Astroglide Spark is a creamy hybrid formula that combines the best of water-based and silicone based personal lubricants. You get the natural feeling of a water-based formula mixed with the ultra-long lasting effect of a silicone. Ingredients:Glycerin, Dimethicone, Purified Water, Cyclomethicone, PEG/PPG-18/18 Dimethicone, Propanediol, Sodium Chloride, 1,2-Hexanediol, Dimethiconol, Caprylhydroxamic Acid, Natural Flavors . By Astroglide.