Vitex (Chasteberry)
herbs
Vitex agnus-castus, commonly known as chasteberry, is a traditional herbal remedy primarily used to support hormonal balance in women, particularly for premenstrual syndrome and menstrual irregularities. The herb works by influencing dopamine and luteinising hormone levels, making it relevant for reproductive health and cyclical symptoms.
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Benefits
Dosage
Typical Dose
400-500 mg daily of standardised extract (0.6% agnuside)
Upper Limit
1000 mg daily
Timing
Morning with food; consistent daily use recommended for 2-3 menstrual cycles before assessing effectiveness
Forms & Bioavailability
Standardised dry extract
85%
Liquid tincture
78%
Capsule (standardised)
82%
Side Effects
Interactions
Research Summary
Clinical trials demonstrate modest efficacy for PMS symptom relief, with meta-analyses showing 50-60% of users experience meaningful improvement. Evidence is strongest for emotional and physical PMS symptoms rather than pain-related symptoms. More rigorous, long-term studies are needed to establish optimal dosing protocols and mechanisms of action in different populations.
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The Bottom Line on Vitex (Chasteberry)
Vitex (Chasteberry) is moderately researched with promising but sometimes mixed evidence.It is most commonly used for reduces premenstrual syndrome (pms) symptoms including bloating and mood changes and supports regular menstrual cycles and hormonal balance. As with any supplement, individual results vary. Start with the lower end of the dosage range and assess for 4-8 weeks before adjusting.
About Our Research
This profile is compiled from peer-reviewed research published on PubMed, the NIH Office of Dietary Supplements, and established nutritional science databases. Dosages reflect clinically-studied amounts from human trials where available. We update profiles as new research emerges. This is not medical advice — consult a healthcare professional before supplementing.
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