Compared on the evidence
Herbal Supplements
Herbs are where most testosterone booster claims come from and where the evidence is thinnest. A few have human trials. Most have animal data, a single small study or nothing at all.
The products below are the ones with at least some human evidence. Ratings reflect the strength of that evidence, not how good the marketing is.
Our picks, side by side
Ratings weigh the human evidence, the dose on the label and value. Every Buy Now button takes you straight to the product.
| Product | Benefits | Best for | Rating | Buy |
|---|---|---|---|---|
| Ashwagandha KSM-66 600 mg |
| Stressed, poorly sleeping men in their thirties and up | 4.5 | Buy Now |
| Fenugreek Extract 500 mg |
| Men whose main complaint is libido | 4.0 | Buy Now |
| Tongkat Ali 200:1 Extract |
| Men over fifty with borderline levels | 4.0 | Buy Now |
| Tribulus Terrestris 1000 mg |
| Libido rather than testosterone itself | 3.4 | Buy Now |
| Maca Root 1500 mg |
| Men who want libido support and already have normal testosterone | 3.6 | Buy Now |
- Ashwagandha KSM-66 600 mg4.5
- The herb with the most consistent trial results for testosterone
- Lowers cortisol and improves sleep in several studies
- Standardised root extract with a clear dose
Best for: Stressed, poorly sleeping men in their thirties and up
Buy Now - Fenugreek Extract 500 mg4.0
- Several small trials report higher free testosterone and libido
- Standardised seed extract, taken once a day
- Mild, well tolerated in studies
Best for: Men whose main complaint is libido
Buy Now - Tongkat Ali 200:1 Extract4.0
- Trials in older men and stressed adults show modest testosterone rises
- May lower cortisol under stress
- Long history of traditional use
Best for: Men over fifty with borderline levels
Buy Now - Tribulus Terrestris 1000 mg3.4
- Some evidence for libido in men with low drive
- Widely available and inexpensive
- Easy to add to an existing routine
Best for: Libido rather than testosterone itself
Buy Now - Maca Root 1500 mg3.6
- Trials show better libido without a change in hormones
- Gentle, food-like root powder in capsules
- Well tolerated over months
Best for: Men who want libido support and already have normal testosterone
Buy Now
Affiliate disclosure: Supplements for Testosterone may earn a commission if you buy through links on this page, at no extra cost to you. This does not affect what we recommend.
