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Why this ranks #4 for irritability
Because it wins- Evidence fitChasteberry (Vitex) is the strongest evidence signal for this outcome.
- Dose fitChasteberry (Vitex) at 400 mg lands inside the studied 20-800 mg window.
- Price / serving$0.08 per serving — low price tier for this outcome.
- AvailabilityIn stock across major retailers; 99% availability confidence.
- TrustStrong trust signals — consistently high marks from verified buyer ratings.
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