Vitex Extract 225 mg by Integrative Therapeutics

If PMS is your main complaint—irritability, bloating, and especially cyclic breast tenderness—vitex (chaste tree berry) is one of the few herbs with randomized-trial support. It also fits if your cycles are irregular after stopping hormonal birth control, or if labs suggest a short luteal phase: low mid‑luteal Progesterone (the hormone that stabilizes the second half of the cycle) or mildly elevated Prolactin (the pituitary signal that can blunt ovulation). Track symptoms and, if possible, repeat Progesterone or Prolactin after 8 to 12 weeks.

Vitex acts at the pituitary, nudging dopamine receptors that quiet Prolactin release. Lower Prolactin can normalize ovulation signals and improve luteal function, which is why mid‑luteal Progesterone sometimes rises in responders. The result for many is fewer PMS symptoms and more predictable cycles. Despite old marketing, vitex is not meaningfully estrogenic; its benefits come from this prolactin–progesterone shift, not from adding plant estrogens.

Take one capsule twice daily, with or without food, at roughly the same times. Consistency matters more than timing. Most people need 2 to 3 full cycles to judge benefit; some notice changes by the second month. Reassess at three months. If pregnancy occurs, stop immediately. This standardized extract (0.5% agnusides) is a maintenance-to-therapeutic range for PMS; persistent luteal phase issues deserve clinician follow-up and repeat labs.

Avoid during pregnancy or breastfeeding, and skip if you have a known pituitary disorder or are on dopamine-active drugs like cabergoline, bromocriptine, or antipsychotics. Do not pair with hormonal contraceptives; their dosing is fixed and vitex can work against them. If you’re in fertility treatment cycles, clear vitex with your reproductive endocrinologist. New severe headaches, skin rash, or cycle changes that persist beyond three months warrant stopping and reassessment.