Numb AF Anal Desensitizer Gel Unflavored 1.5 fluid ounces from Little Genie Products. Numb AF unflavored is specially formulated to make your anal experience more pleasurable. Numb AF anal desensitizing gel gently numbs on contact creating a comfortable sensation for anal play. For best results rub a generous amount around anal opening and wait 5 minutes for full activation before engaging in intercourse. Numb AF - Anal Desensitizing Gel is a pleasure positive product and was created with the intention of creating a more pleasurable and comfortable sexual experience for lovers. Active ingredient Lidocaine 5%.