Hormone Support
Vitex (PMS)
Also known as: Chasteberry, Vitex agnus-castus, Monk's pepper
Well-researched herb for PMS symptoms, supporting progesterone and reducing prolactin.
Last reviewed June 2026 · Evidence graded from peer-reviewed research, not editorial opinion. Educational only — not medical advice.
Common questions
How much Vitex (PMS) should I take?
The typical range is 20-40mg standardized extract daily. 3-6 months for full effect
When should I take Vitex (PMS)?
Morning, empty stomach. No, empty stomach.
Which form of Vitex (PMS) is best?
Standardized extract — To agnusides. Other forms in the catalog: Tincture.
Is Vitex (PMS) safe?
Commonly reported: Headache, GI upset, Acne initially, Cycle changes. Serious warnings: May affect birth control, Not with IVF. Safe
Which Vitex (PMS) supplement scores highest?
Bluebonnet Nutrition VITEX BERRY EXTRACT, at 80/100. Scored on dose accuracy, form, label transparency and third-party testing — no brand pays to be listed or ranked.
Primary uses
- PMS symptoms
- Breast tenderness
- Cycle regulation
- Mood (luteal)
How it works
- Supports progesterone in luteal phase
- Reduces prolactin
- Regulates LH/FSH
- Takes 3+ cycles for effect
Dosage
- Typical range
- 20-40mg standardized extract daily
- Timing
- Morning, empty stomach
- With food
- No, empty stomach
- Duration
- 3-6 months for full effect
- Special populations
- PMS, luteal phase symptoms, breast tenderness
Forms
- Standardized extract
- Tincture
Safety
Common side effects
- Headache
- GI upset
- Acne initially
- Cycle changes
Contraindications
- Pregnancy
- Hormone-sensitive cancers
- IVF/fertility treatments
Products containing Vitex (PMS)
Top-scoring supplements in our catalog that list Vitex (PMS) on the label. Each product is graded on Formulate's ingredient-level rubric — dose accuracy, form, transparency, and third-party testing.
Evidence notes
Strong evidence for PMS symptom reduction
Grade A: Multiple well-designed human trials support the main claims.
Related in Hormone Support
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Medical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider. Individual needs and risks vary — consult a professional before starting, stopping, or combining supplements, especially if you are pregnant or nursing, taking medication, or managing a health condition.