Why is there so much interest in herbal products for menopause?
When hot flashes, night sweats and broken sleep make daily life hard, many people first look for a “natural” solution. Herbal shops, pharmacies and websites sell a large number of products labeled “menopause tea”, “menopause capsules” or “hormone balancing.” This interest is understandable: herbal products are easy to get, need no prescription and seem harmless because they are “natural.”
This page is not a product list but an evidence summary and a safety note. Below you will find what major health organizations and systematic reviews say about these products and which safety warnings they highlight.
Do herbal products work for menopause?
In short: the evidence is weak and mixed. The NHS says products such as red clover and black cohosh are sold for menopause symptoms, but there is very little evidence on how effective and how safe they are (NHS, Treatment). The Menopause Society also says that solid data to assess the effectiveness of many supplements and foods, such as black cohosh, soy foods and soy extracts, are limited, and that some have failed to show a meaningful benefit in clinical trials (The Menopause Society, Hot Flashes).
NCCIH (the National Center for Complementary and Integrative Health), part of the US National Institutes of Health, paints a similar picture: the results of studies on herbal products are often inconsistent, and very little is known about long-term safety (NCCIH, Menopausal Symptoms: In Depth).
Black cohosh
Black cohosh is one of the best-selling and most-studied herbal products for menopause. A Cochrane review covering 16 randomized controlled trials and 2027 women found no significant difference between black cohosh and placebo (an inactive dummy treatment) in the number of daily hot flashes or in menopause symptom scores. The review concluded that there was not enough evidence to support its use, and noted that the safety data did not allow a firm conclusion either, because safety was poorly reported in the trials (Leach and Moore, 2012).
On safety, NCCIH says black cohosh generally causes mild side effects, but there have been rare reports of liver damage. It says people with liver disease should talk to a health care provider before using it, and anyone who develops a sign suggesting a liver problem should see a clinician before continuing to use the product (NCCIH, Menopausal Symptoms: In Depth).
Red clover and soy isoflavones
Red clover and soy isoflavones contain substances called plant estrogens (phytoestrogens), which can act like estrogen in the body. NCCIH says studies testing these products for hot flashes have produced inconsistent results. It adds that they appear safe for short-term use, but their long-term safety is unknown. Because they can act like estrogen, it also stresses that they may not be safe for people who should not use estrogen (NCCIH, Menopausal Symptoms: In Depth).
There is an important distinction here: foods such as soybeans, tofu or soy milk can be part of a balanced diet. Concentrated extracts and capsules are a different matter; the amount they contain can be very different from food. You can find general information about diet in menopause diet.
St John’s wort
St John’s wort is one of the herbal products used for mood. NCCIH says St John’s wort can reduce the effect of many medicines and gives it as an example of supplements interacting with medicines (NCCIH, Using Dietary Supplements Wisely). If you take medicines regularly, it is especially important to ask your clinician or pharmacist about this product.
| Product group | What the evidence says | Safety note |
|---|---|---|
| Black cohosh | No significant difference compared with placebo; not enough evidence (Cochrane) | Rare reports of liver damage (NCCIH) |
| Red clover, soy isoflavones | Inconsistent results for hot flashes (NCCIH) | Long-term safety unknown; may not be suitable for those who should not use estrogen |
| St John’s wort | These sources offer no evidence for menopause symptoms | Can reduce the effect of many medicines (NCCIH) |
| Mixed “menopause” products and teas | Ingredients and amounts unclear | The label may not match the contents (NCCIH) |
Why aren’t herbal products assessed like medicines?
Before a prescription medicine goes on the market, it is reviewed for effectiveness and safety. Supplements are different. NCCIH says that in the US, dietary supplements are not reviewed for safety and effectiveness before they go on sale, and problems are often addressed only after a product is on the market. The same source makes two more important warnings: what is on the label is not always what is in the product, and some products sold as supplements have been found to contain prescription drugs (NCCIH, Using Dietary Supplements Wisely).
That’s why a “standardized” or “herbal” label on its own is no guarantee of quality or consistency (NCCIH, Menopausal Symptoms: In Depth). Contents that can vary from one box to the next make both the effect and the safety harder to assess.
Is natural the same as safe?
No. The word “natural” is not a measure of safety. NCCIH gives the example of some supplements of natural origin that have been linked to serious liver disease and stresses that natural does not always mean safe (NCCIH, Using Dietary Supplements Wisely). The NHS also says some herbal products can cause serious side effects when used with other medicines (NHS, Treatment).
Herbal products call for particular care if:
- You take regular medicines such as blood thinners, or medicines for blood pressure, the heart, diabetes, epilepsy or mental health.
- You have liver disease.
- You have a history of breast cancer or have been told not to use estrogen.
- You have surgery planned.
What should you tell your clinician if you use herbal products?
NCCIH asks you to tell all your health care providers about every complementary product you use (NCCIH, Menopausal Symptoms: In Depth). The NHS also says to talk to a doctor before using herbal supplements or complementary products (NHS, Things you can do). It helps to go to your appointment with notes on:
- The name of the product and the ingredient list on the box (a photo of the box, if possible).
- Since when and how often you have used it.
- Why you decided to use it and whether you have noticed any difference in your symptoms.
- Any other medicines and supplements you use alongside it.
Don’t see this conversation as a moment of being judged. What matters to your clinician is knowing everything that goes into your body and preventing a possible interaction.
What other options can be discussed besides herbal products?
If what you hope for from herbal products is relief from hot flashes or better sleep, there are other options with clearer evidence. The Menopause Society lists cognitive behavioral therapy and clinical hypnosis among low-risk options for hot flashes (The Menopause Society, Hot Flashes). NCCIH also says some studies of hypnosis and mindfulness-based programs found a reduction in how often hot flashes happened or how bothersome they were (NCCIH, Menopausal Symptoms: In Depth).
We describe all the options in broad terms in menopause treatment options, and hot flashes themselves and their triggers on the hot flashes page. The safest approach is to weigh up which path suits you together with a clinician who knows your health history.