Endorphin Rush Hot Sauce - Hottest Hot Sauce #10Endorphin Rush Hot Sauce - Hottest Hot Sauce #10.Here's the rush you've wanted to experience! Release the sensation that only the very special taste of ENDORPHIN RUSH can! Heightens any food: first an explosion of flavor, then a wave of heat! Tomato paste, water, pepper extract, vinegar, sugar, molasses, soy sauce. 5 oz. one of the hottest hot sauces out there!