Menopause supplements herbal: what does the evidence show?
Menopause supplements herbal products such as black cohosh have weak or inconsistent evidence overall, and the most encouraging result is a 2023 review of 22 studies that found black cohosh potentially beneficial for overall menopause symptoms, including hot flashes. It's worth comparing them with other supplements for women and having any herb checked against the medicines you already take.
Wondering whether a plant-based product might ease menopause symptoms is common, and it's a fair question. In the US these products are usually labeled herbal supplements or dietary supplements, and in the UK the NHS calls them herbal remedies and complementary medicines. Black cohosh, St John's wort, red clover and maca come up most often, and this page sets out what has been tested for each. If you came here about maca while trying to conceive, no authoritative guidance sets a stop date, and the questions near the end say who to ask.
What are herbal remedies for menopause?
Herbal remedies for menopause are plant extracts taken as capsules, tablets, teas or tinctures in the hope of easing symptoms. "Herbal" is a category, not a single treatment: each herb has its own research, so a finding about one says nothing about the next.
That matters when a product is described as a menopause treatment, herbal or otherwise, because the wording on a pack is not the same as a tested effect. Black cohosh is a good example: the NHS notes it is believed to balance estrogen (oestrogen in UK spelling) and progestogen levels, and describes that claim as unproven. A gentle way to read any claim is to ask which herb, tested for which symptom, and for how long.
What does the evidence say about menopause supplements herbal products?
The evidence shows a mixed picture, which is what "weak or inconsistent" means: the studies were too limited, or disagreed too much, to settle the question. It does not mean an herb has been shown to do nothing. The same finding applies to herbal perimenopause supplements as to those taken after the final period.
Black cohosh has the most encouraging result. The 2023 review, summarized by the US National Center for Complementary and Integrative Health (NCCIH), found black cohosh products potentially beneficial for overall menopause symptoms, including hot flashes (hot flushes in the UK), with no benefit found for anxiety or depression. "Potentially beneficial" describes a signal worth following, not a confirmed effect.
Professional bodies read that picture in two ways. In the US, The Menopause Society's 2023 nonhormone therapy position statement lists supplements and herbal remedies among the therapies it does not recommend for vasomotor symptoms, the medical term for hot flashes and night sweats. In the UK, the NHS says there is very little evidence on how well herbal remedies work or how safe they are, and advises asking a GP or pharmacist.
On safety, NCCIH describes black cohosh as generally well tolerated. Possible liver damage has been reported in rare cases, and it is uncertain whether the herb was the cause. The second point is other medicines: herbal remedies such as black cohosh and St John's wort have possible drug interactions, including with tamoxifen and the pill, a caution reflected in the UK's NICE menopause guideline, NG23, updated in 2024.
How much, how often, and for how long?
What the research offers here is study length, not a dose. Black cohosh has been used in studies lasting as long as a year. St John's wort has been studied for mild or moderate depression, and its evidence becomes uncertain beyond 12 weeks. Since neither position above recommends an herb for hot flashes, there is no recommended amount or schedule to quote.
So the practical question is fit, not quantity. A pharmacist, an OB-GYN or, in the UK, a GP can check a product against your regular medicines.
It's worth booking a visit if hot flashes, night sweats or low mood are getting in the way of sleep, work or daily life, because herbal products are only one of the options to talk through. If you feel unwell after starting one, mentioning the product by name helps your doctor see the full picture.
What did the studies show, and what did they not show?
The studies answered narrower questions than a label might suggest. The black cohosh review looked at products as a group, so its finding describes the group and cannot say how any single product will perform.
St John's wort was studied for mood. A benefit for hot flashes is not established, and even for low mood the evidence does not extend to severe depression. For maca, systematic reviews summarized by Memorial Sloan Kettering Cancer Center found limited evidence for menopausal symptoms, and its effects on women's hormones are mixed.
None of these findings ranks one herb against another, which is worth remembering when a list promises the best menopause herbal supplements. What they do offer is a clear view of what has been tested, so you can match a product's promise to the symptom it was studied for.
Herbal remedies by life stage
| Stage | Figure | Why | Read more |
|---|---|---|---|
| Childhood | Not applicable | These herbs were studied for menopause symptoms; this link is for parents looking at supplements for children. | Supplements |
| Puberty | Not applicable | These herbs were studied for menopause symptoms; this link is for the teenage years. | Supplements |
| Reproductive years | Maca: no defined stop date | No authoritative guidance sets one; this link is for readers planning a pregnancy. | Supplements |
| Perimenopause | Weak or inconsistent evidence | Possible liver effects and drug interactions; this link is for the years leading up to the final period. | Supplements |
| Menopause | Weak or inconsistent evidence | Possible drug interactions include tamoxifen and the pill. | Supplements |
| Postmenopause | Black cohosh: studies up to 1 year | Worth knowing for anyone thinking about longer use; this link is for the years after menopause. | Supplements |
Guidance by country
Facts
Common questions
When to stop taking maca root when trying to conceive?
There is no set day, and its fertility data come from animal studies, not from women. Memorial Sloan Kettering Cancer Center says pregnant or breastfeeding patients should talk to a provider because maca may not be safe, so many women find it simplest to raise maca with an OB-GYN, or a GP in the UK, while still planning.
Which are the best herbal supplements for perimenopause?
The research does not single one out. One point is specific to these years: if you still use the pill for contraception, that is the first thing to mention at the pharmacy, for the reason given in the next answer.
Does St John's wort interact with the pill or antidepressants?
Yes. NCCIH reports that it can weaken many medicines, including birth control pills, and that combining it with antidepressants that act on serotonin can cause serious side effects. The NHS gives the same warning. If you take either, a pharmacist is a good first person to ask before starting it.
Are red clover or soy a plant-based alternative?
The NHS notes that red clover contains plant hormones, and includes it among the herbal remedies whose safety and effectiveness are not known. In the US, The Menopause Society's 2023 statement names soy products among the therapies it does not recommend for hot flashes. Either is worth adding to the list you show a pharmacist.
Can maca affect hormone or lab test results?
It may. Memorial Sloan Kettering Cancer Center notes that maca may interfere with lab tests that measure testosterone, so it's worth mentioning before blood work. The same source advises people with hormone-sensitive cancers to check with a provider before using maca.
Next steps
A good place to start is a simple list: any herbal product you take or are considering, written next to your regular medicines, prescription and over the counter. Taking it to a pharmacy visit turns a general caution into an answer about you. Some women try one herb for a set period and then review how they feel, while others skip herbal products and ask about other options for hot flashes. Your symptoms, health history and preferences all shape what makes sense, and the choice is yours, because menopause care is not one size fits all.
Sources
The guidelines and studies this page draws on.
- Black Cohosh (NCCIH fact sheet), NIH National Center for Complementary and Integrative Health (2025)
- St. John's Wort (NCCIH fact sheet), NIH National Center for Complementary and Integrative Health (2025)
- News release: 2023 nonhormone therapy position statement, The Menopause Society (formerly NAMS), via EurekAlert (2023)
- Herbal remedies and complementary medicines for menopause symptoms, NHS (2025)
- Maca (About Herbs), Memorial Sloan Kettering Cancer Center (2025)
- NICE NG23: Menopause: identification and management (updated 2024), National Institute for Health and Care Excellence (NICE) (2024)