What supplements actually help in perimenopause?

The best-supported are creatine monohydrate (with resistance training, for strength and muscle), magnesium (for sleep), vitamin D (for bone health), and omega-3 (for mood and heart). These are cheap and have real evidence. Most branded multi-botanical blends marketed for menopause are not proven as finished products, even when a single ingredient has some research.

Is Hormone Harmony FDA approved?

No. Like all dietary supplements, it is regulated as food, not medicine, so it is not FDA-approved and cannot legally claim to treat or cure menopause. The label's softer wording, like 'supports hormonal balance,' exists precisely because stronger claims are not allowed without drug approval.

What does The Menopause Society say about supplements for hot flashes?

Its 2023 nonhormone position statement does not recommend most botanicals and dietary supplements for hot flashes, and specifically does not recommend black cohosh or soy extracts due to inconsistent evidence. It instead backs options with better trial support, including cognitive behavioral therapy, certain SSRIs and SNRIs, gabapentin, and the prescription drugs fezolinetant and elinzanetant.

Is black cohosh safe and does it work for hot flashes?

The evidence that black cohosh reduces hot flashes is weak and mixed, which is why The Menopause Society does not recommend it. It is also linked to rare reports of liver injury, so it is best avoided if you have liver disease and worth discussing with a doctor first. If you take it, stop and seek care for any yellowing of the skin or eyes, dark urine, or unusual fatigue.

The best perimenopause supplements - and the ones to skip

Written and edited by the Peryla team. Last reviewed August 2026. Educational information, not medical advice.

For most women in perimenopause, the supplements with the strongest evidence are the plain, cheap ones: creatine monohydrate (with resistance training, for strength and muscle), magnesium for sleep, vitamin D for bone health, and omega-3 for mood and heart. The expensive multi-botanical blends marketed specifically for menopause, including popular ones like Happy Mammoth Hormone Harmony, are mostly unproven as finished products, even when their individual ingredients have some research.

No supplement is FDA-approved to treat menopause, and The Menopause Society does not recommend most botanicals for hot flashes. Below is a use-case comparison, not a single 'best' pick, because the right choice depends on the symptom you are trying to help and how much proof you want for your money.

How to judge a perimenopause supplement

Supplements are regulated as food, not medicine, so no menopause supplement has to prove it works before it is sold, and none can legally claim to treat, cure, or prevent a condition. That is why the labels lean on softer wording like 'supports hormonal balance.'

The single most useful habit is to separate the ingredient from the product. A brand can point to a study on one botanical, at one dose, and imply the whole blend is proven. It is not the same thing. Many menopause blends are proprietary, meaning they list the ingredients but hide how much of each is inside, so you cannot tell whether an active is present at the amount that was actually studied. When a product hides its doses and has no trial on the finished formula, treat its promises as marketing, not evidence.

The evidence-backed staples worth considering first

These are the least glamorous and the best supported. They are also the cheapest, which is part of why they get less marketing than the branded blends.

Creatine monohydrate: the strongest recent evidence in this life stage. A 2025 systematic review in postmenopausal women found small but real gains in lean mass and strength when creatine is paired with resistance training. Typical dose 3-5 g/day. See our creatine guides for the detail.
Magnesium (glycinate is gentle on the stomach): modest help with sleep and relaxation, best if you are running low. Common dose around 200-350 mg at night; note the tolerable upper limit for supplemental magnesium is 350 mg/day before it tends to cause loose stools.
Vitamin D (with or without calcium): supports calcium absorption and bone as estrogen falls. Most adults use 600-800 IU/day, more if a blood test shows you are deficient.
Omega-3 (EPA/DHA fish oil): reasonable support for mood and heart health, weaker and inconsistent for hot flashes. Around 1-2 g combined EPA+DHA a day.

Single studied ingredients for hot flashes

If hot flashes are the target and hormones are off the table, two single-ingredient products have more trial support than the average blend, though the studies are largely funded by or linked to the makers, so read them with that in mind.

Rhapontic (Siberian) rhubarb extract, sold as the ingredient ERr 731 in Estroven and Estrovera, has several randomized trials suggesting reduced hot flash frequency over about 12 weeks. Swedish flower pollen extract, sold as Bonafide Relizen, is non-hormonal and has a manufacturer-linked study reporting fewer hot flashes; independent evidence is thinner and the results are debated.

For context, The Menopause Society's 2023 nonhormone position statement does not recommend most botanicals and dietary supplements for hot flashes, and specifically does not recommend black cohosh or soy extracts because the evidence is inconsistent. What it does back are options like cognitive behavioral therapy, certain SSRIs and SNRIs, gabapentin, and the prescription drugs fezolinetant and elinzanetant.

Happy Mammoth Hormone Harmony review

Hormone Harmony, from Happy Mammoth, is the most heavily advertised menopause blend online, and the one readers ask about most. It is a capsule product built around a roughly 12-botanical blend that includes maca, chaste tree (vitex), ashwagandha, rhodiola, and berberine, marketed for broad relief of menopausal and hormonal symptoms. A jar is about $70 for a one-time purchase (less on subscription) and holds 72 capsules, which at the label's three-a-day is closer to a 24-day supply than a full month, so the real monthly cost runs higher than the sticker.

The honest problem is evidence. There is no published clinical trial on the finished Hormone Harmony product, and the blend is proprietary, so the per-ingredient doses are not disclosed. In August 2024, the National Advertising Division (part of BBB National Programs) reviewed the marketing and recommended Happy Mammoth discontinue claims that the product relieves menopause symptoms and hot flashes, improves sleep quality, and reduces bloating and gas, because there was no substantiation on the product itself. That October, the watchdog Truth in Advertising (TINA.org) also flagged its claims in a wider sweep of menopause-supplement marketers. We found no FTC enforcement action or lawsuit against the company as of August 2026.

Customer sentiment is genuinely mixed: the brand's Trustpilot score sat around 4.3 out of 5 as of August 2026, with many users reporting they feel better on it, while common complaints center on the price, how fast a jar runs out, and difficulty cancelling the auto-renewing subscription. If you want one convenient all-in-one and are comfortable paying a premium for an unproven proprietary blend, it is a reasonable thing to try for a month or two and judge by how you feel, ideally on a one-time order rather than a subscription. It is not, on current evidence, a proven treatment.

The other blends, briefly

O Positiv MENO (ashwagandha, black cohosh, chasteberry, plus vitamins) and Amberen (a proprietary succinate blend) are marketed similarly. Neither has an independent trial on the finished product; both rest on individual-ingredient studies, and Amberen's own trials were authored by people with disclosed conflicts of interest. The same rule applies: a studied ingredient is not a proven product, and a proprietary blend hides whether the studied dose is even in the bottle.

How to spend sensibly

Start with the cheap, evidence-backed staples and lifestyle basics before the branded blends. Add one thing at a time so you can tell what is actually helping, give it a fair trial of six to eight weeks, and tell your doctor what you are taking, especially if you are on other medications. If hot flashes or mood symptoms are severe, the prescription and behavioral options usually have far more evidence than anything on the supplement shelf, and are worth a conversation.

Ranked by what each is actually good for, not on a single 1-to-10 scale. Evidence-backed staples come first because they are cheap and proven; the branded blends sit lower because they are pricier and mostly unproven as finished products. Prices are approximate, as of August 2026.

Supplement	Best for	Evidence level	Approx cost/month
Creatine monohydrate	Strength, muscle, and bone with resistance training	Strong - 2025 meta-analysis in postmenopausal women	$15-25
Magnesium (glycinate)	Sleep and relaxation, especially if you run low	Moderate for sleep; best when deficient	$10-20
Vitamin D (+/- calcium)	Bone health as estrogen falls	Established for status and bone support	$5-15
Omega-3 (EPA/DHA)	Mood and heart; weak for hot flashes	Modest for mood; inconsistent for hot flashes	$15-30
Rhapontic rhubarb ERr 731 (Estroven, Estrovera)	Hot flashes and night sweats, single studied ingredient	Moderate - several RCTs on the ingredient, maker-linked	$25-45
Swedish flower pollen (Bonafide Relizen)	Hot flashes, non-hormonal option	Mixed - mainly manufacturer-linked studies	$40-58
Happy Mammoth Hormone Harmony	An all-in-one botanical blend if you value convenience over proof	Weak - no finished-product trial; NAD asked it to drop several claims (2024)	About $70 (jar is a ~24-day supply)
Ashwagandha (KSM-66)	Stress and sleep	Limited and preliminary for menopause specifically	$15-25
Black cohosh	Hot flashes (widely sold, but not recommended by The Menopause Society)	Weak and mixed; rare liver-injury reports	$10-20

Peryla is independent and does not make or sell any supplement. We rank by use case, not by what pays us. Some rows are marked as affiliate: if a reader buys through those, we may earn a commission, but the links are placeholders until any partner is signed, and a commission never changes a product's ranking or the evidence rating - we deliberately do not affiliate-link options we caution against, like black cohosh. Evidence ratings reflect published research on the finished product where it exists, and on the key ingredient otherwise. This is educational information, not medical advice.

When to see a doctor

You take prescription medication and want to add a supplement - ask about interactions first, since botanicals like berberine and St John's wort can affect how drugs work.
You have liver disease or abnormal liver tests - be cautious with black cohosh, which has rare reports of liver injury.
Your hot flashes, mood, or sleep are disrupting daily life - prescription and behavioral options have stronger evidence than supplements and deserve a discussion.
You are pregnant, trying to conceive, or breastfeeding - many menopause botanicals are not tested or advised in these situations.

Frequently asked questions

What supplements actually help in perimenopause?: The best-supported are creatine monohydrate (with resistance training, for strength and muscle), magnesium (for sleep), vitamin D (for bone health), and omega-3 (for mood and heart). These are cheap and have real evidence. Most branded multi-botanical blends marketed for menopause are not proven as finished products, even when a single ingredient has some research.
Does Happy Mammoth Hormone Harmony actually work?: There is no published clinical trial on the finished Hormone Harmony product, and its blend is proprietary, so the doses are hidden. In 2024 the National Advertising Division recommended the company drop claims that it relieves menopause symptoms and hot flashes, improves sleep, and reduces bloating, for lack of substantiation. Some users report feeling better on it, but on current evidence it is not a proven treatment. If you try it, judge it over a month or two, ideally on a one-time order rather than a subscription.
Is Hormone Harmony FDA approved?: No. Like all dietary supplements, it is regulated as food, not medicine, so it is not FDA-approved and cannot legally claim to treat or cure menopause. The label's softer wording, like 'supports hormonal balance,' exists precisely because stronger claims are not allowed without drug approval.
What does The Menopause Society say about supplements for hot flashes?: Its 2023 nonhormone position statement does not recommend most botanicals and dietary supplements for hot flashes, and specifically does not recommend black cohosh or soy extracts due to inconsistent evidence. It instead backs options with better trial support, including cognitive behavioral therapy, certain SSRIs and SNRIs, gabapentin, and the prescription drugs fezolinetant and elinzanetant.
Is black cohosh safe and does it work for hot flashes?: The evidence that black cohosh reduces hot flashes is weak and mixed, which is why The Menopause Society does not recommend it. It is also linked to rare reports of liver injury, so it is best avoided if you have liver disease and worth discussing with a doctor first. If you take it, stop and seek care for any yellowing of the skin or eyes, dark urine, or unusual fatigue.