Integrative Therapeutics Vitex Extract - Period Care Supplement for Premenstrual Support* - Menstrual Supplement for Women* - Vegan, Gluten-Free & Dairy-Free - 60 Capsules (60 Servings)

Clinical trials typically use Vitex clinical studies use 20–40mg standardized extract or 160–400mg dry herb daily; 0.5% agnusides standardization is the key quality marker. IT Vitex Extract delivers 1 capsule per serving (60 capsules, 60 servings), which we classify as Traditional relative to that range.

See the "Also consider" section below for two alternatives. Choose based on form preference (Capsule vs alternatives), dose adequacy, and third-party testing.

Yes — GMP Certified. Third-party testing verifies ingredient identity and label accuracy.

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Vitex may interact with hormone-modulating medications including oral contraceptives, hormone replacement therapy, and dopamine antagonist medications (anti-nausea, antipsychotics). Do not combine with medications that affect dopamine signaling without medical supervision. Also avoid if taking fertility medications, as vitex modulates prolactin and LH.

Vitex is generally well tolerated in long-term clinical studies up to 3+ months. Rare side effects include mild acne, headache, nausea, or digestive upset, particularly in the first month. Very rarely, increased menstrual flow has been reported. Long-term use beyond 6 months should be guided by a healthcare provider.

Mild GI discomfort is occasionally reported in the first 1–2 weeks of vitex use as the body adjusts to the hormonal-pathway effects. Most users in the 85-review pool tolerate it well at 4.7 stars. Taking with a light meal can reduce any early GI sensitivity.

Vitex combines well with magnesium, B6, and evening primrose oil in PMS support protocols — a combination used in some clinical practice guidelines. Avoid stacking with other hormone-modulating botanicals (black cohosh, red clover, DIM) without practitioner guidance to prevent compound hormonal effects.

Take 1 capsule daily, typically in the morning on an empty stomach — some protocols recommend taking first thing in the morning to align with natural hormonal rhythms. Not for use during pregnancy or by those with hormone-sensitive conditions. Use consistently across multiple menstrual cycles for full effect.

Vitex clinical research consistently shows that meaningful PMS and menstrual cycle benefits emerge after 2–3 menstrual cycles of consistent daily use — approximately 8–12 weeks. Patience is required: users who stop after 4 weeks often miss the peak benefit window. Some women notice improvements in cycle regularity within the first cycle.