Hot flashes are one of the most common symptoms of perimenopause, yet they can still catch many women by surprise.

One day you’re feeling perfectly normal. The next, you’re suddenly overwhelmed by a wave of heat that seems to come from nowhere. For some women, it lasts only a few seconds. For others, it happens multiple times a day and starts disrupting sleep, concentration, and daily life.

Night sweats can be especially frustrating. Waking up overheated several times a night often leads to poor sleep, which can make other perimenopause symptoms feel even worse.

If you’re looking for relief, you’ve probably noticed there are countless supplements claiming to help. Black cohosh, red clover, soy isoflavones, sage, menopause blends, and dozens of products promising to “balance hormones naturally.”

The reality is a little more complicated.

No supplement works for everyone, and none have been shown to match the effectiveness of hormone replacement therapy (HRT) for hot flashes. However, some ingredients have been studied more than others and have built a strong following among women looking for non-hormonal options.

In this guide, we’ll look at the best supplements for hot flashes during perimenopause based on scientific research, ingredient quality, popularity, and overall value.

Quick Picks

Best Overall: Estroven Complete Multi-Symptom
A popular all-in-one formula designed to support hot flashes, night sweats, mood changes, and other common perimenopause symptoms.

Best for Hot Flashes: Remifemin
A standardized black cohosh supplement with some of the strongest clinical research for reducing hot flashes.

Best for Night Sweats: A.Vogel Menoforce Sage
A sage-based supplement traditionally used to help reduce excessive sweating and night sweats.

Best Red Clover Supplement: Nature’s Way Red Clover
Provides naturally occurring phytoestrogens that may help reduce the frequency and intensity of hot flashes.

Best Soy Isoflavone Supplement: Puritan’s Pride Soy Isoflavones
A concentrated source of soy isoflavones that may help support hormonal balance and menopausal symptom relief.

This article contains affiliate links. If you purchase through these links, we may earn a small commission at no extra cost to you. We only recommend products we believe may be helpful based on research, ingredient quality, and real-world use.

How We Chose These Supplements

There is no single supplement that works for every woman. Hot flashes can be influenced by hormone fluctuations, stress, sleep, alcohol, body temperature, and individual sensitivity.

For this guide, we focused on supplements that met several practical criteria:

• Ingredients commonly used for hot flashes or night sweats
• Products with strong customer review history
• Recognizable supplement brands
• Reasonable value for money
• Clear connection to perimenopause, menopause, hot flashes, or vasomotor symptoms

We also considered whether the supplement category has been discussed in scientific reviews. Research on menopause supplements is mixed, but ingredients such as black cohosh, soy isoflavones, red clover, and sage have all been studied in relation to hot flashes or menopausal symptoms.

Comparison Table

Product	Main Ingredient	Best For
Estroven Complete Multi-Symptom	Rhapontic rhubarb extract	Overall symptom support
Remifemin	Black cohosh	Frequent hot flashes
A.Vogel Menoforce Sage Tablets	Sage	Night sweats and sweating
Nature’s Way Red Clover	Red clover	Plant-based support
Puritan’s Pride Soy Isoflavones	Soy isoflavones	Phytoestrogen support

What Causes Hot Flashes During Perimenopause?

Hot flashes are caused by hormonal fluctuations that occur as the ovaries gradually produce less estrogen.

One of the biggest misconceptions about perimenopause is that estrogen simply declines in a steady, predictable way. In reality, hormone levels often fluctuate dramatically from month to month and even from day to day.

These hormonal shifts affect the hypothalamus, the area of the brain responsible for regulating body temperature.

As estrogen levels become more unpredictable, the body’s internal thermostat can become more sensitive. Small changes in temperature that would normally go unnoticed may suddenly trigger a hot flash.

Common symptoms include:

• Sudden feelings of heat
• Flushing of the face, neck, or chest
• Excessive sweating
• Increased heart rate
• Chills after the hot flash passes
• Night sweats during sleep

Some women experience only occasional episodes, while others may have multiple hot flashes every day.

Certain triggers can also make symptoms worse, including:

• Alcohol
• Caffeine
• Stress
• Hot weather
• Spicy foods
• Poor sleep

Because hormonal fluctuations are the root cause, supplements don’t directly replace estrogen. Instead, they may help reduce symptom severity or frequency through different mechanisms depending on the ingredient.

If sleep disruption is one of your biggest challenges, you may also want to read our guide on the best supplements for perimenopause sleep.

1. Estroven Complete Multi-Symptom

Best Overall Supplement for Perimenopause

If you’re not sure where to start, Estroven Complete is probably the most practical option on this list.

One reason is simple: hot flashes rarely occur in isolation.

Many women experiencing hot flashes are also dealing with sleep issues, mood changes, irritability, fatigue, brain fog, or night sweats. Choosing a product that targets several symptoms at once often makes more sense than trying to build a supplement stack from scratch.

Estroven has become one of the most recognizable names in the menopause category and consistently ranks among the best-selling products available.

Unlike many menopause formulas that rely heavily on black cohosh, Estroven Complete uses ERr 731®, a standardized extract derived from rhapontic rhubarb. This ingredient has been studied for menopausal symptoms and has become one of the distinguishing features of the product.

The appeal of Estroven is convenience.

Rather than taking several different supplements, users get a single daily product designed to support multiple symptoms.

That doesn’t necessarily mean it will eliminate hot flashes, but many women prefer starting with a broader approach before experimenting with more targeted ingredients.

2. Remifemin

Why it stands out

Best Black Cohosh Supplement for Hot Flashes

If hot flashes are your primary concern, Remifemin deserves serious consideration.

Black cohosh is one of the most researched herbal ingredients used for menopausal symptoms and remains one of the most widely recommended non-hormonal options.

Remifemin has been on the market for decades and has built a strong reputation around a very simple idea: deliver a standardized black cohosh extract without unnecessary fillers or dozens of additional ingredients.

That simplicity is part of its appeal.

Many women prefer starting with a single ingredient so they can better judge whether it is helping.

The scientific evidence for black cohosh is mixed. Some studies have found meaningful improvements in hot flashes, while others have found little difference compared with placebo. Despite that uncertainty, black cohosh continues to be one of the most widely used supplements for menopausal symptoms.

One reason may be that individual responses vary significantly. Some women report noticeable improvement within a few weeks, while others see little change.

Remifemin won’t be the right choice for everyone, but if you’re specifically searching for a supplement associated with hot flashes, it’s one of the most established options available.

3. A.Vogel Menoforce Sage Tablets

Best Supplement for Night Sweats

While hot flashes often get the most attention, many women find that night sweats are actually the symptom that affects their quality of life the most.

Repeatedly waking up overheated can disrupt sleep, increase fatigue, and make other perimenopause symptoms feel more difficult to manage. Even women who only experience mild hot flashes during the day may struggle with nighttime temperature changes.

That’s where Menoforce Sage stands out.

Unlike most menopause supplements that focus on phytoestrogens or hormone-support ingredients, Menoforce uses fresh sage extract as its primary active ingredient.

Sage has a long history of use for excessive sweating and has become increasingly popular among women looking for non-hormonal options for hot flashes and night sweats.

Research on sage is more limited than research on black cohosh or soy isoflavones, but the studies that do exist have produced encouraging results. Several have found reductions in hot flashes and improvements in overall menopausal symptoms.

One thing many women appreciate about Menoforce is its simplicity.

Rather than combining multiple ingredients, it focuses on a single herb that specifically targets overheating and sweating.

If your primary complaint is waking up hot at night rather than dealing with a wide range of symptoms, Menoforce may be a better fit than a broader menopause formula.

4. Nature’s Way Red Clover

Best Red Clover Supplement

Red clover has been used for menopausal symptoms for decades and remains one of the most popular plant-based options available.

The reason is its naturally occurring isoflavones.

Isoflavones are compounds often referred to as phytoestrogens because they can interact with estrogen receptors in the body. They don’t function like estrogen replacement therapy, but they may provide mild estrogen-like activity in some women.

This makes red clover an appealing option for women looking for a more natural approach to managing hot flashes.

Research findings have been mixed.

Some studies report modest improvements in hot flash frequency and severity, while others have found little difference compared with placebo. However, red clover continues to appear in many menopause supplements and remains widely used around the world.

Nature’s Way is one of the most established supplement brands available and offers a straightforward red clover formula without unnecessary extras.

For women who are interested in phytoestrogens but prefer not to use soy-based supplements, red clover may be worth considering.

5. Puritan’s Pride Soy Isoflavones

Best Soy Isoflavone Supplement

Of all the ingredients featured in this guide, soy isoflavones arguably have some of the strongest research support for hot flashes.

Like red clover, soy contains phytoestrogens. These naturally occurring compounds can bind weakly to estrogen receptors and may help reduce vasomotor symptoms such as hot flashes and night sweats.

Importantly, soy isoflavones do not replace estrogen. Instead, they provide a much milder effect that some women find helpful during perimenopause.

Several studies have found that soy isoflavones may reduce both the frequency and severity of hot flashes when taken consistently over time.

One reason we selected Puritan’s Pride is its simplicity.

Many menopause supplements combine soy with numerous other ingredients, making it difficult to know what’s actually helping. This product focuses specifically on soy isoflavones, making it easier to evaluate your response.

It is also one of the more affordable options on this list, which matters because many supplements require several weeks of consistent use before benefits become noticeable.

What Does Research Say About Supplements for Hot Flashes?

This is where things become more nuanced.

Many supplement articles either promise dramatic results or dismiss supplements entirely. The reality sits somewhere in the middle.

According to a review published through the U.S. National Library of Medicine, evidence for many complementary therapies remains mixed, but some ingredients appear more promising than others.

You can read the review here:

Article in U.S. National Library of Medicine

The authors evaluated a range of interventions including black cohosh, red clover, soy products, evening primrose oil, and other herbal therapies.

Their overall conclusion was that some supplements may provide relief for certain women, but results are often inconsistent and more research is needed.

Soy Isoflavones

Among the ingredients in this guide, soy isoflavones generally have some of the strongest support.

Several studies have reported modest reductions in hot flashes, particularly when supplements are taken consistently for several weeks or months.

Black Cohosh

Black cohosh is one of the most extensively studied herbal options for menopausal symptoms.

Results have been mixed, but it remains one of the most commonly recommended supplements for women seeking a non-hormonal approach.

Red Clover

Red clover contains isoflavones similar to those found in soy.

Some studies suggest benefits, while others report little effect. Overall, evidence remains mixed but promising enough that it continues to be widely used.

Sage

Research on sage is more limited.

However, smaller studies have reported reductions in hot flashes and improvements in overall menopausal symptoms, particularly in women experiencing excessive sweating.

What About HRT?

It’s important to acknowledge that hormone replacement therapy remains the most effective treatment for hot flashes.

No supplement has consistently matched the results seen with HRT.

That doesn’t mean supplements aren’t worth trying. Many women prefer to explore non-hormonal options first, while others use supplements alongside lifestyle changes or medical treatment.

The goal is not necessarily to eliminate every symptom, but to reduce them enough that daily life becomes more manageable.

What to Look for in a Supplement for Hot Flashes

With so many products on the market, choosing a supplement can feel overwhelming.

Here are a few things worth considering.

Targeted Ingredient

Ask yourself what symptom you’re trying to address.

If hot flashes are your main concern, black cohosh or soy isoflavones may make sense.

If night sweats are disrupting your sleep, sage may be worth exploring.

Single Ingredient vs Multi-Symptom Formula

Single-ingredient products make it easier to determine what’s helping.

Multi-symptom formulas may be more convenient if you’re dealing with several symptoms at once.

Time to Results

Most supplements don’t work overnight.

Many studies evaluate results after 8-12 weeks, so it’s important to give a product enough time before deciding whether it works for you.

Product Quality

Choose established brands with transparent ingredient lists and a long track record of use.

Realistic Expectations

Supplements may reduce symptom severity or frequency, but they’re unlikely to completely eliminate hot flashes.

The most successful approach often combines supplements with sleep support, exercise, stress management, and other healthy lifestyle habits.

Lifestyle Changes That May Help Reduce Hot Flashes

Supplements can be helpful, but they tend to work best when combined with lifestyle habits that support hormonal health and temperature regulation.

The good news is that small changes can sometimes make a noticeable difference.

Limit Alcohol

Many women find that alcohol is one of the most reliable hot flash triggers.

Evening drinks can be particularly problematic because they may increase the likelihood of night sweats and sleep disruptions.

If you regularly experience nighttime symptoms, consider reducing alcohol for a few weeks to see whether symptoms improve.

Watch Your Caffeine Intake

Coffee affects everyone differently.

Some women can drink several cups a day without noticing a difference, while others find that caffeine makes hot flashes more frequent or intense.

If you’re sensitive to caffeine, reducing intake in the afternoon may be especially helpful.

Keep Your Bedroom Cool

Night sweats often become more disruptive when the sleeping environment is too warm.

Simple strategies include:

• Using breathable bedding
• Lowering room temperature
• Wearing lightweight sleepwear
• Using a fan

Many women report that temperature control alone can improve sleep quality significantly.

Prioritize Sleep

Poor sleep and hot flashes often create a frustrating cycle.

Hot flashes interrupt sleep, and sleep deprivation may increase stress and symptom sensitivity.

If sleep is one of your biggest challenges, you may also find these guides helpful:

• Best Supplements for Perimenopause Sleep
• How to Fall Asleep Faster During Perimenopause Naturally
• Why You Wake Up at 3AM During Perimenopause

Exercise Regularly

Research consistently shows that regular physical activity supports overall health during perimenopause.

Exercise may not eliminate hot flashes, but it can help improve:

• Sleep quality
• Mood
• Energy levels
• Stress management
• Long-term cardiovascular health

The best exercise is ultimately the one you can do consistently.

Manage Stress

Stress doesn’t cause perimenopause, but it can make symptoms feel more intense.

Simple stress-management practices such as walking, yoga, meditation, journaling, or spending time outdoors may help reduce symptom burden and improve overall well-being.

Frequently Asked Questions

What is the best supplement for hot flashes during perimenopause?

There isn’t a single supplement that works for everyone.

Among the options available, black cohosh, soy isoflavones, sage, and red clover are some of the most commonly used ingredients for hot flashes. For women looking for a broad menopause formula, Estroven Complete is one of the most popular choices.

What is the best supplement for night sweats?

Sage is one of the most commonly used herbal ingredients for excessive sweating and night sweats.

That’s why A.Vogel Menoforce Sage earned our top recommendation for women whose primary concern is nighttime overheating.

Can perimenopause cause hot flashes in your early 40s?

Yes.

Many women begin experiencing hot flashes, night sweats, sleep disturbances, and cycle changes during their early 40s.

In some cases, symptoms can begin even earlier.

Are soy isoflavones the same as estrogen?

No.

Soy isoflavones are phytoestrogens, which are plant compounds that can interact weakly with estrogen receptors.

They are much less potent than estrogen and do not function like hormone replacement therapy.

How long do supplements take to work?

Most supplements require several weeks of consistent use before benefits become noticeable.

Many studies evaluate outcomes after 8 to 12 weeks rather than days.

Patience is important when trying any new supplement.

Is black cohosh effective for hot flashes?

Research on black cohosh has produced mixed results.

Some studies report improvements in hot flash frequency and severity, while others find little difference compared with placebo.

Despite the mixed evidence, black cohosh remains one of the most widely used supplements for menopausal symptoms.

Can supplements replace HRT?

Generally, no.

Hormone replacement therapy remains the most effective treatment for hot flashes.

However, many women prefer to explore non-hormonal options first, and some find meaningful relief from supplements.

Why are my hot flashes worse at night?

Body temperature naturally changes throughout the day and night.

Hormonal fluctuations, room temperature, bedding, stress levels, and alcohol consumption can all contribute to more noticeable symptoms during sleep.

What vitamin deficiency can worsen hot flashes?

No single vitamin deficiency directly causes hot flashes.

However, low levels of vitamin D, magnesium, iron, or certain B vitamins may contribute to fatigue, poor sleep, and other symptoms that often accompany perimenopause.

Should I take magnesium for hot flashes?

Magnesium is not typically considered a primary treatment for hot flashes.

However, many women take magnesium to support sleep quality, relaxation, and overall well-being during perimenopause.

You can learn more in our guides on Magnesium Benefits for Perimenopause and Magnesium Dosage for Sleep During Perimenopause.

Final Verdict

If you’re searching for the best supplement for hot flashes during perimenopause, it’s important to remember that there is no universal solution.

The supplement that works well for one woman may do very little for another.

That said, some options have stronger evidence and longer track records than others.

Best Overall

Estroven Complete Multi-Symptom
A practical choice for women experiencing multiple symptoms beyond hot flashes alone.

Best for Hot Flashes

Remifemin
One of the best-known black cohosh supplements and a popular choice for women specifically focused on hot flash relief.

Best for Night Sweats

A.Vogel Menoforce Sage
A targeted option for women whose biggest challenge is overheating and nighttime sweating.

Best Red Clover Supplement

Nature’s Way Red Clover
A straightforward phytoestrogen supplement for women interested in a plant-based approach.

Best Soy Isoflavone Supplement

Puritan’s Pride Soy Isoflavones
One of the strongest evidence-based non-hormonal ingredients available for hot flashes.

Ultimately, the best supplement is the one that helps you feel better while fitting your individual symptoms, preferences, and health goals.

If symptoms become severe or begin significantly affecting your quality of life, consider speaking with a healthcare professional about all available treatment options, including hormone therapy.

Some of the links in this guide are affiliate links. This means we may earn a commission if you choose to purchase a product through them, at no additional cost to you. Our recommendations are based on ingredient quality, available research, product reputation, and overall value for women navigating perimenopause.