Hormone Support

Vitex (Chasteberry)

Also known as: Chaste tree berry, Vitex agnus-castus, Chasteberry, Monk's pepper

Evidence

Well-researched herb for women's hormonal balance, PMS, and cycle regulation.

Primary uses

PMS symptoms
Cycle regulation
Progesterone support
PCOS (some)

How it works

Acts on pituitary to support progesterone
Dopaminergic effects
Reduces prolactin
Regulates LH/FSH ratio

Dosage

Typical range: 20-40mg standardized extract or 160-240mg dried berry equivalent
Timing: Morning, before breakfast
With food: No, empty stomach preferred
Duration: 3-6 months for full effect
Special populations: Women with PMS, irregular cycles, luteal phase issues

Forms

Standardized extract
Tincture
Dried berry

Safety

Common side effects

Headache
GI upset
Acne (initially)
Cycle changes

Contraindications

Pregnancy
Hormone-sensitive cancers
IVF/assisted reproduction

Evidence notes

Strong evidence for PMS and cycle regulation

Grade A: Multiple well-designed human trials support the main claims.

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Medical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider.