Tribulus
A traditional tonic used to support libido and reproductive vitality.
Tribulus (Tribulus terrestris) is a perennial herb in the Zygophyllaceae family, native to the Mediterranean and now naturalized across warm temperate and tropical regions. Historically used in Chinese, Indian, Greek and Arabic medicine for diuretic, anti-inflammatory and tonic purposes, the plant’s fruits and leaves are commonly processed into powders, capsules and standardized extracts rich in steroidal saponins, alkaloids and flavonoids.
Contemporary use often targets libido, fertility and androgen-related concerns, and the herb is also used in some athletic supplement formulas; effects and responses vary by individual. Preparations and dosages differ by format (dry extract 250–750 mg/day; decoction about 10 g per cup, 1–2 times daily; fluid extract 1–2 tablespoons/day), and documented cautions include contraindication in pregnancy, lactation, hormone-dependent cancers, and with antidiabetic or antihypertensive therapies; overdose may cause dizziness, nausea, palpitations and other adverse effects.
At a Glance
A low-growing perennial known for its spiny, star-shaped fruits, Tribulus has a long history in Chinese, Indian, Greek and Arabic traditional medicine for diuretic, anti-inflammatory and tonic uses.
The fruits and leaves are commonly processed into powders, capsules, tablets and liquid extracts rich in steroidal saponins, harmine-type alkaloids and flavonoids.
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| Scientific name | Tribulus terrestris |
| Plant family | Zygophyllaceae |
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Origin & History
Tribulus terrestris is native to the Mediterranean region and is now widespread across warm temperate and tropical areas of the world, from western Asia and India to North Africa, Australia and parts of North America. The plant thrives in dry, nutrient-poor soils and uncultivated places; its robust root system and rapid seed-based reproduction allow it to colonize disturbed habitats and arid landscapes.
Used for millennia in traditional medical systems, Tribulus appears in Chinese, Indian (Ayurvedic), Greek and Arabic herbal texts for disorders of the urinary and reproductive systems and as a general tonic. In several cultures it has been employed specifically to support sexual and reproductive complaints, and also for urinary ailments and inflammatory conditions. Regional uses include treatment for diarrhea in Turkey and anti-inflammatory applications in Yemen and China.
Composition & Active Compounds
Tribulus terrestris is a low, trailing herb with green, divided leaves about 2.5–5 cm long, yellow flowers and a distinctive star-shaped, spiny fruit composed of five segments. The plant is hispid (covered in coarse hairs) and reproduces rapidly by seed; fruits and leaves are the parts most commonly harvested for supplements.
Steroidal saponins, harmine-type alkaloids, flavonoids, amino acids and polysaccharides are the primary chemical groups identified in the species and are the focus of most analytical and standardization efforts.
- Steroidal saponins: triterpenoid glycosides including tigogenin, F-gitonin, desglucolanatigonin and desgalactotigonin; main phytochemical class in many preparations.
- Harmine-type alkaloids: includes tribulusterina; nitrogenous compounds present in the plant.
- Flavonoids: quercetol, kaempferol, isorhamnetin, tribuloside; polyphenolic constituents.
- Amino acids: glutamic acid, aspartic acid, amides, lignamides; basic nitrogen-containing constituents.
- Polysaccharides: ramnogalacturonan; complex carbohydrate components of the plant matrix.
Related Herbs
Properties & Effects
Traditionally, Tribulus has been used as a diuretic, anti-inflammatory and general tonic and is valued in several medical traditions for reproductive and urinary complaints.
Use for supporting libido, fertility and other androgen-related concerns is the most consistently noted application in traditional sources and investigated studies, though individual responses vary.
- Diuretic: may support increased urine flow and has been used traditionally for urinary complaints.
- Anti-inflammatory: traditionally used to ease inflammatory symptoms in regional practices and may support inflammatory conditions.
- Tonic: traditionally used as a general fortifying remedy to improve overall vitality.
- Physical performance: research suggests it may support physical performance, strength and endurance in some athletes.
- Libido: may support sexual desire and function in both men and women.
- Fertility: traditionally used and investigated for supporting aspects of male and female fertility.
- Androgen-related support: may help address symptoms associated with androgen deficiency, such as difficulty gaining lean mass or reduced vitality.
Dosage & How to Use
Typical dosages vary by preparation and form.
| Dry extract | 250–750 mg per day |
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| Standardized fluid extract | 1–2 tablespoons per day |
Safety, Side Effects & Contraindications
Tribulus terrestris is contraindicated for certain groups and should be avoided by people in those categories; specifically, it is not recommended during pregnancy or lactation and is contraindicated in hormone-dependent cancers such as prostate cancer. The herb is also contraindicated for individuals taking antidiabetic or antihypertensive medications because concurrent use may interfere with glucose or blood pressure control.
Reported adverse effects and toxicity include dizziness, weakness, nausea, palpitations, changes in breathing and cardiac stimulation; severe overdose has been associated with skin discoloration. Individual responses vary, so discontinue use and consult a healthcare professional if concerning symptoms occur.
- Pregnancy: contraindicated for use during pregnancy.
- Lactation: contraindicated while breastfeeding.
- Hormone-dependent cancers: contraindicated in hormone-dependent malignancies (e.g., prostate cancer).
- Antidiabetic treatment: contraindicated for people on antidiabetic medication due to potential interactions.
- Antihypertensive treatment: contraindicated for people taking antihypertensive drugs because of possible interactions.
Avoid use during pregnancy or breastfeeding and if you have hormone-dependent cancer; Tribulus may interact with antidiabetic and antihypertensive medications. Consult a healthcare professional before use.