Dr Julie Durnan

Nature’s Superstar for Female Health: Chasteberry

Chaste TreeHealthy hormone levels are necessary if we want to feel our best, physically, mentally, and emotionally. Chaste tree is one of my all time favourite herbs used in the treatment and support of women’s health concerns. This single herb is a powerful tonic and in it’s natural form, can help women to balance their hormones, reduce PMS symptoms, and for many women, help to reclaim their lives.

Botanical latin name: Vitex agnus-castus
Also known as: Chasteberry, Chaste Tree, Monk’s Pepper
Parts used: Berry

Usually when people think of herbs, they think of the leafy stems planted in tiny pots atop kitchen windowsills. But Vitex agnus castus is actually a tree with beautiful purple flowers. Also known as Chaste tree, this species has multiple trunks and can easily grow to 10 or 20 feet tall.

Chaste tree’s berries are known for their powerful female tonic activity and clinical studies have shown Chasteberry to be effective at reducing symptoms of PMS – cramping, bloating, breast pain; increasing progesterone, and regulating the menstrual cycle.

Because symptoms of estrogen dominance are so common these days – spotting, long cycles, PMS, I often recommend Chaste tree at my clinic. It is my favourite herb for women’s health and improvements in gynecological concerns can be seen sometimes in only a few weeks (for best results, wait at least three months).

Here’s what Chaste tree does:
Increases progesterone levels naturally
Improves PMS symptoms such as: breast tenderness, swelling, water retention, cramping, irritability, low mood
Reduces heavy flow
Eliminates spotting
Triggers ovulation
Heals acne
Inhibits prolactin
Regulates menstrual cycle length

The therapeutic dose of Chaste tree is 250mg to 500mg daily. It can be dosed as a tincture, capsule, or tablet and is best taken in the morning. Chaste tree is not to be taken in pregnancy. Please speak to your naturopathic physician about whether this herb will benefit you and your menstrual cycle.

Have you trHappy cycling, everyone!


  1. LISA BONNER says:

    Greetings!!! I have struggled with high estrogen levels for 5 yrs. Of course am fed up with excess cellulite, weight gain, acne, insomnia, heavy periods with cramps etc.. I cleanse my liver&colon regular, exercise, meditate, all the good things I can think of as I also work in Natural  Therapies. I use a natural  progesterone cream&homeopathic  drops and still have high estrogen so I can only imagine it comes from pesticides, chemicals, etc. I have been reaearching Chasteberry and it sounds great BUT its a phytoesteogen and I run as fast as my legs can carry me from plant estrogens as they greatly raise my estrogen levels. Soooooo can you please explain why you promote chasteberry pls. Eagerly anticipating your reply. Lisa Bonner

  2. Dr Julie Durnan says:

    Hi Lisa! Thank you for your comments and question. Absolutely, your elevated estrogen can be coming from environmental sources. Chaste Tree or Chaste Berry is actually the perfect herb for women with estrogen dominance. It doesn’t increase estrogen at all. In fact this herb is a balancer and has progesterogenic properties which helps to reduce the estrogen:progesterone ratio. I hope this helps.

  3. renee says:

    Hello! I was wondering what your thoughts are on using Chaste Tree for treating endometriosis? I’ve seen this condition listed under other websites as a reason for taking it. 

    Thank you!

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