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Agnus castus extract, commonly known as Vitex agnus-castus, is made from the chaste tree’s fruit. This plant belongs to the Verbenaceae plant family’s largest genus, Vitex, which has about 250 species worldwide. Nonetheless, the most often used species of vitex for medical purposes is Vitex agnus-castus. This extract is mostly derived from the peppercorn-sized fruit of the chaste tree. There are other names for this fruit as well, such as “monk’s pepper” or “chasteberry”. The name “chaste tree” comes from historical connotations with dwindling male libido in the Middle Ages; this usage also gave rise to the nickname “monk’s pepper.”

agnus castus extract

A variety of chaste tree plant components, especially its fruit, have been used as herbal treatments to treat a variety of ailments. With its historical and modern uses, agnus castus extract is used in complementary and alternative medicine and may be able to help with a wide range of medical issues.


Agnus castus extract, which comes from the Vitex agnus-castus plant, may offer a number of health benefits such as:

  • May relieve menopause symptoms: Agnus castus has hormone-balancing properties that may help reduce menopausal symptoms. When vitex oils were given to twenty-three menopausal women in a study, the women’s menopausal symptoms—such as improved mood and sleep—were observed to improve. Women even resumed their menstrual cycles in certain instances. 52 pre- and postmenopausal women who used a vitex cream were included in another trial, and the results showed considerable improvements in 33% of the cases, and moderate alleviation in 36% of cases, from symptoms like hot flashes and night sweats. It’s important to remember, though, that these advantages haven’t always been noted in studies. In a recent double-blind, randomised, controlled experiment, the combination of vitex and St. John’s wort did not reduce menopausal symptoms any more than a placebo; this underscores the need for additional research.
  • May enhance fertility: Agnus castus extract has the potential to improve female fertility, especially when elevated prolactin levels are an issue. Women who have high levels of prolactin, which are frequently linked to luteal phase problems, may find it challenging to conceive. Agnus castus is just as effective as prescription medications at lowering prolactin levels, according to studies. Vitex usage was associated with decreased prolactin levels and longer menstrual phases in women with luteal phase abnormalities; similar advantages were not seen in the placebo group. In a different study, women taking an agnus castus supplement showed better hormone balance and a significant rise in pregnancy rates when compared to the placebo group.
    aids fertility: benefit of agnus castus
  • May relieve Premenstrual relief (PMS): It has also demonstrated potential in reducing premenstrual syndrome symptoms (PMS). The days or weeks preceding menstruation are when mental and physical symptoms of PMS, a prevalent disorder, manifest. Agnus castus may help lessen PMS symptoms like headaches, irritability, mood swings, breast tenderness, and bloating, according to studies. It is thought to work by affecting hormone levels and controlling the menstrual cycle. Agnus castus, which is frequently seen as a natural substitute for hormonal or pharmacological therapy for PMS alleviation, is thought to have benefits and mechanisms that warrant more study. Individual answers, like with other applications, may differ, so it’s best to speak with a healthcare provider for advice on the usage of Agnus Castus for PMS Symptoms management.

It’s important to understand that certain research employ supplements that blend Agnus castus with other herbs, which makes it difficult to determine the effects of Agnus castus on its own. Agnus castus extract has the potential to improve fertility and alleviate menopausal symptoms, although individual reactions may differ. Further study is required to completely comprehend the advantages and mechanisms of action of this extract. It is advisable to speak with a healthcare provider, especially for those who have specific health problems or are trying to deal with menopausal symptoms or infertility.


When ingested, agnus castus extract works with the body via a variety of bioactive substances. The hypothalamus and pituitary glands, two important endocrine system organs that produce and regulate hormones, are thought to be the primary targets of this herbal remedy’s effects on hormonal balance and function. This extract acts by affecting the release and synthesis of specific hormones, most notably prolactin, which is produced by the pituitary gland and has a variety of impacts on the female reproductive system. It is believed to inhibit hyperprolactinemia, a disorder that can interfere with conception and cause irregular menstruation cycles.

Agnus castus may help restore hormonal balance by lowering excessive prolactin levels, which in some cases might result in regular menstrual periods and enhanced fertility. Agnus castus may also affect the amounts of other hormones that are important for controlling the menstrual cycle and ovulation, such as luteinizing hormone (LH) and follicle-stimulating hormone (FSH). It may improve the likelihood of a successful conception and help maintain a more regular menstrual cycle by regulating these hormones.

follicle stimulation hormone (FSH): enhanced by Agnus Castus extract

Although research into the exact mechanisms of agnus castus in the human body is still ongoing, it is believed to function by regulating important hormonal pathways. For this reason, it is a useful tool for managing premenstrual symptoms, improving fertility, and addressing issues related to irregular menstruation. Individual reactions may differ, so consulting a healthcare provider is the best way to determine how to use agnus castus, especially for people who have unique health issues or specific fertility goals.


Several individual traits, such as age, medical problems, and the particular formulation or extract used, might affect the recommended dosage of agnus castus, commonly known as vitex or chasteberry. To be sure the supplement and dosage are appropriate for your particular needs, it is important that you consult a healthcare professional before starting a supplement routine. Although a universally suggested dose of agnus castus is not yet established by sufficient scientific data, daily doses between 4 and 40 milligrammes (mg) are widely utilised in practise. Research studies that have looked at the herb’s impact on different conditions have looked at different dosages, which reflects the variety of applications.

However, it is important to read the supplement fact labels and comprehend the product’s composition, as an individual’s unique health concerns may affect the recommended dosage. In addition, medical professionals can offer tailored guidance depending on a patient’s objectives and current state of health, making sure the dosage selected suits their unique requirements.


Agnus Castus Extract is also available as:

  • Agnus Castus Extract 0.5% Agnusides (Chasteberry) (Vitex agnus castus)
  • Agnus Castus Extract 10:1 (Chasteberry) (Vitex agnus castus)
  • Agnus Castus Extract 10:1 1% Agnusides (Chasteberry) (Vitex agnus castus)
  • Agnus Castus Extract 4:1 (Chasteberry) (Vitex agnus castus)
  • Agnus Castus Powder (Chasteberry) (Vitex agnus castus)

Agnus Castus Extract is commonly available in:

  • Agnus Castus Extract tablets
  • Agnus Castus Extract capsules
  • Agnus Castus Extract powder
  • Black Elderberry liquid extract

Glentworth Formulations is here to suit your every need. Everything from Tablets, Capsules and Powder blends.

If you are wanting to know more information, please get in contact with us. Either using the contact form or contacting us directly on:

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