Ingredients: Ingredients: Natural enzymes, natural bacteria cultures, biodegradable cleaning agents, natural citrus extracts, and trace preservative (.00005%). Directions: Instructions: Start Up Treatment: Pour 1/3 bottle down slow drain. Wait 6-8 hours before running water down the drain. Note: This may cause loosened build-up to slow or block drain water flow. This means our drain maintainer is doing its job to eat away build-up on pipe walls. Just plunge and repeat above-recommended treatment. Maintenance Treatment: Pour 2-3 ounces of our drain maintainer down each drain. Repeat every 2 to 4 weeks to keep drains flowing freely.