HOT Twilight Pheromone Perfume Women's based on scents that are known to arouse men. For guys, pheromones are detectable in the olfactory system. Women also produce and release the pheromone but at a rate four times less than men so this perfume can only enhance your pheromone scent. Contains a stylish, Pheromone French perfume to create an erotic and irresistible aura. Size: 15ml.