Last verified: 44 days ago
Vitex Berry
Also known as: Chaste Tree Berry, Chasteberry, Vitex agnus-castus, Monk's Pepper, Abraham's Balm
Evidence under review. — Not yet rated
Herbal berry used for PMS and cycle support, but clinical evidence is limited and inconsistent.
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What it does
Vitex berry comes from the chaste tree, a shrub native to the Mediterranean. It is traditionally used to ease PMS symptoms like breast tenderness, mood swings, and irregular periods by influencing...
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Evidence quality
Evidence base hasn't been formally rated yet. See research below.
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Clinical dose
20-40 mg standardized extract or 160-240 mg dried fruit daily (traditional/general use; no confirmed dose from provided studies)
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Found in
What the Science Says
Vitex berry comes from the chaste tree, a shrub native to the Mediterranean. It is traditionally used to ease PMS symptoms like breast tenderness, mood swings, and irregular periods by influencing dopamine receptors and indirectly affecting prolactin levels. Most support comes from small or older clinical trials and traditional use — no papers were available to confirm strong clinical evidence for any specific benefit.
What It Doesn't Do
Not a proven hormone replacement. Won't balance estrogen or progesterone directly — it doesn't contain hormones. No solid evidence it boosts fertility on its own. Not a treatment for PCOS, endometriosis, or menopause. Don't expect fast results — traditional use suggests weeks to months before any effect.
Evidence-Based Benefits
Vitex berry comes from the chaste tree, a shrub native to the Mediterranean. It is traditionally used to ease PMS symptoms like breast tenderness, mood swings, and irregular periods by influencing dopamine receptors and indirectly affecting prolactin levels. Most support comes from small or older clinical trials and traditional use — no papers were available to confirm strong clinical evidence for any specific benefit.
Weak EvidenceEffective at: 20-40 mg standardized extract or 160-240 mg dried fruit daily (traditional/general use; no confirmed dose from provided studies)
Source: auto-research
Absorption & Bioavailability
Unknown — no pharmacokinetic data was available from the provided studies. Active compounds (agnusides, flavonoids) are assumed to be orally absorbed, but absorption rates are not well characterized.
Red Flags to Watch For
- Can interact with hormonal contraceptives and hormone-sensitive medications — consult a doctor before use
- Not safe during pregnancy; may stimulate uterine contractions
- May interfere with dopamine-related medications (e.g., antipsychotics, Parkinson's drugs)
- Standardization varies widely between products — 'Vitex berry' on a label tells you little about actual active compound content
- No papers were provided to verify any specific clinical claims made by supplement brands
Products Containing Vitex Berry
See how Vitex Berry is used in these analyzed products:
Research Sources
- General knowledge
This information is for educational purposes only and is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Last updated: 2026-04-08