Aren there really any stimulating products?
With certain forcing we can say: once there were. In Victorian times men, who tactfully saying “were not feeling too well”, were recommended to try “steppe oysters” with this meaning bulls testicles. Since they really contain big amount of male hormones, then very fresh and uncooked they actually could give some effect. But even in those times very few men could dare to try that out. Besides have to say that benefit of such a product is questionable: biggest part of hormones is destructed by stomach acid.
