GoodHead Deep Throat Spray mildly numbs the back of the throat and suppresses the gag reflex to allow deep oral penetration without discomfort. Go down easier. GoodHead Deep Throat Spray mildly numbs the back of the throat and suppresses the gag reflex to allow deep oral penetration without discomfort. This functional, flavorful spray is formulated for minimal medicinal taste and maximum effect in a variety of mouthwatering flavors. Active Ingredients: Benzocaine 5.00%, Glycerin 33.0%