Pheromone enhancers were technology used to alter pheromones in the honeymoon suite of the Grand Regent hotel on Lanz Carpo. When visiting the planet on a mission for the Rebel Alliance, Leia Organa and Han Solo were given a pass for the honeymoon suite by District Advocate Dar Champion, which the rebels used to get into the hotel. The droid that showed Organa and Solo to the suite prepared to light the pheromone enhancers, but both rebels objected.