Vitex Agnus-Castus
A key herb for female hormonal balance and reproductive health.
Also known as: Chaste Tree Berry • Chasteberry • Monk's Pepper
Overview
Vitex agnus-castus, commonly known as Chaste Tree Berry, is a popular herbal supplement used for centuries to address a wide range of women's health issues. It is particularly known for its ability to modulate hormones, especially prolactin and progesterone, helping to regulate menstrual cycles, alleviate PMS symptoms, and support fertility.
Key Benefits
Eases PMS Symptoms
Effectively reduces PMS symptoms like breast tenderness, irritability, mood swings, and bloating.
Regulates Menstrual Cycles
Helps normalize irregular periods and restore a healthy cycle, particularly after stopping birth control pills.
Supports Fertility
May improve fertility by balancing hormones and promoting regular ovulation.
Alleviates Menopausal Symptoms
Can help manage some menopausal symptoms like hot flashes and sleep disturbances.
Dosage & How to Take
Dosage depends on the form and concentration. Follow product-specific recommendations.
| Purpose | Dose | Notes |
|---|---|---|
| PMS Relief | 20-40 mg/day extract | Standardized to 0.5% agnuside. |
| Cycle Regulation | 250-500 mg/day dried berry | Consistent daily use is key. |
Best Time to Take
Best taken once daily in the morning, as it may influence pituitary gland activity.
With or Without Food
Can be taken with or without food, but taking it with breakfast can help with routine.
Forms & Bioavailability
| Form | Absorption | Best For | Notes |
|---|---|---|---|
| Standardized Extract | High | Targeted PMS and hormonal support | Ensures a consistent amount of active compounds like agnuside. |
| Dried Berry Powder | Moderate | General wellness and cycle support | A whole-herb form that is less concentrated. |
Side Effects & Safety
Common
- Nausea
- Headache
- Upset stomach
- Menstrual changes (initially)
Rare
- Rash or itching
- Acne
- Insomnia
Contraindications
- Pregnancy and breastfeeding
- Hormone-sensitive cancers
- Use of hormonal contraceptives or HRT
- Parkinson's disease medications
Interactions
May decrease the effectiveness of hormonal contraceptives.
May interfere with medications for Parkinson's or psychiatric conditions.
Scientific Research
Treatment of Premenstrual Syndrome with a Phytopharmaceutical Formulation Containing Vitex agnus-castus
A significant reduction in PMS symptoms was observed in women taking a Vitex agnus-castus preparation.
Food Sources
Products With Vitex Agnus-Castus
3 products in our database contain this ingredient
Frequently Asked Questions
Medical Disclaimer
This content is for educational and informational purposes only and is not intended as medical advice. Always consult with a qualified healthcare professional before starting any supplement regimen, especially if you have pre-existing health conditions or are taking medications. The statements on this page have not been evaluated by the Food and Drug Administration.