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BOTANICALS

Chaste tree berry (extract, 3% flavones)

Chasteberry (vitex) is the best-studied herb for premenstrual symptoms like breast tenderness, irritability and mood changes.

Also known as: vitex, chasteberry, Vitex agnus-castus, Chaste tree berry extract

Who should be careful

Our safety rules leave chaste tree berry out of a formula, or keep the amount lower, with:

Medicines and supplements

• Estrogen pill
• Estrogen patch, gel, spray or pellets
• Estrogen / HRT
• Progesterone or a progestin
• Testosterone therapy
• Gender-affirming hormones: feminizing
• Gender-affirming hormones: masculinizing
• Gender-affirming hormone therapy
• GnRH medicine
• Birth control pill, patch or ring
• Progestin-only birth control
• DHEA or pregnenolone
• Fertility / IVF medicines
• Carbidopa-levodopa
• Chemotherapy or targeted cancer pills
• and 6 more

Procedures

• Egg retrieval, embryo transfer or egg freezing

Health conditions

• Active cancer
• Cancer in the past
• Breast cancer or another estrogen-sensitive cancer
• Prostate cancer
• Schizophrenia, schizoaffective disorder or psychosis
• Endometriosis, adenomyosis or fibroids

Life stage

• Pregnancy
• Breastfeeding
• Trying to conceive

Always check with your doctor or pharmacist before adding a supplement if you take medication, are pregnant or nursing, or have a health condition.

Symptoms it’s studied for

• Poor sleep
• Bloating or gas
• Skin issues (acne, dry, eczema)
• PMS or cycle symptoms
• Sugar cravings

Questions

How much chaste tree berry a day?

apiece formulas usually include 20 mg a day.

What is chaste tree berry used for?

Chasteberry (vitex) is the best-studied herb for premenstrual symptoms like breast tenderness, irritability and mood changes. In apiece it is part of formulas for Stress & resilience.*

Who should be careful with chaste tree berry?

apiece’s safety rules leave it out or limit it with: Estrogen pill; Estrogen patch, gel, spray or pellets; Estrogen / HRT; Progesterone or a progestin; Testosterone therapy; Gender-affirming hormones: feminizing; Gender-affirming hormones: masculinizing; Gender-affirming hormone therapy; GnRH medicine; Birth control pill, patch or ring and others. Check with your doctor or pharmacist if any apply to you.

Can I get chaste tree berry in a personalized supplement?

Yes. apiece builds one daily blend around your goals and, if you have them, your lab results. Chaste tree berry can be part of it at the amount listed, with every ingredient shown and never more than 10 capsules a day.

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. This page is general information, not medical advice. Check with your doctor or pharmacist before starting a supplement, especially if you take medication, are pregnant or nursing, or have a health condition. Updated 2026-10-21.