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Studies related to Testosterone and Tribulus terrestris

Efficacy Of Tribulus Terrestris For The Treatment Of Hypoactive Sexual Desire Disorder In Postmenopausal Women: A Randomized, Double-blinded, Placebo-controlled Trial

Effect Increase
Values (ng/dl) Intervention group: 12 pre, 14.2 post. Placebo group: 12.8 pre, 11.7 post.
Trial Design Randomized trial
Trial Length 1-6 months
Number of Subjects 45
Sex Female
Age Range 30-44, 45-64, 65+
Notes for this study:
45 postmenopausal women were recruited and randomly assigned to either 750 mg per day (divided into 3 equal doses) or placebo for 120 days. According to the Female Sexual Function Index questionnaire, there was no significant difference between groups in any of the measures of libido and sexual satisfaction or the combined ratings. Women taking Tribulus Terrestris reported significantly fewer sexual problems on the Sexual Quotient Female Version questionnaire than women taking placebo. Free and bioavailable testosterone increased in the group taking Tribulus Terrestris, but total testosterone didn't reach statistical significance. The placebo group saw no significant changes in testosterone. 9 out of the original 45 participants dropped out of the study for personal reasons or due to nausea. There was no difference between groups in the number dropping out due to nausea.

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