Mouthwash, Gargle Uses Effectively freshens the mouth and leaves it feeling clean. Directions Astring-o-Sol must be diluted. For correct dilution, pour concentrate to Astring-o-Sol fill line. Add water to water fill line. Astring-o-Sol may be further diluted with water to suit taste. Rinse mouth thoroughly for 20 seconds to effectively clean. For best results, use diluted mixture immediately. Do Not Use in Polystyrene (Clear Plastic) Cups. Warnings KEEP OUT OF THE REACH OF CHILDREN. In case of accidental ingestion, seek professional assistance or contact a Poison Control Center immediately. Active Ingredients S.D. Alcohol; 38-B (75.6%); Water; Methyl Salicylate; Myrrh Extract; Zinc Chloride; Citric Acid