A traditional botanical whose steroidal saponins are linked with drive.
Tribulus Terrestris is a flowering vine whose steroidal saponins, chiefly protodioscin, are why it appears in nearly every men's vitality formula.
The trial evidence for Tribulus is generally stronger for drive and libido than for a measurable rise in testosterone.
Vigor Boost includes Tribulus Terrestris as one of its nine named ingredients, working alongside Horny Goat Weed on the drive-support side.