Allmax Essentials TribX90 - May increase strength and stamina. Helps support a healthy sex drive naturally and may alleviate tired, weak, moody feelings. Clinical research has shown that Tribulus Terrestris may support healthy libido function in humans, and that it may also support healthy blood pressure and healthy cholesterol profiles already in normal range. Tribulus supplements may stimulate the body’s production of luteinizing hormone which in turn promotes the production of Testosterone, the key male hormone responsible for helping to add lean body mass, increase metabolism and support healthy libido or sex drive levels.