This scented human pheromone concentrate will attract men. Copulins + Androstenone + Androstenol Long Lasting Half Ounce Bottle! What are pheromones? A chemical substance that is produced by an animal and serves especially as a stimulus to other individuals of the same species for one or more behavioral responses -- called also ectohormone *** How do pheromones work? To the scientist, pheromones act in a very different way from normal smells. Some years ago, researchers discovered the existence of a small organ in the nose of many animals (known as the VNO), which has a direct affect on social behavior. What makes this discovery important is that the VNO/pheromone effect is not dependent on any conditioning through experience. It is direct. *** Do pheromones REALLY work on humans? Pheromones work on a BIOLOGICAL and very SUBTLE level with humans, this we know for sure. Your experience may vary and it just requires some experimenting!