It can irritate the testis to secrete male-hormone which can cure impotence, lack of sexual desire and little sperm containing. Name: Tribulus Terrestris P.E.Category: Standard Herbal ExtractEffectiveness: Immunity enhancerPlant of Origin: Tribulus terrestris L.Appearance:Brown Yellow Powder Specifications of ProductContent Specifications: 20%40%,60%,90%Total Saponins by UV ...