For testosterone, tongkat ali has more human evidence than cistanche. A 2022 meta-analysis found tongkat ali can raise testosterone, mainly in men with low levels, while cistanche has just one small human trial and mostly animal research behind it. In the cistanche vs tongkat ali for testosterone debate, tongkat ali is the better-supported choice, though neither has strong evidence.
Key takeaways
- Tongkat ali has several human trials; cistanche has one
- Tongkat ali works best in stressed or low-testosterone men
- Most cistanche testosterone data comes from rodents
- Neither replaces a blood test or medical treatment
Cistanche vs tongkat ali for testosterone at a glance
| Cistanche | Tongkat ali | |
|---|---|---|
| Origin | Desert parasitic plant (China, Middle East) | Southeast Asian root |
| Human testosterone trials | One small 2025 trial | Several small trials, pooled in a 2022 meta-analysis |
| Main active compounds | Echinacoside, acteoside (phenylethanoid glycosides) | Eurycomanone, quassinoids |
| Studied doses | Varies; human data limited | About 100–600 mg/day of standardized extract |
| Main safety concerns | Little human safety data | Rare liver injury; contamination |
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What is cistanche?
Cistanche is a parasitic desert plant that grows on the roots of other shrubs. Species such as Cistanche deserticola and Cistanche tubulosa have a long history in traditional Chinese medicine, where they’re used as a kidney “yang” tonic for fatigue, low libido and aging. Interest in it as a testosterone booster grew recently on fitness forums and social media.
The evidence for cistanche and testosterone
- Animal studies. Several rodent studies found cistanche extracts raised testosterone or protected testicular function, often in animals with damaged testes or hormone deficits. Animal results frequently don’t carry over to people.
- One human trial. A 2025 randomized, double-blind trial in Nutrients (Tao et al.) gave 48 young men, half trained and half untrained, either Cistanche deserticola extract or placebo for eight weeks alongside a resistance training program. The cistanche groups gained more strength, and the authors reported improvements in testosterone and cortisol along with lower markers of muscle damage. It’s a promising early result, but it’s a single, small study that hasn’t been replicated.
We found no trials of cistanche in older men or in men with low testosterone, which are the groups most likely to look for a booster.
What is tongkat ali?
Tongkat ali (Eurycoma longifolia), also called longjack, is a root used traditionally in Malaysia and Indonesia for energy and male vitality. Our tongkat ali evidence guide covers it in depth.
The evidence for tongkat ali and testosterone
- A 2022 meta-analysis in Medicina (Leisegang et al.) pooled nine studies, including five randomized trials, and found tongkat ali raised total testosterone overall. Effects were clearest in men with low testosterone or late-onset hypogonadism. The authors flagged small sample sizes and signs of publication bias.
- A 4-week trial in 63 moderately stressed adults (Talbott 2013) found 200 mg a day lowered cortisol and raised testosterone in saliva. It was funded by the extract maker, as most tongkat ali research is.
- Results in healthy young men with normal levels are less consistent.
Which is better for testosterone?
Tongkat ali, on current evidence. It has more human trials, more consistent results in men with low testosterone, and well-defined doses. Cistanche is interesting, and the 2025 trial is a good start, but one study of 48 young men isn’t enough to recommend it for testosterone.
Some men stack them. There’s no research on the combination, so its effects and safety are unknown.
If you’re comparing herbs, ashwagandha has more trials than either; see our tongkat ali vs ashwagandha comparison. For a broader look, visit our testosterone support hub.
Side effects and safety
Cistanche
Human safety data are limited because so few studies exist. In traditional use, cistanche is considered a mild laxative, so loose stools are possible. Other risks:
- Unknown drug interactions
- Not studied in men with hormone-sensitive conditions such as prostate cancer
- Quality varies between products and species, and labels don’t always say which species or extract strength you’re getting
Tongkat ali
- Usually well tolerated in trials, with side effects similar to placebo
- Possible stomach upset, headache, restlessness or trouble sleeping
- NIH’s LiverTox lists it as a possible rare cause of liver injury
- It reduced absorption of the blood pressure drug propranolol in one small study
- Some products have been found to contain mercury, lead or hidden prescription drugs
For both, choose third-party tested products, and talk to your doctor first if you take medication or have liver, kidney or prostate problems.
Before you try either
Low energy, low libido and erection problems are often caused by poor sleep, weight gain, stress, alcohol or medical conditions. A morning blood test is the only way to know if your testosterone is actually low. Our guide to symptoms of low testosterone explains what to look for. Erectile dysfunction can also be an early sign of heart disease or diabetes, so it deserves a doctor’s visit.
Bottom line: Tongkat ali has the stronger case for testosterone, especially in stressed men or those with low levels, though the trials are small and mostly manufacturer-funded. Cistanche has promising early data from one small trial in young men. If you try either, use a tested product and give it 8–12 weeks.
Does cistanche increase testosterone?
It may, but the evidence is thin. Animal studies are positive, and one 2025 trial in 48 young men doing resistance training reported improved testosterone. No trials have been done in older men or men with low testosterone.
Is cistanche better than tongkat ali?
Not on current evidence. Tongkat ali has more human trials and more consistent results for testosterone, particularly in men with low levels.
Can I take cistanche and tongkat ali together?
Some men do, but the combination hasn’t been studied, so its safety and effects are unknown. Check with your doctor first, especially if you take medication.
What are the side effects of cistanche?
Human safety data are limited. Cistanche is traditionally used as a mild laxative, so loose stools are possible. Its drug interactions haven’t been studied.