Brand Names for Tribulus

Twinlab Fuel

• The corporation ISI Brands sells its tribulus supplement, Tribulus Fuel, under the Twinlab Fuel brand name. This capsule-based supplement utilizes a gluten-free formula, which means sufferers of celiac disease can safely consume the product without fear of allergic reaction. The manufacturer of Tribulus Fuel recommends taking one or two supplement capsules daily, ideally in conjunction with breakfast and dinner. However, as with all brand name tribulus supplements, the U.S. Food and Drug Administration (FDA) does not evaluate or test such recommendations.

Optimum Nutrition

• Optimum Nutrition Inc., a subsidiary of Glanbia, produces the Optimum Nutrition brand of tribulus supplements, known as Tribulus 625. Each capsule-style supplement contains 625 mg of tribulus, which occurs both as a powder and as a liquid extract. Additional ingredients in this Optimum Nutrition product include magnesium stearate, silica and gelatin. Manufacturers recommend taking Tribulus 625 once or twice daily, ideally with breakfast and dinner.

Vitrix

• Vitrix is a highly concentrated tribulus supplement from the company Nutrex Research, which was founded in 2002. Unlike other types of tribulus, Vitrix uses liquid-capsule delivery for increasing absorption rates and its capsule coating is derived from vegetable matter. A single Vitrix capsule contains 1,000 mg of liquid extract from German tribulus. The manufacturer recommends taking one capsule daily. However, prior to workouts the recommendation is 6 capsules. Vitrix also contains a specialized blend of phytonutrients known as NTS-5.

Tribex

• The company Biotest produces Tribex brand tribulus supplements, including the popular Tribex-500. Each capsule of the supplement contains 500 mg of concentrated Bulgarian tribulus extract. Other ingredients in the supplement include the aphrodisiac herbs longjack (Eurycoma longfolia) and Avena sativa, as well as the hormone-regulating herb vitex (Vitex agnus-castus). The manufacturer of Tribex recommends taking the supplements in cycles. More specifically, you should either take Tribex for five days in a row and then stop for two days; or take Tribex for four weeks in a row and then stop for two weeks. The manufacturer recommends consuming four capsules twice daily, which makes a total of eight capsules per day.