from non-GMO corn.