Dietary Supplement. HPLC Tested for purity. 100% Micronized. Metabolic Performance Series. Supports healthy testosterone levels naturally. Supports muscle mass, strength and libido. Maximizes athletic performance. TribuPlex is the most potent steroidal saponin complex available today. This complex is built upon a base of Tribulus terrestris (unheard of 70% or more steroidal saponins). Tribulus terrestris has been used for centuries in Europe to support sexual drive and performance by supporting testosterone levels naturally. This complex is further complimented by a synergetic, proprietary blend of furostanol rich concentrated extracts of Dioscorea and Trigonella foenum. Eastern European studies have shown these steroidal saponins (furostanols and protodioscin), along with total saponins present in tribulus terrestris, to evoke dramatic effects on supporting hormone balance. To round out this unique formula, we have added Rhodiola rosea, a powerful adaptogen that has shown to support athletic performance and minimize fatigue. Contains no common allergens. Tribulus Terrestris: (70% Steroidal Saponins Yielding 280 mg).