Master Series Frozen Deep Throat Desensitizing Spray. Freeze the throat of your plaything with this gag inhibiting spray. Simply spray lightly to produce a numbing effect, wait five minutes, then you are ready to play. Frozen contains a mild numbing agent that coats the back of the throat, helping to suppress the gag reflex and prevent discomfort during oral sex. The winter mint essence will not overwhelm, and may add some sensory tingling for the receiver as well. Size: 4 ounces. Active ingredient Benzocaine 5 percent.