Use this calculator to plan how many Gaia Herbs Vitex Berry capsules and bottles you’ll need for a given time period, and see the estimated cost based on the current 60-count bottle price.
Vitex (Chasteberry) Dosage & Cost Calculator
Based on the labeled dose options for Gaia Herbs Vitex Berry 1000mg and the published 60-count bottle at $38.69.
Estimate only – based on the current listed price of the 60-count Gaia Herbs Vitex Berry 1000mg bottle. Actual Amazon price can change; check the live price before buying.
Why no height/weight input? Unlike per-kg supplements (creatine, protein), Vitex (Chasteberry) has no published bodyweight-adjusted dosing in the research behind it. This calculator doesn't fabricate a per-kg formula that doesn't exist in the literature.
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This product’s label directs 2 capsules once daily in the morning (1,000 mg total of vitex berry extract), with benefits typically building over about 2 months of consistent use.
One of the most-cited vitex trials is a randomized, double-blind, placebo-controlled study of 178 women with PMS, published in BMJ, which used a specific concentrated extract (Ze 440) at just 20 mg/day and found significant improvement across five symptom clusters (irritability, mood, anger, headache, and breast fullness) versus placebo [1]. We want to be direct about how different that is from this product: 20 mg of a standardized concentrated extract is not the same thing as 1,000 mg of this product’s whole-berry extract — the concentration ratios aren’t comparable, so this citation reflects vitex research generally, not a dose-matched validation of this specific product.
As with the other calculators on our network, there’s no published bodyweight-adjusted dosing for vitex, so this tool plans by a fixed daily amount rather than your height or weight.