Vitex (Chasteberry) (Vitex agnus-castus)

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Vitex (Chasteberry)

穗花牡荆 (Suì Huā Mǔ Jīng) · Vitex agnus-castus

The leading herb for PMS and menstrual irregularity. Works by modulating prolactin and progesterone levels. Strong clinical evidence from European phytotherapy tradition.

Evidence Score
7/10
Good Evidence
Safety
Safe for most adults

Good For

Key Benefits

May support hormonal balance

Traditionally used for menstrual health and reproductive wellness

How to Take

Typical dose: Follow product label directions. Typical range: 500-1500mg daily as standardized extract
Forms: capsule, powder, tea/decoction
Timing: Take with food unless otherwise directed. Allow 2-4 weeks for full effects with tonic herbs
Start with lower doses and increase gradually. Quality and standardization vary between brands.

Safety & Interactions

Possible Side Effects

  • Generally well tolerated at recommended doses
  • Mild digestive upset possible in sensitive individuals

Do Not Use If

  • Known allergy to this plant or related species
  • Consult healthcare provider if pregnant or nursing

Drug Interactions

  • No major drug interactions documented at standard doses
  • Inform your doctor of all supplements you take

Traditional Use

In Traditional Chinese Medicine, 穗花牡荆 (Suì Huā Mǔ Jīng) has been used for centuries. It nourishes blood and supports the liver's role in regulating menstruation according to TCM theory.

Modern Research

Moderate research exists for this herb, including some clinical trials and substantial preclinical data. While not as extensively studied as top-tier herbs, the evidence supports several traditional uses. More human trials would strengthen the evidence base.

View all studies on PubMed for Vitex agnus-castus

Where to Buy

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