Vitex (PMS)

Hormone Support

Also known as: Chasteberry, Vitex agnus-castus, Monk's pepper

Grade A

💊 20-40mg standardized extract daily🎯 4 primary uses🔗 3 synergies⚠️ Review warnings

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Levels upStress & Mood+50 pts

Overview

Well-researched herb for PMS symptoms, supporting progesterone and reducing prolactin.

Primary Uses

PMS symptomsBreast tendernessCycle regulationMood (luteal)

Frequently Asked About Vitex (PMS)

How much Vitex (PMS) should I take?

The typical effective range is 20-40mg standardized extract daily. Individual needs vary based on age, body weight, diet, and goals — start at the lower end and adjust based on response. Always consult a healthcare provider before starting a new supplement.

When is the best time to take Vitex (PMS)?

Morning, empty stomach. Consistency matters more than perfect timing — pick a daily anchor (e.g. with breakfast or before bed) and stick with it.

Should I take Vitex (PMS) with food?

No, empty stomach.

Does Vitex (PMS) interact with medications?

Yes — known interactions include Birth control (may reduce efficacy) and Dopamine agonists. If you take any prescription medication, talk to your doctor or pharmacist before starting Vitex (PMS).

What does Vitex (PMS) pair well with?

Vitex (PMS) stacks well with Vitamin B6, Magnesium, and Evening Primrose Oil — these combinations either improve absorption or work synergistically toward common goals.

Who should not take Vitex (PMS)?

Vitex (PMS) should be avoided or used with caution by people with Pregnancy, Hormone-sensitive cancers, and IVF/fertility treatments. Pregnant or breastfeeding women should consult a healthcare provider before use.

What are the side effects of Vitex (PMS)?

Most people tolerate Vitex (PMS) well. The most commonly reported side effects are Headache, GI upset, and Acne initially. Side effects are usually dose-dependent — lowering the dose often resolves them.

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

Research & Studies

Search the literature now

We haven’t curated landmark studies for Vitex (PMS)yet — one-click into the primary literature here. PubMed (RCTs) is usually the highest-signal starting point.

Search Vitex (PMS) research

PubMed (RCTs) ↗Randomized trials PubMed (all) ↗Full literature Cochrane Reviews ↗Systematic reviews Examine.com ↗Research summaries

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Mechanism of Action

• Supports progesterone in luteal phase
• Reduces prolactin
• Regulates LH/FSH
• Takes 3+ cycles for effect

Evidence Quality

Evidence Grade A

Strong evidence for PMS symptom reduction

Safety & Contraindications

Serious Warnings

• May affect birth control
• Not with IVF

Contraindications

• Pregnancy
• Hormone-sensitive cancers
• IVF/fertility treatments

Common Side Effects

• Headache
• GI upset
• Acne initially
• Cycle changes

Pregnancy & Breastfeeding

Avoid in pregnancy, galactagogue for breastfeeding

Liver & Kidney Notes

Safe

Interactions

💊 Medications

• Birth control (may reduce efficacy)
• Dopamine agonists

🧪 Supplements

• B6, Magnesium for PMS

🍽️ Food & Alcohol

• Empty stomach AM

Stacking & Synergies

Pairs Well With

Vitamin B6 ↗Magnesium ↗Evening Primrose Oil ↗

Avoid Combining With

Birth control (may reduce)IVF treatments

Best Goal Synergies

PMS reliefCycle regularity

Buying Guide

What to Look For

• Standardized to agnusides
• Quality extract

Standardization Markers

Agnuside content

Adulteration risk

Low

Practical Notes

• Takes 3+ cycles for effect
• Morning empty stomach
• May worsen before better initially

Related Guides

In-depth guides covering Vitex (PMS) — protocols, comparisons, and use cases.

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Last reviewed: September 2026 by the Formulate Research Team. Sources cited above; methodology and scoring criteria published here.

Cite this page

Formulate Research Team. (2026, September). Vitex (PMS) — Evidence-Based Supplement Guide. Formulate Supplement Encyclopedia. https://app.formulate-health.app/learning/supplements/vitex-pms

Educational content based on published research and our scoring methodology. Not medical advice — consult a qualified healthcare provider before starting, stopping, or changing supplements, especially if you take medications, are pregnant, or have a medical condition.