Rock Hard with Tribulus Terrestris. Promotes sexual capacity. Features: - Tribulus Terrestris supports the health of the reproductive organs - Tribulus Terrestris support the sexual activity. - Saw Palmetto is good for the prostate. The unique Rock Hard tablets contain a balanced composition of ingredients specifically selected for the promotion of male health. Tribulus Terrestris supports, among other things, the blood supply, which can have a positive effect on the blood circulation of the penis. In addition, Rock Hard contains various active ingredients that promote sexual desire.