Holistic Health Supplements The Health Benefits of Vitex What Studies Say About Vitex for Hormonal Balance By Cathy Wong facebook twitter Cathy Wong is a nutritionist and wellness expert. Her work is regularly featured in media such as First For Women, Woman's World, and Natural Health. Learn about our editorial process Cathy Wong Medically reviewed by Medically reviewed by Richard N. Fogoros, MD on June 30, 2019 facebook linkedin Richard N. Fogoros, MD, is a retired professor of medicine and board-certified internal medicine physician and cardiologist. Learn about our Medical Review Board Richard N. Fogoros, MD Updated on November 21, 2019 Print Verywell / Anastasia Tretiak Table of Contents View All Table of Contents Health Benefits Possible Side Effects Dosage and Preparation What to Look For Vitex (Vitex agnus-castus) is a plant used in herbal medicine. Also known as chaste tree or chasteberry, it's often taken as a remedy for women's health problems. Vitex supplements typically contain extracts of the fruit and/or seed of the plant. Vitex may influence hormone levels in a number of ways. For example, it's said to promote the release of luteinizing hormone and, in turn, increase levels of progesterone (a hormone known to play a key role in regulating the menstrual cycle). Vitex is also thought to affect levels of prolactin, which is involved in stimulating breast development and milk production in women. Health Benefits Vitex has a long history of use as a folk remedy for a range of female conditions, such as post-partum hemorrhage and to help with the "passing of afterbirth." The name "chaste tree" comes from the belief in folk medicine that it could suppress libido. In alternative medicine, vitex is frequently used in treatment of the following issues: Premenstrual syndrome (PMS) Acne Fibrocystic breast disease Infertility in women Heavy menstrual periods Menopausal symptoms Benign prostatic hyperplasia Migraines Joint conditions In addition, vitex is said to increase production of breast milk. Although there's a lack of large-scale clinical trials testing the effects of vitex, some research suggests that the herb may protect against certain health conditions. Here's a look at several potential health benefits of vitex: Premenstrual Syndrome For a report published in the journal Planta Medica in 2013, researchers reviewed 12 previously published clinical trials investigating the effects of vitex on women's health. Despite some limitations within the reviewed trials, the results indicated that vitex may be beneficial in the treatment of premenstrual syndrome. In a more recent study (published in Advances in Therapy in 2014), taking vitex once daily for three menstrual cycles appeared to reduce the intensity of premenstrual symptoms such as bloating, irritability, headache, and skin problems. The study involved 60 women, ages 18 to 44. Menopausal Symptoms In a research review published in the Journal of Alternative and Complementary Medicine in 2009, scientists found some evidence that vitex may alleviate menopausal symptoms. However, the review's authors note that there is currently a lack of rigorous clinical trials testing vitex's effects in menopausal women. Infertility A nutritional supplement containing a blend of vitex, green tea, L-arginine, vitamins (including folate), and minerals may help improve fertility in women, suggests a study published in Clinical and Experimental Obstetrics & Gynecology in 2006. The study involved 93 women (ages 24 to 42) who had tried unsuccessfully to conceive for six to 36 months. Three months into the study, 26 percent of the study members treated with the vitex-containing supplement had become pregnant (compared to just 10 percent of those given a placebo). This finding indicates that nutritional supplements could provide an alternative or adjunct to conventional fertility therapies, according to the study's authors. Possible Side Effects Vitex may trigger a number of side effects including; bleeding between menstrual periods, dry mouth, hair loss, headache, itching, mild digestive upset, nausea, rapid heartbeat, and skin rash. Use of vitex should be avoided by pregnant or nursing women. In addition, people with hormone-sensitive conditions (such as endometriosis, uterine fibroids, and cancers of the breast, ovaries, or prostate) shouldn't take vitex. Because vitex may influence levels of the neurotransmitter dopamine, individuals with Parkinson's disease, schizophrenia, or any other condition in which dopamine levels are affected should avoid vitex (unless under the supervision of a qualified health professional). In addition, there's some concern that vitex may decrease the effectiveness of oral contraceptives or hormone replacement therapy. Verywell / Anastasia Tretiak Dosage and Preparation There is not enough scientific evidence to establish a recommended dose of vitex or chasteberry. Different doses have been studied in research studies investigating the herb's effect on various conditions. The right dose for you may depend on various factors including your age, medical conditions, and the specific formulation (extract) used. Speak to your healthcare provider to get personalized advice. What to Look For Vitex is most often sold in capsule form. You'll find it in many health food stores and online. In addition, to chasteberry and chastetree, vitex may also be called monk’s pepper, lilac chastetree in health food stores. If you choose to buy a vitex supplement (or any herbal medication or supplement), the National Institutes of Health (NIH) recommends that you look for a Supplement Facts label on the product that you buy. This label will contain vital information including the amount of active ingredients per serving, and whether or not other ingredients have been added, such as fillers, binders, and flavorings. Also, the organization suggests that you look for a product that contains a seal of approval from a third party organization that provides quality testing. These organizations include U.S. Pharmacopeia, ConsumerLab.com, and NSF International. A seal of approval from one of these organizations does not guarantee the product's safety or effectiveness but it does provide assurance that the product was properly manufactured, contains the ingredients listed on the label, and does not contain harmful levels of contaminants. Was this page helpful? Thanks for your feedback! Sign up for our Health Tip of the Day newsletter, and receive daily tips that will help you live your healthiest life. Sign Up You're in! Thank you, {{form.email}}, for signing up. There was an error. Please try again. What are your concerns? Other Inaccurate Hard to Understand Submit Article Sources Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy. Natural Standard. Natural Standard Herb & Supplement Guide - E-Book An Evidence-Based Reference. St Louis: Elsevier Health Sciences; 2016. Die MV, Burger H, Teede H, Bone K. Vitex agnus-castus Extracts for Female Reproductive Disorders: A Systematic Review of Clinical Trials. Planta Medica. 2012;79(07):562-575. doi:10.1055/s-0032-1327831. Momoeda M, Sasaki H, Tagashira E, Ogishima M, Takano Y, Ochiai K. Efficacy and Safety of Vitex agnus-castus Extract for Treatment of Premenstrual Syndrome in Japanese Patients: A Prospective, Open-label Study. Advances in Therapy. 2014;31(3):362-373. doi:10.1007/s12325-014-0106-z. Van die MD, Burger HG, Teede HJ, Bone KM. Vitex agnus-castus (Chaste-Tree/Berry) in the treatment of menopause-related complaints. J Altern Complement Med. 2009;15(8):853-62. doi:10.1089/acm.2008.0447 Westphal LM, Polan ML, Trant AS. Double-blind, placebo-controlled study of Fertilityblend: a nutritional supplement for improving fertility in women. Clin Exp Obstet Gynecol. 2006;33(4):205-8. Daniele C, Thompson coon J, Pittler MH, Ernst E. Vitex agnus castus: a systematic review of adverse events. Drug Saf. 2005;28(4):319-32. doi:10.2165/00002018-200528040-00004 Office of Dietary Supplements. Dietary Supplements: What You Need to Know. Updated June 17, 2011.