Astroglide Spark Hybrid Lubricant 2.5 ounces. 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. Features: long lasting, latex condom compatible, water and silicone based, silky feel. Ingredients: Glycerin, Dimethicone, Purified Water, Cyclomethicone, PEG/PPG-18/18 Dimethicone, Propanediol, Sodium Chloride, 1, 2 Hexanediol, Dimethiconol, Caprylhydroxamic Acid, Natural Flavors.