Marjoram
A culinary herb tested once, as a tea, in women with PCOS. One small pilot study is not a basis for treating a hormonal disorder.
Evidence last reviewed: August 2026
What the science says
- Hormone markers in PCOS Limited evidence
A randomized controlled pilot study of marjoram tea in women with polycystic ovary syndrome reported improvements in insulin sensitivity and a reduction in adrenal androgen levels. It enrolled 25 women over one month and was explicitly framed as a pilot.
- Menstrual regularity or ovulation Limited evidence
No trial has measured whether marjoram affects cycle regularity, ovulation or fertility in PCOS. The existing data stop at blood markers.
Dosage & safety
Studied doseThe pilot study used 2 g of dried marjoram brewed as a tea twice daily for one month. Capsule doses on the market are not based on any trial.
SafetySafe as a culinary herb. Concentrated extracts and essential oil are not the same thing, and marjoram essential oil should never be swallowed. Traditional use as an emmenagogue means it should be avoided in pregnancy; possible effects on blood clotting warrant caution before surgery.
Scientific references
Where to buy
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