Goodhead Tingle Drops from Doc Johnson. This set of oral sex enhancers intensify blow jobs by tingling, teasing, and sweetening the entire package. Our Goodhead Tingle Drops come packaged in easy-to-use 1 ounce drip bottles and three mouthwatering flavors: Strawberry, Green Apple, and Watermelon. You will love the user friendly package and delicious fruit flavors that effectively provide the perfect blend of great taste and delightful sensations. A couple drops are all you need! Features: oral sex enhancing drops. Three delicious flavors: Strawberry, Green Apple and Watermelon. Includes Three Distinct 1 ounce Tubes. Heightens sensations during fellatio. Proudly made in the USA by Doc Johnson Novelties.