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When it comes to losing weight, sometimes diet and exercise alone isn’t enough. That’s why we often turn to weight loss pills and fat burners for a little extra help.

The best fat burners work by putting your body into thermogenesis, a process that turns your body into a fat-burning machine. Fat burners help boost your metabolism, allowing your body to burn calories at a faster rate than normal, even while you’re resting.



Fat burner supplements may also include ingredients that suppress appetite, increase metabolism, and boost energy levels.

However, not all weight loss pills are created equal and some products don’t even work at all.



We’ve reviewed the best thermogenic fat burner supplements on the market to see which products actually work and which ones are just a waste of money. We evaluated each weight loss supplement based on its ingredients, benefits, safety, price, and customer reviews.

If you’re looking for a thermogenic fat burner that can help you reach your weight loss goals fast, here are the top products on the market.

Top 5 Best Fat Burner Supplements of 2021


#1) Leanbean: Best Fat Burner for Women

LeanBean is our top choice for the best natural fat burner for women. Ultimate Life Limited, the company behind this pill, developed the revolutionary supplement to empower women en route to their dream body. It contains powerful ingredients that help you burn fat faster.

The secret behind Leanbean lies in the konjac root, also known as glucomannan. Ultimate Life Limited includes three grams of the dietary fiber in each serving. The ingredient expands in the stomach, so you feel fuller for longer, giving you the willpower to avoid overeating.

Glucomannan serves as an appetite suppressant throughout the day. The dosage, which earned clinical approval in the European Union, allows you to burn available glucose and glycogen before moving on to fat. Even the most stubborn fat doesn't stand a chance when Leanbean takes full effect.

Other ingredients in Leanbean include:

  • Choline
  • Chromium picolinate
  • Vitamin B6 and B12
  • Chloride
  • Zinc
  • Green coffee
  • Turmeric
  • Garcinia cambogia
  • Acai berry
  • Piperine

The benefits of Leanbean don't start and end with fewer cravings for sugary snacks. The weight loss pill provides a kickstart to your fat metabolism and energy levels. That way, you have the vigor to tackle whatever the day has in store for you.

A single bottle of Leanbean comes with 180 capsules, enough for one month. Take two pills in the morning, early afternoon, and evening, each time with an eight-ounce glass of water. Spacing out doses allows Leanbean to work throughout the day.

Leanbean makes it possible for women to get a better body in a matter of weeks. The comprehensive formula keeps your appetite at bay, increases metabolism, and boosts energy. All you need is a healthy diet and regular exercise, and you can kiss unwanted body fat goodbye.

  • Top-Selling Fat Burner For Women
  • Contains Glucomannan, A Clinically Proven Appetite Suppressant
  • Boost Fat Metabolism and Burn More Calories Without Diet and Exercise
  • Improve Energy Levels Naturally
  • 100% Money Back Guarantee

Click Here To Visit The Official Leanbean Website

#2) Instant Knockout: Best Fat Burner For Men



Instant Knockout is the best thermogenic fat burner for men. Professional athletes need elite supplements to stay on top of their game mentally and physically. When they want a proven formula to achieve their goals, they turn to Instant Knockout. It's the only fat burner with endorsements from boxing champions and legendary MMA coaches.

Instant Knockout has all-natural ingredients that supercharge your performance. The stimulant-heavy mixture provides surges of energy so you can crush gym sessions and extra calories. Not only can you start shredding fat, but Instant Knockout will help you gain muscle, too.

One of the core ingredients comes from the world's most popular beverage: green tea extract. The substance speeds up metabolism while breaking down stubborn fat. According to a 2009 study in the International Journal of Obesity, green tea extract can improve fat burning up to 15%.

Other ingredients in Instant Knockout include:

  • Vitamin B6 and B12
  • Zinc
  • GTF chromium
  • Green coffee
  • Cayenne powder
  • Konjac fiber (glucomannan)
  • Caffeine anhydrous

Start transforming your body with four 500 mg tablets per day. The recommendation is to take one pill every three hours, starting in the morning and ending in the evening. The fat-burning supplement will keep you in a perpetual state of thermogenesis, enabling you to see optimal results sooner rather than later.

Instant Knockout caters to men that want to get fit fast. The potent formula comes chocked full of stimulants for a fat-burning experience like no other. If you're sensitive to substances like caffeine, taurine, or ginseng, consider a stimulant-free fat burner to avoid adverse side effects.

  • Burn Stubborn Fat and Supercharge Your Metabolism
  • Powerful Cutting Edge Formula To Suppress Appetite and Cravings
  • Endorsed By Athletes and Professional MMA Fighters
  • 100% Natural Ingredients That Are Safe and Effective
  • Generous Discount For Ordering More Than A One-Month Supply

Click Here To Visit The Official Instant Knockout Website

#3) TrimTone: Top Diet Pills For Appetite Suppression
TrimTone is the top weight loss supplement for women that want to reduce appetite and curb cravings. It's challenging to maintain a healthy diet, especially if you're juggling a job, family, and social life. TrimTone caters to women on the go, with a long-lasting fat burner. This supplement delivers 24/7 fat-burning power, so you can lose weight even when you don't have time for the gym.

The thermogenic fat burner coaxes your body into burning fat for energy. It accelerates your metabolism so that you will utilize more calories than usual. That includes tough-to-target belly fat and love handles.

TrimTone also works by suppressing appetite, thanks in part to glucomannan. The dietary fiber takes up room in the stomach, making you feel fuller throughout the day. The long-lasting feeling of satiation allows you to control hunger cravings and your caloric intake.

TrimTone's ingredients include:

  • Caffeine anhydrous
  • Green coffee
  • Green tea extract
  • Grains of paradise
  • Konjac fiber (glucomannan)

Using TrimTone couldn't be easier. Take the diet pill in the morning before breakfast with a glass of water. That's it. The one-a-day formula will keep your appetite in check for the next 24 hours.

Swiss Research Labs Limited, the company responsible for TrimTone, provides a 100-day money-back guarantee for its products. TrimTone also comes with free delivery and Good Manufacturing Practices certification. Buy the weight loss pill today, and you can take advantage of the company's multi-buy discount.

Appetite suppressants are one of the most effective ways to burn fat.
Consuming fewer calories forces the body to use fat deposits for energy, and in the process, helps you lose weight. The fact that TrimTone comes in one easy-to-use capsule is a pleasant bonus.

  • Burns Stubborn Body Fat and Speed Up Metabolism Even While Resting
  • Convert Stored Fat Into Energy Through Thermogenesis
  • Curb Cravings and Reduces Appetite
  • Once A Day Capsule To Boost Metabolism
  • 100% Natural Safe and Effective Ingredients
  • 100 Day Money Back Guarantee
Click Here To Visit The Official TrimTone Website

#4) PhenQ: Best Belly Fat Burner
PhenQ is the best belly fat burner on the market. This innovative supplement works on multiple fronts, providing you with the support to turn your dream body into a reality. One pill per day can boost metabolism, curb cravings, and elevate mood and energy levels.

More than 190,000 people have already seen the benefits of PhenQ. So, how does it work? The secret is a-Lacys Reset, a trademarked ingredient that transitions your body into a state of thermogenesis.

A faster metabolism goes hand-in-hand with effective weight loss. Many clinical trials back up these claims. Participants who took a-Lacys Reset lost 7.24% of their body fat and 3.44% of their body weight, significantly more than those in the control group. Participants were also able to add 3.80% muscle mass during the trial.

Each PhenQ capsule has the following ingredients:

  • a-Lacys Reset
  • Capsimax powder
  • Calcium carbonate
  • Caffeine anhydrous
  • Chromium picolinate
  • L-carnitine fumarate
  • Nopal
PhenQ contains all-natural ingredients, like many of the other fat burners on our list. That means most people will have a rewarding experience with no nasty side effects. The fat-burner supplement also works equally well for men and women and fits vegetarian and vegan diets.

PhenQ stands out as one of the most reliable weight loss supplements on the market. It's ideal if you want to lose more than 30 pounds. PhenQ even comes with a 60-day money-back guarantee so that you can try the fat burner risk-free.
  • 190,000 Plus Satisfied Customers!
  • Best Thermogenic Fat Burner For Burning Stored Fat
  • Scientifically Proven Weight loss Ingredients
  • Easy Calorie Cutting By Curbing Appetite and Hunger Cravings
  • Blocks Fat Production, Improves Mood and Energy
  • 60 Day Money Back Guarantee and Free Shipping
Click Here To Visit The Official PhenQ Website

#5) PrimeShred: Top Rated Fat Burning Pills For Men

PrimeShred is the best thermogenic fat burner for men looking to get shredded while building muscle. In a perfect world, you could burn fat while simultaneously building muscle. Now you can, in this world, with PrimeShred. The up-and-coming fat burning supplement delivers the potent formula men need to maximize fat loss and muscle gains.

PrimeShred uses three methods to help you lose weight. First, the fat burner makes it easier for your body to break down fat cells and move them into the bloodstream for energy. PrimeShred activates lipolysis, thanks to ingredients such as rhodiola rosea root, capsaicin, and green tea, so your body will burn more fat than ever.

Second, it speeds up your metabolism, utilizing a higher rate of calories and fatty acids. Third, PrimeShred contains stimulants to sustain your energy levels. This energy-booster allows you to plow through demanding workouts while staying alert and focused.

PrimeShred diet pills contain the following ingredients:

  • L-theanine
  • Green tea extract
  • Green coffee
  • Rhodiola rosea root
  • Caffeine anhydrous
  • Cayenne powder
  • Vitamin B complex
  • Dimethylethanolamine
  • L-tyrosine
  • Bioperine

PrimeShred fat burners work best when you take three pills per day. Consume one before breakfast, lunch, and dinner. If you don't love the results you see within 100 days, you can return your fat burners for a complete refund.

Many fat burners fall short because they're one dimensional. PrimeShred excels because it promotes fat loss on top of supporting a higher metabolic rate and energy levels. Men looking for the complete package should strongly consider PrimeShred as their weight loss supplement of choice.

  • Activates Specific Fat-Burning Hormones To Lose Pure Fat and Transform Your Body
  • Increase Metabolic Rate and Burn Fat With The Thermogenic Fat Burner Process
  • Clinically Backed Ingredients To Amplify Your Energy and Mental Focus
  • 100 Day Money Back Guarantee and Free Shipping

Click Here To Visit The Official PrimeShred Website

How Do Fat Burning Supplements Work?

No two fat burners work the same way. That said, many supplements have overlapping similarities. Arguably the most common mechanism is diet-induced thermogenesis.

Thermogenesis comes from the Greek words "thermos," meaning heat, and "genesis," meaning birth or creation. The process involves increasing energy production through a higher metabolic rate. One of the notable side effects is a higher internal body temperature.

Thermogenic fat burners target carbohydrates for energy first, hindering high-calorie substances from turning into fat stores or entering the bloodstream. Once thermogenesis metabolizes available carbohydrates, it moves to fats. Once your body begins using fat for energy, you'll start seeing weight loss.

According to a 2004 analysis from Nutrition and Metabolism, diet-induced thermogenic fat burners increase energy expenditure by 5% to 15%. As long as you maintain the same caloric intake and exercise levels, you can convert that energy expenditure into fat loss. The bottom line is that thermogenesis is a powerful and natural way to get rid of unwanted fat.

Health Benefits of Taking a Natural Fat Burner Supplement

Increased Energy

Weight loss can be exhausting, especially if you hit the gym regularly. Energy boosters, like caffeine, return some pep in your step. The ingredient ensures that you don't suffer from fatigue during your workouts or a lack of motivation.

Reduced Body Fat

While fat burners don't directly metabolize fats, they influence critical bodily functions that enable weight loss. For example, thermogenic supplements raise your internal body temperature. Your body breaks down fat as a response to get rid of heat. As a result, the thermogenic fat burner indirectly transforms you into a slimmer and trimmer version of yourself.

Improved Focus

Look for focus enhancers if you want the best results on your weight loss journey. Supplements that improve concentration give you the extra strength needed to get daily exercise and say no to desserts. They can also lift your spirits if you're feeling down.

Appetite Suppression

We all deal with hunger when trying to lose weight. Organic fat burners suppress appetite, so you don't feel hungry all day. For instance, green tea coaxes the body into producing more leptin, a hormone that signals to the brain that you're full.

Boost Metabolism

Your metabolism involves all the chemical reactions in the body, including digestion, fat storage, and energy usage. When you search for the best fat burner, look for supplements that can raise your metabolic rate. The boost allows you to burn more calories and gradually see weight disappear.

Natural Fat-Burner Ingredients Found in Weight Loss Pills

Green Tea Extract

Green tea extract contains the antioxidant epigallocatechin gallate, which amplifies short-term fat burning. The tea also influences norepinephrine production, a hormone that allows people to burn fat. You can start losing weight by consuming the extract or drinking green tea.

Green Coffee Bean Extract

Multiple studies tout green coffee bean extract as an ideal weight loss supplement. The presence of caffeine and chlorogenic acid helps you control your appetite, regulate blood sugar levels, and lower blood pressure. Research from Gastroenterology Research and Practice found that it’s beans can help consumers lose 5.4 pounds or more. Don't roast your coffee beans, though; otherwise, you'll diminish the concentration.

L-Carnitine

L-carnitine is an amino acid that transports fatty acids into the mitochondria, where the cell can use it for energy. The essential nutrient also plays a central role in anti-oxidation and disease prevention. Studies in animals and humans suggest that it may assist in weight loss.

Raspberry Ketones

Raspberry ketones are the compound that makes raspberries smell like raspberries. Some weight loss pills contain a synthetic version that increases adiponectin in the body, a hormone that researchers believe aids weight loss. Studies on rats suggest that the ingredient also makes it easier for the body to metabolize fat.

Black Pepper Extract

Black pepper extract provides a natural way to combat obesity-related diseases. The compound mirrors Grains of Paradise—Aframomum melegueta, a plant in the ginger family similar to cardamom—in its ability to inhibit fat cell proliferation. That means that new fat cells can't readily form and contribute to weight gain. Black pepper extract also has an extensive history of treating diarrhea and cholera in Asia.

Garcinia Cambogia

Garcinia cambogia comes from the Malabar tamarind, a small pumpkin-like fruit found in Southeast Asia, Africa, and India. The ingredient contains fat blockers, notably hydroxycitric acid (HCA), which prevents the body from creating fat-producing enzymes. Garcinia cambogia also increases serotonin production, which researchers say reduces cravings.

Caffeine

Caffeine is the most widely consumed metabolism-booster in the world. A daily dose can raise your metabolism by 3% to 11% and elevate fat-burning as much as 29%. Too much caffeine can cause short-term side effects, like irritability, diarrhea, and insomnia.

Cayenne Pepper Seeds

Cayenne pepper seeds act as natural thermogenic capsules. The pepper can raise your internal body temperature by a few degrees. Your body will try to dissipate the heat, and in the process, metabolize fat cells. Researchers believe that cayenne pepper seeds can help burn up to 50 extra calories per day.

Chlorogenic Acid

Try supplements containing chlorogenic acid if you want to lose weight and get your blood sugar levels under control. The compound slows carbohydrate absorption, limiting the flow of glucose into the digestive tract. The stifling mechanism prevents weight gain while mitigating cholesterol and other obesity-related health issues.

Conjugated Linoleic Acid

Conjugated linoleic acid (CLA) is a trans fat found in everyday foods like meat, milk, and butter. The compound plays a vital role in increasing metabolism and fat breakdown and may improve digestive health. While researchers don't entirely understand CLA, some believe it can have damaging side effects over the long-term.

Factors to Consider Before Buying Fat-Burner Supplements

Clinically Dosed Ingredients

"Clinically dosed" are two small-but-important words to look for while researching your fat burners. Clinically tested means that researchers have determined the optimal amount of each ingredient for the desired medical purpose. If your fat burners don't have scientific research backing the dosage, it's impossible to know if the weight loss supplements will be sufficient.

Stimulant or Non-Stimulant?

Amp up your fat-burning potential with a stimulant-laden supplement. These energy boosters provide the pep you need to stay on top of your gym sessions and daily routine. Stimulants can also help you lose excess weight because some substances, like caffeine, double as appetite suppressants.

Stimulants aren't for everyone, though. If you get jittery after a cup of coffee, you should look for an alternative. For example, fat burners like Leanbean enable consistent weight loss without side effects from over-stimulation.

Price

The perfect body is priceless. Well, that's until you factor in the monthly price tag for fat burners. Most supplements cost around $50 per month, though the cost varies based on the brand and quality. Make sure to look for multi-buy discounts so that you can save money on bulk purchases.

Number of Servings in a Bottle

It's hard to go wrong with fat burners that contain 30 to 60 pills per month. The daily tablet provides a simple and straightforward way to bolster your weight loss regimen. Some fat burners require taking tablets three or four times a day, which can feel overwhelming if you're not detail-oriented. In those situations, set an alarm to remind you to take your fat burners throughout the back.

Money-Back Guarantee

It might take some time for you to find the best fat burner. That may entail trying more than one product until you find something that delivers the results you want without side effects. Give yourself peace of mind during these initial stages by shopping with companies that offer money-back guarantees. That way, you can get a complete refund if it's not right for you.

Things to Avoid When Choosing Fat-Burning Pills

Aggressive Marketing Tactics

You should select the best thermogenic fat burner, not the other way around. Companies that aggressively push their products deserve a healthy dose of scrutiny. Upfront marketing tactics often suggest that the manufacturer is trying to compensate for a shortcoming elsewhere.

Here's the bottom line: you should pick the right fat burner for your needs and health. The thing is that your needs are unique. You should find a product that fits within your diet, budget, and schedule. When it comes to losing weight, don’t let pushy marketers tell you the right way for you to lose weight or what weight loss program or exercise program you should do.

Proprietary Formulas

It's impossible to overstate the importance of knowing what goes into your body. While proprietary formulas (that is, recipes kept secret) may appear state-of-the-art, they prevent consumers from understanding the ingredients. Make sure your manufacturer of choice provides a complete list of ingredients, with their amounts, on its website and the label.

Be leery of any manufacturers that are less-than-forthcoming about what's inside their weight loss supplements. You shouldn't risk harmful side effects or an allergic reaction for the sake of weight loss. Your number-one priority should be finding a fat burner that works with your body, not against it.

Too Many Stimulants

Many fat burners contain stimulants to help you achieve the best results. That's because stimulants break down fat and move the byproducts into the bloodstream for energy. If you don't have a lot of available energy, you may feel tired or sluggish.

Stimulants provide the boost you need to lose weight, but the bottom line is that you could get too much of a good thing. An excessive amount can leave you with a host of side effects, including nervousness, restlessness, insomnia, and jitters. Reading the ingredients will help you lose weight without unwanted complications.

How to Get the Most Out of Fat Burners

Diet and exercise serve as the backbone of effective weight loss. A healthy diet can prevent long-term diseases, such as obesity, cancer, and type II diabetes, while exercising allows you to build strength and stamina. A fat burner makes diet and exercise more sustainable, even if you have lofty weight-loss goals.

For instance, you might go for a long run every day. When you get home, you find yourself famished and craving a sugary treat. Indulging in an ice cream cone or donut would instantly negate your calorie-burning hard work from running.

Weight loss supplements like Leanbean work by suppressing appetite. They create the illusion that you're full, even when you're not. That way, you can go for your long run and avoid overeating afterward, reaping all the benefits of your substantial caloric burn.

Are Fat-Burning Supplements Safe for Weight Loss?

Each fat-burner supplement on our list contains all-natural ingredients. An organic formula ensures that you get the purest nutritionist possible. The last thing you'd want is to fill your body with harmful synthetic or artificial ingredients that have little-to-no effect on your weight loss.

Make sure to read the label before you commit to a weight loss supplement. Some options, such as Instant Knockout, contain stimulants such as caffeine and ginseng. If you're sensitive to stimulants, consider a stimulant-free option to avoid unwanted side effects.

Who Should Use Fat Loss Pills?

Millions of men and women struggle to lose weight, even with a healthy diet and exercise. Today, you don't have to struggle any longer. Fat burners provide effective support and performance to slim down to your ideal body weight.

The best fat burners work in tandem with your existing regimen. They offer the assistance you need to stop overeating and muscle through demanding gym sessions. That also means few-to-no side effects other than those we've mentioned (such as the effects of caffeine and stimulants). The fact that many weight loss pills double as mood and energy enhancers serves as a bonus.

Final Thoughts – Are Thermogenic Fat Burners Right for You?

The bottom line is that losing weight is tough, but it doesn't have to be with our fat burner brand overview. Fat-burner supplements give you the boost necessary to conquer the most ambitious weight-loss goals. Whether you want to lose more than 30 pounds or get fit like a professional athlete, you will find an option for you.

Each fat burner has a unique formula. Take the time to find one that works best with your body and diet. That way, you will see results that you love when you look in the mirror.

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