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Herbal Monograph: Chaste Tree (Vitex agnus-castus)

Common Names:

  • Chaste Tree

  • Chasteberry

  • Monk's Pepper

  • Vitex

Botanical Name:

  • Vitex agnus-castus


  • Lamiaceae (Mint family)

Overview: Chaste Tree, scientifically known as Vitex agnus-castus, is a popular herbal remedy with a long history of use in traditional medicine systems, including traditional European and Mediterranean herbalism. This herb is renowned for its potential to support women's health by balancing hormonal activity, particularly in cases of premenstrual syndrome (PMS), irregular menstruation, and menopausal symptoms. Chaste Tree is also used to address various other health concerns and is often referred to as "the women's herb."

Botanical Description:

  • Plant: Chaste Tree is a deciduous shrub or small tree that can reach heights of up to 15 feet. It features palmate leaves with finger-like leaflets and produces clusters of fragrant, lilac-colored flowers.

  • Fruit: The fruit of Chaste Tree, resembling small peppercorns, is the part of the plant used for herbal remedies. These fruits are dark purple to black when ripe.

Traditional Uses: Chaste Tree has been traditionally used for a variety of purposes, including:

  1. Women's Health: It is particularly known for its potential to regulate the menstrual cycle, alleviate PMS symptoms (such as irritability and breast tenderness), and ease menopausal complaints.

  2. Hormonal Balance: Chaste Tree is believed to influence the balance of reproductive hormones, particularly by acting on the pituitary gland, which indirectly affects the ovaries.

  3. Fertility Support: Some traditional uses include aiding in female fertility by promoting regular ovulation.

  4. Breast Health: It has also been used historically for breast health concerns.

Active Constituents: Chaste Tree contains a variety of bioactive compounds, including:

  • Diterpenes: The most notable compounds are the diterpenes, such as agnuside and aucubin, which are believed to be responsible for Chaste Tree's hormonal effects.

  • Flavonoids: These compounds contribute to the herb's antioxidant properties.

Preparation and Usage: Chaste Tree can be prepared and used in various forms, including:

  • Dried Fruit: The dried Chaste Tree fruit can be used to make herbal teas, tinctures, or capsules.

  • Tinctures: Liquid extracts of Chaste Tree are available and offer a convenient way to incorporate the herb into your daily routine.

  • Capsules or Tablets: Standardized Chaste Tree supplements are also available, ensuring consistent dosages.

Precautions and Considerations:

  • Consult a healthcare professional before using Chaste Tree, especially if you are pregnant, nursing, taking medications, or have underlying health conditions.

  • Chaste Tree is generally considered safe when used at recommended dosages, but it may take several months for its effects to become evident, so patience is required.

  • Side effects are usually mild and can include digestive discomfort or skin reactions.

Chaste Tree is a respected herbal remedy that has been used for centuries to support women's health and hormonal balance. As with any herbal remedy, it's advisable to seek guidance from a qualified healthcare practitioner for personalized advice, especially if you have specific health concerns.

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The herbalist, chemist, and medicine maker at Asili Apothecary, Gloria created this space to facilitate healing and learning for yourself and those around you. The apothecary and homestead is based in Fayetteville, NC. Gloria enjoys time with her family and Mother Nature.

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