✔ Tribulis Terrestris capsules that are standardised to contain 40% saponins ✔ Rapid release capsules allow for faster absorption by the body ✔ Quality Assured; high quality and rigorously tested Holland & Barrett Tribulis Terrestris contain natural steroidal chemicals called saponins, which are the active ingredient in tribulis terrestris. Tribulis Terrestris is thought to promotes sexual desire and sexual capacity. It's also good for maintaining the health of the respiratory system and having a soothing effect on the nervous system. This supplement is widely used by body builders for its effects. Each fast-release capsule provides a 250mg dose of tribulis terrestris and are standardised to ensure 40% saponin content. ✔ Tribulis Terrestris capsules that are standardised to contain 40% saponins ✔ Rapid release capsules allow for faster absorption by the body ✔ Quality Assured; high quality and rigorously tested Holland & Barrett Tribulis Terrestris contain natural steroidal chemicals called saponins, which are the active ingredient in tribulis terrestris. Tribulis Terrestris is thought to promotes sexual desire and sexual capacity. It's also good for maintaining the health of the respiratory system and having a soothing effect on the nervous system. This supplement is widely used by body builders for its effects. Each fast-release capsule provides a 250mg dose of tribulis terrestris and are standardised to ensure 40% saponin content.