The Best Fat Burners for Women for Value, Appetite Suppression, And More

We scoured the market to find our favorite supplements that can potentially boost fat burn for women.

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There’s quite a bit of evidence, both clinical and anecdotal, supporting fat burners as part of a well-planned fat loss regimen for women. Whether you need to cut for a physique show or you’re looking to shed some weight, fat burners may be able to help. Sure, there’s no way around a regimented diet and workout schedule when it comes to fat loss, but fat burners can still have a place in a woman’s weight loss plan

Not all of the ingredients you’ll find in fat burners are created equal. For example, some ingredients have reams of studies supporting their role in thermogenesis, appetite suppression, fat oxidation, calorie suppression, and more . While others only have a couple of promising studies, but need more research. For us, having a thoughtful balance of proven ingredients at the correct dosages combined with more experimental ones is ultimately how we selected these top fat burners for women. Below, we break down our picks, the ingredients that make up these quality fat burners, and our methodology for choosing the brands that we did.

The Best Women’s Fat Burners

Editor’s note: The content on BarBend is meant to be informative in nature, but it should not be taken as medical advice. The opinions and articles on this site are not intended for use as diagnosis, prevention, and/or treatment of health problems. It’s always a good idea to talk to your doctor before beginning a new fitness, nutritional, and/or supplement routine. 

Best Fat Burners for Women Video Review

Be sure to check out our best women’s fat burners video for an even more in-depth analysis of this supplement. 

The Best Fat Burner for Women

If you’re concerned with ingesting artificial ingredients that are either useless or dangerous, then you want to look for a product that contains only what you need (and want) — this product should be just that.

Leanbean

Leanbean contains 12 fat burning ingredients that can potentially help you achieve your weight loss goals. A big part of the appeal is glucomannan, a thickener and gelling agent made from the root of the Japanese konjac plant that studies suggest can effectively reduce appetite. (1) The ingredients list of this fat burner includes other fat burner stalwarts like cayenne pepper and green tea extract, and black pepper extract, which may also help increase metabolism, according to a 2016 paper from the Proceedings of the National Academy of Sciences of the United States of America. (2)

Leanbean fat burner is a little low in green coffee extract at only 16.67mg, but that doesn’t make this an ineffective supplement. It contains a small amount of natural caffeine and no artificial ingredients.

Leanbean
Leanbean
Leanbean

This fat burner, geared towards women, promotes fullness with three grams of Glucomannan, and has B vitamins for more energy and focus.

Who Should Take Leanbean

  • People who are concerned about ingesting artificial ingredients; this product does not have any.
  • Women who are looking for a product that is made for women specifically. 
  • Hungry individuals who would benefit from a slightly reduced appetite will appreciate the glucomannan in this product.

Who Shouldn’t Take Leanbean

  • People who are on a budget. Leanbean is more expensive than some other options on this list. 
  • Individuals with sensitive stomachs — the glucomannan may not sit well with some. 

Leanbean is made for women and contains 12 fat burning ingredients that can potentially help women burn fat, stay full, and boost metabolism. 

Best Thermogenic Fat Burner for Women

Thermogenic fat burners may help increase metabolism by increasing your body temperature. This product contains a dose of cayenne pepper fruit extract, which can help with this process.

Jacked Factory BURN-XT

Jacked Factory BURN-XT is a thermogenic fat burner containing cayenne pepper extract — 50mg per dose — which can help increase your metabolism by raising your body’s internal temperature. In addition, Jacked Factory’s BURN-XT includes l-carnitine, green tea extract, and caffeine, which can also help with fat burn. Its black pepper extract may also help you better absorb the ingredients. This product does contain a high dose of caffeine though — 270mg per dose — which is three times the amount in a cup of coffee. While this amount of caffeine isn’t particularly harmful, it may be more than some prefer. 

Jacked Factory BURN-XT
Jacked Factory BURN-XT
Jacked Factory BURN-XT

Jacked Factory's formula will save you money, but not at the expense of quality and efficacy. Each bottle contains 120 single-capsule servings that each provide 350 milligrams of L-carnitine.

Who Should Take Jacked Factory BURN-XT

  • Women looking for a fat burner that can help increase metabolism by raising body temperature.
  • If you’re concerned with absorption, the added black pepper extract in this formula can potentially help this fat burner absorb more effectively. 
  • Athletes who don’t mind a high dose of caffeine, and actually prefer it for an added jolt of energy at the gym.

Who Shouldn’t Take Jacked Factory BURN-XT

  • Folks who are allergic to black pepper — this product includes 5mg.
  • Anyone who is trying to limit their caffeine intake since this product contains a high dose.

Thermogenic fat burners are ideal if you are looking to potentially increase your metabolism throughout the day. Jacked Factory contains cayenne pepper extract that can help increase your body temperature to up your metabolism. 

Best Fat Burner for Women Over 40

If you’re finding it harder to get rid of stubborn fat as you age, Leanbean contains 12 ingredients that can potentially help. 

Leanbean

Leanbean contains 12 fat burning ingredients, which is more than most fat burners on the market. One of these is glucomannan, which is a dietary fiber that can potentially help with satiety. A few more of these ingredients are cayenne pepper extract, choline, green tea extract, and black pepper extract, which may help raise your body temperature, therefore increasing your metabolism. Plus, if you find yourself getting fatigued as you’re trying to keep up with your exercise regimen, this product also contains a blend of B vitamins that can help boost your energy. Aside from all of this, Leanbean is also made for and marketed specifically to women.

Leanbean
Leanbean
Leanbean

This fat burner, geared towards women, promotes fullness with three grams of Glucomannan, and has B vitamins for more energy and focus.

Who Should Take Leanbean

  • Women 40+ who are looking for a wide variety of ingredients that can specifically help with fat burn. 
  • Customers who are looking for a product that is made for women in particular. 
  • Athletes who are eating in a calorie deficit and may appreciate added fiber in their fat burner for satiety. 

Who Shouldn’t Take Leanbean

  • Women who don’t value this product’s comprehensive ingredients list can find less expensive fat burners out there. 
  • Folks whose stomachs may not sit well with supplementary fiber will want to avoid this supplement.

Leanbean is made specifically for women — and for those women who are over 40 who may be having a harder time getting rid of unwanted fat, it contains 12 ingredients that may help with fat burn in particular.

Best Belly Fat Burner for Women

Belly fat can be notoriously stubborn, and if you are struggling to target this unwanted fat, this pick may be able to help. 

Burn Lab Pro

Burn Lab Pro contains ingredients that can help your body retain muscle while eliminating fat. One of these is GTF Chromium, which can help your body use glucose for energy instead of storing it as fat. Burn Lab Pro also contains cayenne pepper extract, which may help increase your body’s temperature to increase your metabolism. On top of that, Burn Lab includes HMB — an ingredient you won’t find in many fat burners — that can potentially help your body build and retain muscle mass. It is worth noting that Burn Lab Pro is stimulant-free, which for some may be a plus, but for early morning gym-goers who may appreciate a jolt from caffeine in their fat burner, this may come as a downside to this product. 

Burn Lab Pro
Burn Lab Pro
Burn Lab Pro

This formula includes HMB, an ingredient shown to help retain and build muscle mass. It does not contain any caffeine and has a variety of ingredients linked to muscle retention and fat loss.

Who Should Take Burn Lab Pro

  • Women who are targeting belly fat and want a supplement that can work hard to both burn fat and build muscle. 
  • Bodybuilders who want a fat burner with HMB that may also help them gain and retain muscle mass.
  • Athletes who are looking to avoid stimulants in their fat burner will appreciate that this supplement does not contain caffeine.

Who Shouldn’t Take Burn Lab Pro

  • Buyers on a budget as this is not the least expensive option on this list. 
  • Folks who value a potential jolt from caffeine in their fat burner — this product doesn’t contain any caffeine. 
  • Anyone with a black pepper allergy since this product contains black pepper extract. 

Since belly fat can be fairly stubborn, a fat burner that can help burn fat and build muscle mass may be the most useful. Burn Lab Pro contains GTF Chromium, cayenne pepper extract, and HMB for these purposes.

Best Natural Fat Burner for Women

If you’re looking to potentially burn excess fat in the most natural way possible — that is, without harsh chemicals or stimulants — this product is your best bet.

Legion Phoenix Fat Burner

Legion Phoenix Fat Burner is 100 percent natural and stimulant-free. With no artificial sweeteners, food dyes, or unwanted fillers, you can rest assured that this is a high-quality, natural blend. Legion is also one of the most transparent brands on the market, so they make sure to list exactly what’s included in this fat burner, as well as the dosing and science behind the ingredients. Some of the fat burning ingredients include Thai ginseng, 5-HTP, caralluma fimbriata, and forskolin, which all may help burn fat, suppress appetite, and regulate metabolism. And this product also contains an added dose of B vitamins, which you won’t find in many fat burners. 

Legion Phoenix
Legion Phoenix
Legion Phoenix

Legion's Phoenix comes with an extra absorbable form of synephrine and a high dosage of EGCG to promote its fat-burning properties. Each five-capsule serving provides 834 milligrams of Citrus Aurantium.

Who Should Buy Legion Phoenix Fat Burner

  • Women who appreciate a science-backed reason for why each ingredient in their fat burner was chosen. 
  • Customers who are looking for a reasonably priced fat burner — considering the product you are getting, Legion Phoenix is a fairly cost-effective option.
  • Folks who don’t want artificial sweeteners, food dyes, or fillers in their fat burner. 

Who Shouldn’t Buy Legion Phoenix Fat Burner

  • Women who are pill adverse as it’s recommended you take three of these pills each day.
  • Those who don’t need a long list of ingredients in their fat burner that aren’t dedicated solely to fat burn — you can find other options out there with a shorter list that are just focused on fat burn.

Legion is transparent in their ingredient-listing, provides all-natural ingredients, avoids artificial sweeteners, food dyes, and fillers, and focuses on high-quality ingredients that can help provide the best burn. 

Best Pre-Workout Fat Burner for Women

If you’re trying to nix bottles from your supplement stash, you may prefer to take your fat burner combined with your pre-workout — this pre-workout contains both l-carnitine and caffeine that may help with fat burn. 

Transparent Labs Lean

Though this product isn’t labeled specifically as a “fat burner,” it still has fat burning qualities. It contains your main pre-workout ingredients like citrulline malate, beta-alanine, betaine, and branched-chain amino acids. It also tacks on l-carnitine, which can help turn fat into energy, and caffeine, which can help with fat burn as well as energy levels. Transparent Labs Lean contains no artificial sweeteners, coloring, or preservatives, and it comes in six flavors. However, this supplement is powdered, so if you prefer to take a pill for convenience, you may want to look elsewhere. 

10% Off
Transparent Labs Lean
Transparent Labs Lean
Transparent Labs Lean

Third-party tested and clearly dosed, Transparent Labs LEAN has a huge variety of ingredients for endurance, power, alertness, and focus. Use code BARBEND10 for 10% off.

Who Should Buy Transparent Labs Lean

  • Women who want to take a pre-workout and a fat burner, and would rather just combine the two into one supplement. 
  • Athletes who want to drink their fat burner since this blend comes as a powder that you mix into a liquid.
  • People who want a fat burner that is free of artificial sweeteners, coloring, and preservatives. 

Who Shouldn’t Buy Transparent Labs Lean

  • Folks who are just looking for a fat burner and aren’t interested in pre-workout ingredients can find more fat burn-dedicated products out there. 
  • Women who prefer to take their fat burner in pill form for convenience.

For those who are already taking a pre-workout, taking Transparent Labs Lean can kill two birds with one stone — while it still contains pre-workout ingredients, it also contains fat burning ingredients like l-carnitine to potentially up your fat burn. 

Best Non-Stim Fat Burner for Women

Non-stimulant fat burners are ideal for those who work out late at night or anyone who just prefers to avoid stimulants altogether. This non-stim option is one of our favorites. 

Burn Lab Pro

If you prefer to get your stimulants from coffee or pre-workouts or you just want to skip them in general, Burn Lab Pro nixes caffeine and other stimulants from their formula. They instead include coleus forskohlii root which may help with both fat burn and muscle build, and cultured glucose tolerance factor (GTF) chromium, which can potentially help block fat storage, boost fat burn, and stabilize energy. Burn Lab also includes ß-Hydroxy ß-Methylbutyrate (HMB), which may help build muscle mass, chili pepper extract that may help suppress your appetite, and black pepper extract, which can boost nutrient absorption. Each serving is three capsules, which some may find convenient, while others may see it as too many pills.

Burn Lab Pro
Burn Lab Pro
Burn Lab Pro

This formula includes HMB, an ingredient shown to help retain and build muscle mass. It does not contain any caffeine and has a variety of ingredients linked to muscle retention and fat loss.

Who Should Take Burn Lab Pro

  • Women who prefer to get their caffeine from coffee or pre-workout, not from their fat burner.
  • Anyone who works out late at night or is just trying to avoid stimulants in general. 
  • Bodybuilders who value a fat burner with HMB that may help them build and retain muscle mass. 

Who Shouldn’t Take Burn Lab Pro

  • Folks who would prefer a powder fat burning supplement, or one that doesn’t require you to take as many pills. 
  • Early morning gym-goers who may find value in a caffeine addition to their fat burner.

While some people may like the jolt from caffeine in their fat burner, others may prefer to skip stimulants so they can workout late at night. Since Burn Lab Pro nixes stimulants altogether, this is a solid option for anyone avoiding caffeine.

The Best Research-Backed Fat Burner for Women

We don’t blame you for wanting the supplement you’re taking to be backed by research. After all, it’s going in your body. That’s not to say that every effective product is fully supported by research, but the science-backed claims provide extra peace of mind to some folks. 

Transparent Labs Fat Burner

Transparent Labs has done its homework. Their fat burner contains lots of EGCG, which can help increase calorie burn, theanine and tyrosine that may improve focus, forskolin, and synephrine that can help increase your metabolism, and Coleus forskohlii in a dose that was linked to a “significant increase for lean body mass.” (3).

This product is not as effective as some of the other fat burners on this list for appetite suppression, but it’s still a phenomenal, research-backed fat burner. Transparent Labs also has a stimulant-free version of their fat burner for the same price (Transparent Labs Stim-Free Fat Burner). Both cost about $1.60 to $1.80 per day.

10% Off
Transparent Labs Fat Burner
Transparent Labs Fat Burner
Transparent Labs Fat Burner

This fat burner contains research suggested ingredient amounts of green tea extract, as well as synephrine, and HTP-5, which may suppress your appetite.

Who Should Buy Transparent Labs Fat burner

  • People who are focused on buying products supported heavily by research will appreciate the transparency of this brand. 
  • Folks who want to save a little money as this is one of the less expensive options on this list. 
  • Anyone who wants added ingredients that may help with things outside of fat burn, like focus. 

Who Shouldn’t Buy Transparent Labs Fat burner

  • Those who are caffeine sensitive, as this product contains 240 milligrams of caffeine per serving.
  • People who want a more aggressive appetite suppressant.
  • Non-meat eaters. This product is not vegetarian-friendly

Though this fat burner may not target appetite suppression, it does contain science-backed ingredients in research-backed doses, so you can rest assured you’re getting the right ingredients in the right amounts to have the best chance at hitting your goals. 

The Best Fat Burner for the Money

A quality fat burner doesn’t need to break the bank. You can save some money and still yield results — if you know what to look for. 

Jacked Factory BURN-XT

Jacked Factory sells one of the most reasonably priced fat burners on the market. This five-ingredient fat burner focuses on a weight-loss method called thermogenesis, which is when the internal body temperature rises to elicit a higher calorie burn (as it works harder to cool down) — this product’s cayenne pepper extract can play a key role in this. It also boasts caffeine, which is great for people who take this in the morning and then work out. It’ll essentially double as a pre-workout. It does contain a black pepper extract that can help with absorption, which may be a perk to some, but it’s worth noting for those who may be allergic.

Jacked Factory BURN-XT
Jacked Factory BURN-XT
Jacked Factory BURN-XT

Jacked Factory's formula will save you money, but not at the expense of quality and efficacy. Each bottle contains 120 single-capsule servings that each provide 350 milligrams of L-carnitine.

Who Should Take Jacked Factory BURN-XT

  • Women who want a stimulant, specifically caffeine, in their fat-burner.
  • People who are on a budget and want a more affordable option will like the price tag on this product.
  • Anyone who wants a fat burner that uses thermogenesis to potentially help with fat burn. 

Who Shouldn’t Take Jacked Factory BURN-XT

  • People who want ingredients that may elicit fat loss in different ways (through fat oxidation and metabolic rate).
  • Those who want a more diverse and extensive ingredient list — these aspects usually come at a higher cost. 
  • Women who want a stim-free fat burner — Jacked Factory does include caffeine in this supplement. 

Just because you’re on a budget doesn’t mean you can’t find a high quality fat burner. Jacked Factory proves this with its effective thermogenic formula that contains cayenne pepper extract and caffeine. 

The Best Fat Burner for Appetite Suppression

If you often find yourself feeling hungry when you’re working in a calorie deficit, the proper fat burner may help to curb those cravings by suppressing your appetite.

Leanbean

Leanbean includes many of the big player fat burning ingredients, but it also targets cravings. This formula’s dietary fiber called glucomannan may help swell the stomach slightly to create a feeling of fullness — don’t worry, this is not a dangerous process. Leanbean contains three grams of glucomannan, which is more fiber than you may find in a lot of other fat burners on the market. This product is also marketed specifically toward women, and contains cayenne pepper and green tea extract, which may also help increase metabolism.

Leanbean
Leanbean
Leanbean

This fat burner, geared towards women, promotes fullness with three grams of Glucomannan, and has B vitamins for more energy and focus.

Who Should Take Leanbean

  • Women who are looking for a fat burner that includes fiber for a potential boost in satiety. 
  • Anyone working in a calorie deficit as this product’s glucomannan can potentially help keep you fuller for longer. 
  • Women who are looking for a product that is made for and marketed specifically to them. 

Who Shouldn’t Take Leanbean 

  • Buyers on a budget will find that this isn’t the least expensive option on this list. 
  • Women whose stomachs may not sit well with supplementary fiber may want to steer clear of this product. 
  • The pill-adverse may not like the six-pill serving size here. 

Leanbean’s glucomannan can be helpful for women who are eating in a calorie deficit since it can act as an appetite suppressant and help you feel fuller for longer periods of time. 

The Best Fat Burner for Women’s Bodybuilding

Maintaining a caloric deficit for fat loss can sometimes lead to muscle loss as well. For women who are specifically training to gain muscle — like bodybuilders — this formula can help you keep every hard-earned ounce of muscle mass.

Burn Lab Pro

Burn Lab Pro boasts about its clean and science-backed ingredient label — and for good reason. Their formula includes fat burning ingredients that have been shown to work, such as capsaicin and black pepper extract. They also include a trace mineral called GTF Chromium, which is supposed to essentially coax your body into using glucose for energy instead of storing it as fat. However, what really makes this formula muscle-friendly is the use of HMB or hydroxymethylbutyrate, a chemical that is broken down from the amino acid leucine. One double-blind placebo-controlled study showed that combat sports athletes who took HMB for 12 weeks showed significant body composition changes, meaning they lost fat and either retained or gained muscle mass. (4)

Burn Lab Pro
Burn Lab Pro
Burn Lab Pro

This formula includes HMB, an ingredient shown to help retain and build muscle mass. It does not contain any caffeine and has a variety of ingredients linked to muscle retention and fat loss.

Who Should Take Burn Lab Pro

  • Women who are focused on gaining or retaining more muscle during a cut will appreciate the HMB in this product. 
  • People who want a caffeine-free product. Burn Labs Pro contains none. 
  • Anyone who is concerned with the ingredients in their fat burner being science-backed. 

Who Shouldn’t Take Burn Lab Pro

  • Women who want a more robust ingredient list that includes herbs or even nootropics.
  • Women who aren’t as muscle-focused may be able to find other fat burners to fit different specific needs.

It’s particularly important for bodybuilders to hold onto the muscle mass they gain during a cut, and Burn Lab Pro has ingredients like HMB that may help with this while also potentially increasing fat burn throughout the day. 

What Is a Fat Burner, Anyway?

There are several different ways fat burners can impact women’s body fat levels, and they can be direct or indirect. It’s important to understand this; simply drinking a big glass of water before a meal will probably blunt your appetite. Eating more high-water foods like lettuce and watermelon will keep you fuller for fewer calories, as will high fiber foods. Yet water and watermelon aren’t called “fat burners.”

Lean Muscular Woman
Jacob Lund/Shutterstock

Calories are far and away the most important part of weight management. While some of the ingredients below help to blunt appetite, others take a different approach to “burning fat”. Here are some of the most common ways in which fat burners work.

Increasing Fat Oxidation

Your body converts carbohydrates to energy when it needs fuel quickly. On the flipside, fat, or adipose tissue, is stored as energy for your body to use later. One weight loss strategy is to coax your body into using stored fat as its primary energy source. A 2004 study in Nutrition noted that there are many different exercises and dietary strategies to help the body burn more fat for fuel over carbs. (5) This process is also called fat oxidation, and it’s about as close to a literal “fat burner” as you can get. Popular examples of fat burners for women include green tea extract (more specifically the antioxidant EGCG) and l-carnitine.

Increasing Metabolic Rate

To lose weight, you need to burn calories. There are two primary ways to increase your net calorie burn: 1) decrease the number of calories you consume, 2) increase your energy expenditure with conditioning work, and strength training. If you’re dieting and increasing your activity level, then taking a fat burner with ingredients that may boost your body’s resting metabolic rate, may in turn, increase your net calorie burn. Capsaicin, a compound that makes peppers spicy, is perhaps the most common of those fat burning ingredients, but hordenine and synephrine are also effective.

Decreasing Appetite

There are various ways women can decrease hunger, from prompting hormonal changes to starches that expand in the stomach. Given that the previous two entries seldom add up to more than a hundred extra calories burned, appetite suppression may be the most important part of fat burning. Glucomannan, made from the Japanese konjac tree, is a popular ingredient commonly found in fat burners, but ingredients like 5-HTP and psyllium husk can also have similar effects.

When Should I Take a Fat Burner?

It’s ideal to take fat burners in the morning about 30 minutes before you eat breakfast. Since your metabolism generally slows during your sleep, a fat burner may be able to help kick it back into gear at the start of your day. 

If you prefer, you can also take your fat burner about 30 minutes before you work out. Since fat burners often contain energy-boosting ingredients (like caffeine), they’re potentially useful as a pre-workout supplement. (6)(7)

How Much Do Fat Burners Cost?

To see what you are actually getting for your money when it comes to any supplement, you need to weigh the cost of the container against the number of servings you’re getting in that container. For fat burners, this number typically varies from $0.20 to $2.00 per serving.

Fat burners become more costly as you add in extra ingredients to the fat burning blend. Most fat burners will include the main fat burning ingredients like cayenne pepper extract, caffeine, and green tea extract, while the more expensive products may also include ingredients like HMB or pre-workout blends that can help with goals outside of fat burn.

How We Decide the Best Fat Burner for Women

We won’t try and pull the wool over your eyes and say that every ingredient in each of the fat burners reviewed is 100 percent supported by science. Still, we strive to ensure that studies back a fair amount of the prominent ingredients listed. Some ingredients may have beneficial effects, but their marketing claims are too high. For example, many products will tell you to take a fat burning supplement before a meal, and you won’t absorb any of the carbs. We cut these fat burners for women out of the running.

Dosage

Raspberry ketones are good examples of fat burning ingredients that could work, but virtually nobody uses the dose that produced effects in studies. Now, that doesn’t mean we’re going to disqualify any fat burning supplement that has ingredients like that — if a fat burner has five perfectly dosed fat burning ingredients and one imperfectly dosed ingredient, we’re not going to throw it in the trash — but a lot of ineffective doses will hurt a product’s rating.

Proprietary Blends

Way too many fat burners for women contain interesting ingredients, but don’t tell you how much of each fat burning ingredient they contain. If we don’t know the dose, it’s hard to know just how effective the fat burner is. For that reason, we considered fat burners that heavily rely on proprietary blends less-than-ideal for consumers. 

Price

We also need to emphasize that fat burners vary a lot in their ingredients — some lean more on appetite suppressants than increasing fat oxidation, and so on — so it’s pretty tough to decide which of two fat burners for women is a better value when their ingredients are totally different. Still, $2 per day is a threshold we found acceptable.

10 Common Fat Burner Ingredients

All of the fat burners on our list contain a handful, if not all, of the ingredients in the right doses — some may help boost the body’s ability to burn more calories, or some may help you feel less hungry. These are the most common ingredients you’ll find in fat burners.

Caffeine

Caffeine— which is primarily found in coffee and tea— is a stimulant. Stimulants appear to help with fat loss, as they increase your adrenaline, which appears to help break down fats. (8) Caffeine may also provide you with the energy needed to exercise, and may tell your body to break down fats at the same time. 

Caffeine Fat Burner
Ilja Generalov/Shutterstock

There can also be added calorie-burning benefits from taking caffeine — albeit, under 100 calories a day, according to research published in the American Journal of Clinical Nutrition. (9) If you receive a lot of caffeine from other sources, like coffee or green tea, you may want to look for fat burners that contain little to no caffeine. 

Yohimbine

Another popular stimulant is yohimbine, an alkaloid derived from Central Africa’s yohimbe tree. While it may help reduce appetite, most research revolves around its apparent ability to reduce fat. A 2006 study in Research in Sports Medicine, for instance, saw that soccer players lost two more body fat percentage points than a placebo group over three weeks. (10)

Capsaicin

An active component in chili peppers, capsaicin has been linked to increased metabolism and therefore overall calorie burn. Studies published in Journal of the Medical Association of Thailand and the American Journal of Clinical Nutrition estimate that it’s probably no more than 5 to 50 extra calories per day. (11)(12)

Raspberry Ketones

When a study was published in 2010 in Planta Publica that found raspberry ketones reduced body fat among rodents, supplement companies cashed in. (13) Raspberry ketones are listed among some popular ingredients in fat burners, like Leanbean. Still, there aren’t any conclusive human studies. When you correct for body weight, the studies on rodents used amounts much larger than what you’d find in any fat burning supplement for women.

Hordenine

This molecule found in plants is under-researched overall. However, a promising 2009 study in the Journal of the International Society of Sports Nutrition concluded that this fat burning supplement caused “a significant increase in energy expenditure” along with favorable changes in mood and blood pressure. (14)

Synephrine

Synephrine works synergistically with caffeine. Along with other ingredients, like naringin and hesperidin (all of these are citrus extracts), it can increase your metabolic rate. You can find all of these ingredients combined (except for caffeine) in Legion’s fat burner. A placebo-controlled study in the International Journal of Medical Sciences found that 50 milligrams of the stuff increased the participants’ metabolism by 65 calories without increasing hunger. When combined with food, the calorie burn could be twice that amount. (15

Acetyl-L-Carnitine

Also called ALCAR, this amino acid has been linked to improved focus and some research suggests that it can improve body composition, although this may only be in elderly folks. (16)(17)

Green Tea Extract

Green tea extract is one of the most frequently used ingredients in fat burning supplements. Green tea extract can be good for your brain (18), heart (19), and liver (20). It also contains caffeine and catechins, both of which will help you burn calories. The main focus here is on EGCG, however, an antioxidant that appears to affect both fat mass and fat oxidation. (21)

Green tea extract
5 Second Studio/Shutterstock

A double-blind study from the American Journal of Clinical Nutrition, for example, saw a 17 percent increase in fat oxidation with 366mg of EGCGs. (22)(23) Make sure the label specifies the tea’s EGCG content because some companies just sell capsules of tea leaves, which is not the same.

Green tea extract can have a positive impact on your overall health beyond weight loss. Green tea extract can help reduce the risk of Alzheimer’s and Parkinson’s diseases, as well as cancer. Its compounds can be good for your skin, too. Finally, green tea extract can delay muscle fatigue to let you exercise more efficiently. 

Garcinia Cambogia

This Indonesian fruit gets a lot of hype for some studies, like one published in 2003 in Current Therapeutic Research, that found it may “significantly reduce” belly fat. (24) This isn’t well-supported just yet, though, and other studies have found this “fat-burning” ingredient doesn’t really have any effect. (25)

Green Coffee Bean Extract

Green coffee bean extract is made of unroasted coffee beans. The main fat burning components of green coffee bean extract are caffeine and chlorogenic acid. This ingredient gets a lot of play as chlorogenic acid may inhibit calorie absorption. (26)

Roasted coffee beans contain less chlorogenic acid. This is why extract of unroasted green coffee beans is used in fat burners. One of the most popular studies found that chlorogenic acid-enriched coffee resulted in three times more weight lost than a placebo group (5.4kg versus 1.7kg over 12 weeks). (27) Look for at least 120 to 300mg per day.

What to Consider Before Buying

It’s most important to consider your personal goals before buying a fat burner. The main things you’ll want to consider here are the ingredients you’re looking for, the time at which you’ll be taking your fat burner, and the amount of money you’re willing to put toward this supplement.

Ingredients

Above all, you’ll need to decide on the type of fat burn you are looking for — fat oxidation, thermogenesis, or appetite suppression. Though many fat burners include ingredients that touch all three of these methods, most products lean more heavily toward one of the three. 

And when you are looking at these ingredients, you’ll also want to make sure to stay away from proprietary blends. These blends that may be listed on products do not give you a full look into the ingredients you’re getting and their dosages, so it’s best to steer clear altogether.

Timing

If you prefer to take your fat burner when you wake up in the morning to jumpstart your metabolism, any product on this list should be just fine. However, if you prefer to take it before a workout, you’ll need to consider the stimulants in the product and how that affects your stack. If you prefer to workout late at night, you may want to stay away from fat burners with stimulants like caffeine that could affect your sleep if you take them too late in the day.

Price

Most basic fat burners include the main fat burning ingredients (like cayenne pepper, caffeine, and green tea). If you’re willing to pay a little more though, more premium fat burners may also include extras like HMB or DMAE that can help with goals outside of fat burn. 

Final Word

Remember, fat burners need to be used judiciously and in conjunction with a healthy diet and exercise routine. Certain “fat-burning ingredients” can suppress appetite and increase resting metabolism, but even taking the best women’s fat burner won’t make miracles happen. We’ve listed the popular fat burning ingredients and their effects to help you make the right choice, but some people can be too sensitive to certain actively used ingredients of fat burners, like caffeine. Before you make any changes to your diet and exercise routine, be sure to speak with your physician and discuss the merits of supplementing with fat burning products like these. 

FAQs

Do fat burners work?

They do, but not to the point that pills alone will eliminate a pot belly. “Fat burners” can have several effects, the most useful of which is appetite suppression, as it’s excess calories that cause weight gain. Some ingredients, like cayenne, synephrine, and green tea extract, may help you to burn an extra 50 to 200 calories per day.

What are the best natural fat burners?

Caffeine: Seems to increase adrenaline, which breaks down fats, and decrease the release of fatty acids. Might burn an extra 100 calories or so.

Vitamin D: Some studies found it reduces the amount of new fat cells formed and suppress storage of fat.

Forskolin: It may signal cells to produce more ATP, helping you burn more energy reserves.

Yohimbine: Some find it hard to digest, but 5 to 20 milligrams of this stimulant might lead to more fat loss.

Chili peppers: Cayenne might suppress appetite and increase metabolic rate, perhaps from 5 to 50 calories per day.

Does cayenne pepper actually help you burn fat?

Probably. Research suggests it can increase fat oxidation, cause an increase in calories burned, and suppress appetite. If it suppresses appetite and makes you eat less, that’s the most useful effect, as it otherwise likely only burns an extra 5 to 50 extra calories.

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