Tribulus
Tribulus terrestris: what the plant is, what the saponin percentage on the label means and how to read the contents of men's complexes.
This substance has no health claim authorised in the European Union. So we describe what it is and how it is taken, but do not say what it does in the body.
What it is
Tribulus (Tribulus terrestris) is an annual plant with spiny fruits that grows in warm, dry parts of Europe, Asia and Africa. Supplements use an extract of the aerial parts or the fruit.
Tribulus is common in "men's" complexes and products their makers call testosterone formulas. Tribulus has no authorised health claims in the European Union, so we do not write about hormones, strength or libido; we describe the plant and what the products contain.
How to read the label
Extracts are standardised to saponins (often 40–95 %) or to protodioscin. The percentage shows the extract's concentration and lets you compare products. Complexes usually pair tribulus with zinc, magnesium, vitamins D and B6, fenugreek and maca. Zinc, magnesium and the vitamins have authorised claims in the EU — they show on the product page when the dose is enough.
How it is taken, and precautions
Take as the pack directs, usually with a meal. Tribulus is not intended for children or for pregnant or breastfeeding women. People with kidney, liver or heart conditions or hormone-sensitive conditions, and anyone on blood-pressure or diabetes medicines, should ask a doctor first.
Frequently asked questions
What does "saponins 90 %" mean?
It is the extract's standardisation: the share of saponins in it. The higher the percentage, the more concentrated the extract.
Why don't you write about testosterone?
Tribulus has no authorised claim in the EU. The maker names the product; we describe only what is in it.
Can women take it?
Not during pregnancy or breastfeeding. Otherwise follow the pack, and ask a doctor if in doubt.
Products with tribulus
