- Joined
- Feb 10, 2015
- Messages
- 55
It needs to be BULGARIAN and standardized to contain at least 20% Protodioscin(the active steroidal saponin). Studies have shown that Tribulus from different soils in different geographical locations will produce variations in Protodioscin levels, as well as other Frustanol Saponins.
All of the studies showing that Tribulus is not effective did not use a standardized Bulgarian extract. This effect has been documented, and Tribulus has also been proven to increase Testosterone in primates.
I've been using Tribestan for years, it's actually a pharmaceutical-grade product.
Great advice