This is said to be standardized to 40% saponins not protodioscin.I've been using 1g about a month.
It had some androgenic effects in the first week, but at this point I feel nothing significant except the dry skin on my face.It may caused eczema on my shoulder and arms too.
I am using this.
Now Foods, スポーツ、トリビュラス、1,000 mg、180タブレット