Libido: what the evidence supports and Tribulus Terrestris
Each entry’s own grades, side by side. A grade says how strong the evidence is for one outcome — it does not rank one entry over the other.
Outcome map
Libido: what the evidence supports
2 graded interventions for libido, ranked by strength of evidence.
Grade C2 graded outcomesrevised Jul 10, 2026
Assembled by the app from other entries in this library. It adds no evidence of its own — follow the links to the entries it draws on.
Compound or practice
Tribulus Terrestris
A staple 'testosterone booster' that reliably does not raise testosterone — some libido effect at most.
Grade D2 graded outcomesrevised Jul 10, 2026
A structured monograph in Prometheus's bundled library. Its grades are the monograph's own reading of the evidence, not a peer-reviewed review.
Graded in both
Outcomes are matched by name. Two entries can describe the same outcome in different words, so one listed further down may still be graded in the other.
No outcome has the same name in both entries. They may still overlap under different wording — read the two lists below.
Graded only in Libido: what the evidence supports
- Tongkat Ali Small effectEvidence grade C
- Tribulus Terrestris Small effectEvidence grade C
Graded only in Tribulus Terrestris
- Testosterone Trivial effectEvidence grade D
- Libido Small effectEvidence grade C
What each entry says about the other
- Libido: what the evidence supports’s entry · Goes with: Grade C
Both columns are read from the entries as they stand in this library. A comparison is not advice to take either one, and it is no substitute for a clinician who knows the person.