Best Supplements

Best Fat Burner Supplements in 2020

Fat burner supplements

Are you currently in quest of researching and finding the best fat burner supplement for your fitness goal? You’ve landed in the right place!

When it comes to health and fitness, there’s simply no such thing as second best, and this especially true when you’re thinking about the right kind of fat burners to help you on your journey.

Due to the fact that the fat burner market is so vast and varied, knowing which are the best ones for you and your body is key to achieving your fitness goals.

In this article, we’re going to talk about what a fat burner is, how it works, and review some of the best, high-impact fat burners for 2020.

Best Fat Burners in 2020

It goes without saying that on the market, there is a wide range of fat burners designed and produced by fitness manufacturers, which means that it’s important to know which ones are worth spending your hard-earned money on.

Best Budget Fat Burner Supplements
For those on a budget, we have no doubt that with dedication and a drive for fitness, both Instant Knockout and Phoenix are capable products that can get to your best.
Vegan Friendly Fat Burner Supplements
And as you’ve probably noticed, we love investigating alternative products, which is why we’ve also included two vegan-friendly products; Leanbean and Performance Lab SPORT.

Because Leanbean is specially designed for women, if you’re both a vegan and a man, Performance Lab SPORT is simply one of the best vegan-friendly options out there.

Women Fat Burner Supplements
If you’re a lady, however, and you want to know which is best, Leanbean or Hourglass, this depends on what you think is right for your body, but rest assured, they are two of the best fat burners for women on the market in 2020.
Premium Fat Burner Supplements
When it comes to premium fat burners, Hunter Burn is great for those with busy schedules, while Transparent Labs Physique Series is suitable for those just starting out their fitness journey.

Now, let’s take a deeper look at some of the best fat burners on the market in 2020.

1) Instant Knockout 

Instant Knockout Fat Burner Review

Referred to by some as the Mike Tyson of fat burners, Instant Knockout sits on the cheaper end of the fat burner scale but is one openly used and promoted by an array of MMA fighters.

Designed, formulated, and manufactured by scientists at one of the most respected supplement companies in the UK, Roar Ambition, Instant Knockout provides powerful returns without any harsh side effects.

Sleekly packaged in a transparent red fist, the product, despite all its bombast, makes no false claim, and its arsenal of athlete backers and positive reviews goes to show how much it is loved and used.

Key ingredients

Like all products from Roar Ambition, Instant Knockout contains only natural and science-backed ingredients of the highest quality. Let’s take a look at some of the main ones:

  • Cayenne Pepper Seeds: An extract known to lower blood pressure, these are designed to give a kick start to your metabolism and is a vital ingredient found in higher-end supplements.[1]
  • Green tea: Popular in many fat burners, green tea comes packed with bioactive polyphenols to ramp up your metabolism along with a healthy dose of caffeine.[2]
  • Zinc: A nice additive to see, zinc is essential for protein synthesis and helps boost testosterone production.[3]
  • Vitamins B6 and B12: Essential for energy boosts during exercise, vitamins B6 and B12 can help give you that extra push towards your fitness goals.[4]

How to take it

The beauty of Instant Knockout is that it is one of the easiest fat burners on the market when it comes to consumption.

Many athletes have noted that they have found the best results when they have taken four capsules per day in and around their exercise.

Due to the fact that it has green tea in it however, we do not advise taking it before you go to bed.

  Backed by MMA fighters.
Loyal fanbase.
Quality blend.
90-day refund policy

Direct purchase from manufacturer.
Not suitable for vegans or vegetarians.

Do you get Value for Money?

The honest answer here is that many cheaper products claim to do the same thing as Instant Knockout. None, however, are made from the same active ingredients that provide the results you are looking for.

This is a premium product, and so it attracts a premium price. However, we recommend you don’t take price as the deciding factor. Instant Knockout is a favorite product for an excellent reason — it does what it claims to do!

Roar Ambition currently has an offer on where you can get 4 bottles for the price of 3.

instant knockout deal

So, if you are considering buying this product, now is the best possible time. It may be worth checking out the company’s other products too, as they cater to a wide range of different types of supplements.


A product on the cheaper end of the scale, yet still a premium product, you’ll be hard tasked to find such a quality product for a lower price.

With the right kind of exercise and diet, we’re sure that Instant Knockout will provide the boost you need to get you to your fitness goals without breaking the bank.

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*Individual results may vary. Please speak with your doctor or physician before undertaking any new weight reduction, supplement, or exercise regime.

2) Leanbean Fat Burner

A fat burner designed for women who want to achieve a great level of fitness, Leanbean is probably one of the best-reviewed fat burners for women on the market.

Containing no less than 12 all-natural ingredients, the product is there to give you the confidence that you are enjoying a health supplement with no added chemicals (or banned substances).

Formulated to give you the extra edge you desire, Leanbean is perfect for both vegetarians and vegans.

Key ingredients

  • Acai Berry: Native to South America, Acai Berry helps to reduce fasting glucose, cholesterol and is even known to increase plasma antioxidant capacity.[11]
  • Turmeric: A critical antioxidant that contains curcumin, Turmeric is a healthy alternative to Caffeine Anhydrous, which is primarily found in male fat burners.[12]
  • Chromium Picolinate: Shown to support a normal macronutrient metabolism, Chromium Picolinate has been found to contribute to maintaining healthy glucose levels and is an essential trace mineral.[13]
  • Green coffee: This is a nice additive that is derived from the lost compounds of brown coffee beans.[14]

How to take it

For optimum results, you should take one capsule four times per day when eating healthy snacks and meals.

The makers of Leanbean also make it clear not to exceed this dose.

A cutting-edge blend.
Optimal dosing.
90-day refund policy

 Only available from the maker’s website.
Does not advertise calories on packaging.

Where can you buy Leanbean?


Leanbean Bikini Body Bundle

Leanbean is only available from the Leanbean official website. If you purchase Leanbean from any other source, the money-back guarantee will not be honored.

Price: $59/44.99/£39 for 1 month supply

Pro Tip: we strongly recommend that you purchase their Bikini Body Bundle, which is a 3-month supply (3 bottles) PLUS 1 month supply for free!


At $59 for 120 capsules, this is a premium product that doesn’t burst the bank.

The fact that it’s aimed at both vegans and vegetarians is also a bonus, because this is an often-overlooked market, especially for products that only cater to one gender.

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*Individual results may vary. Please speak with your doctor or physician before undertaking any new weight reduction, supplement, or exercise regime.

3) Hourglass Fit Fat Burner 

Hourglass Fat Burner Review

A newer addition to the market and one that is designed for women, Hourglass claims to be intelligently designed for ladies that want to feel confident about their fitness and figure.

Designed and manufactured by Propura, the supplement fits neatly onto the premium shelves of the internet and claims to offer only the right doses of the best possible supplements.

It’s always interesting to see how a fitness product will fare when it’s only marketed to one gender or one specific group, but the uptake seems to have been positive so far.

Key ingredients

Like Instant Knockout, Hourglass Fit claims to have been specially formulated to give your body just what it needs to help you achieve your fitness goals — without any unnecessary additives.

  • Guarana: A well-known medical herb and a natural source of caffeine, Guarana is often considered to be a cornerstone of premium fat burners.[8]
  • Glucomannan: Often promoted as a fat loss supplement in its own right, Glucomannan is another high-quality ingredient found in premium burners.
  • Vitamin D3: A welcome addition for any fat burner, vitamin D is excellent for helping to support active and healthy bones.[9]
  • Capsimax: Containing powerful capsaicinoids, capsimax is an ingredient from red peppers and it has been shown to keep hunger at bay during studies.[10]

How to take it

Most people take one Hourglass capsule three times per day around mealtimes.

Bear in mind however, you will only get the best results, or any at all, if you stick to a healthy diet combined with a good exercise regime.

No nonsense.
Reputable company
Designed for women.
Low stimulant.

You have to buy it directly from Hourglass itself.
Premium product.

Do you get good value for the money?

Our team believes that this weight loss supplement does provide top value for your money. Each ingredient plays a crucial role in helping women meet their aesthetic and weight loss goals.

Best of all, Hourglass Fit comes with a 90-day money-back guarantee. This promise is unusual, especially for a fat-burner supplement.

We recommend that you’re taking up their Hourglass Ultimate Fit bundle offer where you get 2 FREE bottles when you purchase 4 bottles. This bundle will give you a 180-day supply of Hourglass!

Hourglass Offer

If you are considering taking this product, we advise you to do so under a Doctor’s supervision. 


For ladies that want to burn fat with supplements that are specially catered to their bodies, then Hourglass Fit is the product for them.

Because it doesn’t have any added stimulants, it also means that it won’t override your system and give you the jitters, which means you can take it at any time of the day and during just about any activity.

However, it may or may not be suitable if you’re doing intermittent fasting. We strongly advise that you speak to your doctor or physician for health and safety reasons.

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*Individual results may vary. Please speak with your doctor or physician before undertaking any new weight reduction, supplement, or exercise regime.

4) Hunter Burn

Hunter Burn Premium Fat Burner Supplement

Another fat burner supplement from the labs of Roar Ambition, Hunter Burn is the company’s premium product and is one that has evoked a landslide of rave reviews.

With a more tasteful design than Instant Knockout, Hunter Burn offers a sleek matte black and yellow carton containing no less than 180 capsules.

Designed to get you “through your toughest days” the product is slightly more expensive than most on the market, but does contain a clean list of ingredients to boot.

Key ingredients

  • L-Theanine: An ingredient designed to help stop your comfort eating, L-Theanine is a great addition that has been shown to help lift your mood.[5]
  • Cayenne Pepper: Popular among many fat burners, cayenne pepper is designed to give you that specific burn so that your body goes into action by actively trying to cool itself down.[6]
  • White Kidney Bean: Helping to keep hunger at bay, white kidney beans contain a dietary carbohydrate blocker that helps break down complex carbs.[7]
  • Vitamin D: A welcome ingredient to any fat burner for when the sun is not out, vitamin D helps keep your skin and bones healthy.

How to take it

It is advised that you take one capsule of Hunter Burn around six times per day, preferably around healthy snacks or meal times.

Keeps hunger away.
Ideal for busy schedules.
No caffeine.

Six times per day is a lot.
Premium price.

Where Can I Buy It?

The Hunter Burn Premium Fat Burner is only available to order from the website. You cannot buy this product on the high street retailers or Amazon, meaning that it needs to be an exclusive purchase.

The site features a safe and secure shopping portal and is fully certified to the current requirements, but be aware you cannot order to repeat – Hunter only takes one order at a time, which is indicative of any responsible supplement brand.

You also get free delivery if you order two or more bottles or, we strongly recommend you check out the offer of an extra bottle when you buy three at once — that’s four bottles for the price of three. Visit the Hunter website directly if you want to purchase the product.


A hefty price-tag for sure, but one that could be worth paying if you’re on the lookout for a premium fat burner that can get you to your goals and beyond.

With free delivery in both the UK and the US, the product is worth it should you decide to take up the offer of a bundle, giving you an extra pack on top of the three that you have already bought.

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*Individual results may vary. Please speak with your doctor or physician before undertaking any new weight reduction, supplement, or exercise regime.

5) Transparent Labs PhysiqueSeries

A fat burner from one of the most reputable brands in health and supplements, Transparent Labs Physique Series, offers a careful blend of natural ingredients that have been shown to provide a great benefit for those with specific fitness goals.

Containing two key thermogenic compounds, the supplement is a sure winner for those that take their fitness seriously.

Key ingredients

  • 5-HTP: A surprising inclusion, each two-capsule serving contains 150mg of 5HTP, and is known to help you feel full, as well as improve your melatonin production.[18]
  • L-Theanine: Found in tea leaves, L-Theanine is, of course, a regularly occurring ingredient in fat burners and is a consistent addition to pre-workout supplements.
  • Cayenne Pepper: Another top-quality ingredient, we’re not surprised to see cayenne pepper here as it has extreme thermogenic fat burning capabilities.[19]
  • Green tea extract: A great addition to any formula, green tea extract is full of antioxidants and can help keep hunger at bay.

How to take it

Each bottle contains 120 capsules per day, and it is recommended that you enjoy around four per day roughly an hour before meals.

Do not take more than four capsules within a 24-hour period.

Quality ingredients.
Calming nutrients.
Best for beginners.
 Highly rated.

Glucomannan, the dietary fibre, not included.
Some ingredients are underdosed.


With the right kind of diet and dedication to fitness, we’re sure that Transparent Labs PhysiqueSeries fat burner can get you where you need to be.

On the other hand, some have noted that a couple of ingredients aren’t measured in the same quantities of other brands, so it might be an idea to compare others on this list before you commit to buying.

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*Individual results may vary. Please speak with your doctor or physician before undertaking any new weight reduction, supplement, or exercise regime.

6) Performance Lab SPORT Fat Burner 

Performance Lab SPORT Fat Burner

An affordable solution for athletes looking for a highly regarded fat burner, Performance Lab SPORT is a lower shelf supplement that can deliver powerful results.

Beautifully designed, Performance Lab SPORT Fat burner is GMP, allergen, gluten and SOY free, making it perfect for vegetarians and vegans alike.

Key Ingredients

  • Coleus Forskohlii: Impossible to pronounce, but a worthy herb found in many quality supplements. It can help the body optimize hormonal cell messengers.[15]
  • Beta- hydroxy beta-methylbutyrate: Better known as HMB, this nutrient helps to eradicate enzymes that can damage muscles. It also encourages protein synthesis.[16]
  • Black pepper extract: A great plus for any fat burner, black pepper extract helps to boost energy and inhibit the formation of new cells.[17]

How to take it

Unlike other fat burners in this article so far, this product is designed to be taken around 15 minutes before exercise.

It is also advised that you take it with some sort of fitness snack so that the capsule is better absorbed.

No caffeine.
Intelligent blend.
Works with fasting.

At $50 per tub, there are cheaper brands on the market.
 No stimulant kick if you need it.


Free from a variety of products, Performance Lab SPORT Fat Burner is great for vegetarians, vegans, and also those who are unable to consume gluten.

Intelligent in design and branding, check out the official website and ensure to keep an eye out for deals that can help you get better bang for your buck.

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*Individual results may vary. Please speak with your doctor or physician before undertaking any new weight reduction, supplement, or exercise regime.

7) Phoenix Fat Burner

Phoenix Fat Burner

A caffeine-free fat burner available for both men and women, it’s also one of the few that is available on the mass market.

Bear in mind, however, that most manufacturers sell their products exclusively to ensure that they can maintain quality and avoid knock offs.

Key ingredients

  • Green tea extract: A valuable addition to any fat burner, this is made slightly more special as Phoenix uses EGCG, which is a crucial active ingredient.[20]
  • L-Tyrosine: A great ingredient for pre-workouts, L-Tyrosine helps to build protein, which is especially useful if you’re taking part in weight training.
  • Forskolin: Sourced from the Indian herb, Coleus forskohlii, forskolin prompts cells to produce something known as ATP, which helps the body burn more energy from its reserves.[21]

How to take it

Each bottle of Legion Phoenix Fat Burner will bag you no less than 150 capsules, which is higher than most.

The reason for this, however, is that the burner has been designed so that you take three capsules with breakfast and two later in the day with another meal.

A bottle, therefore, should last you a good month.

Widely available.
Well-known brand.
Stimulant free.

Misses favourite ingredients.
 Varied reviews across the internet.


Phoenix fat burner is a good product that is sure to get you closer to your fitness goals at a fair price. That said, there could be other burners on the market that offer a better product, so ensure to read through our entire list so that you get the product that is best for you.

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*Individual results may vary. Please speak with your doctor or physician before undertaking any new weight reduction, supplement, or exercise regime.


What Is a Fat Burner?

Throughout the world of sports and fitness, athletes and hobbyists alike regularly enjoy a range of supplements, including vitamins, proteins, nootropics, and of course, fat burners.

Put simply, fat burners are a type of supplement that specifically targets and supports the body’s metabolism to spur it into life and to help reduce the amount of fat absorbed throughout the day.

Generally, fat burners come in capsule form and are taken at regular periods, although some are also available as a pre-workout supplement.

It’s important to remember, however, that fat burners are not magic solutions that will help you lose weight. You will need to enjoy them with a healthy diet and a consistent exercise regime.

How Do Fat Burners Work?

To understand how fat burners work, you need to know that there are two different kinds of fat cells in the human body:

  • white fat cells, and
  • thermogenic fat cells.

White fat cells store energy and transmit hormones when the body sends nutritional signals, while on the other hand, thermogenic cells help to defend the body against obesity.

The latter also helps the body resist hypothermia during extreme environmental conditions.

Fat burners target thermogenic fat cells, and a process called Lipolysis can also help burn fat cells. This is when fats (or lipids) are broken down through hydrolysis, which helps the energy within fat cells fuel the body.

With this specific process in mind, fat burners are designed to increase metabolism so that the body creates more energy through sourcing stored fats and energy.

When it comes down to it, fat burners are the gear sticks to the metabolism that switches the body into a higher-order so that it burns more calories during and around exercise.

What to Watch Out For (and Avoid) With Fat Burners

Like any fitness supplement, you need to ensure that you’re buying the best products for your personal fitness goals.

Magic formulas don’t exist

Secret recipes and magic solutions are (combined) the number one claims to avoid. Any product that makes such claims is likely to be ineffective, and if you’re unsure about any brand, always check online for customer reviews.

Check for a fully dosed formula

Fat burners that require you to take a few capsules a day are ones to look out for as it means that the supplements provide multiple but steady dosing to deliver the ingredients on the label.

Avoid proprietary blends

A proprietary blend is when a manufacturer does not disclose the dosage of individual capsules. Instead, you are likely to see a “general” blend on the label.

Unfortunately, this means that you have no idea what you’re getting in each dose, so always make sure to check the label carefully.

Seek brand names

Typically (but not always), the best fat burners are only available from the brands that design and manufacture them themselves; so, this tends to be a sign of a good transparent product from a company that cares.

When it comes to prices, you shouldn’t find anything above the $50 range (at the very most), and take great care on fat burners below $20 when bought in bulk.

Best Fat Burner Ingredients

Every fat burner will have its own specially designed blend of ingredients, and some fat burners will exhibit a good mix, while others might leave key additions, so it’s always best to research every burner.

Here is a list of quality ingredients found in many quality fat burners.

Green tea extract

Research has shown that regular consumption of green tea can help with fat loss, so this is a key ingredient in many fat burners.

Additionally, green tea also contains polyphenols, which are themselves composed of catechins and provide a variety of benefits for the body including:

  • Fighting and eliminating cancer-causing free radicals.
  • Reducing the build-up of plaque within veins.
  • Reducing the chance of blood clots.
  • Lowering cholesterol.
Green coffee bean extract

A supplement extracted from (you might have guessed it) green coffee beans, this extract is loaded with antioxidants, including Chlorogenic Acid — an element that is mostly removed when coffee beans are roasted.

Green coffee bean extract can provide a range of benefits, including:

  • Promoting weight loss.
  • Lowering blood pressure.
  • Aiding the fight against Type 2 Diabetes.
  • Improving energy.
Chilli peppers

Some form of chili pepper is often found in the best fat burners in the form of capsaicin, which is the element of the pepper that does the fat burning work for you.

Capsaicin has been shown to provide a range of benefits, including:

  • Boosting metabolism.
  • Increasing the body’s ability to burn calories.
  • Curbing hunger.

Turmeric is a dark yellow spice that is taken from the root of curcumin plant.

As well as adding flavor to food, it is a regular addition to fat burners as it creates metabolic heat and is high in fiber.

Another bonus is the fact that it contains a range of essential vitamins and minerals.

It can also help to:

  • Fight inflammation.
  • Improve heart health.
  • Reduce arthritis pain and swelling.
White kidney bean

Mainly composed of carbohydrates and fiber, white kidney beans are also a great source of protein, which is especially helpful if you’re looking to build muscle mass.

An ingredient that isn’t always in fat burners, it does, however, provide a range of interesting benefits, including:

  • Aiding weight loss.
  • Inhibiting starch consumption
  • Promoting colon health.
  • Improving blood sugar control.

Glucomannan is a dietary fiber derived from the root of a konjac plant and is used in a variety of supplements, including many fat burners.

It is of benefit in a variety of ways, including:

  • Aiding weight loss efforts.
  • Improving cholesterol levels.
  • Reducing blood sugar levels.
  • Reducing constipation

For those wanting to look their best, it is also known for promoting healthy skin.


An amino acid, L-Theanine, is a welcome addition to many fat burners and was discovered as a constituent of green tea in 1949.

The acid has been shown to have a range of beneficial effects on the body:

  • Improved mental focus.
  • Improved sleep.
  • Aiding weight loss.
  • Boosting the immune system.

A relatively recent discovery, the ingredient has so far been added to a select number of fat burners.

Its range of benefits include:

  • Aiding weight loss.
  • Increasing bone mass.
  • Increasing testosterone levels.
  • Maintaining muscle mass.

Another spice, Cardamom, is traditionally used to treat digestive issues, although in recent years, it has been used to help people regulate their weight.

Some of its many benefits that you can enjoy include:

  • Increased brain function.
  • Reducing inflammation.
  • Reducing sugar cravings.
  • Regulating cholesterol.
  • Freshening breath (really)

Frequently Asked Questions

Are fat burners dangerous?

Fat burners are a safe type of fitness supplement when taken by people in good health that work out intensely and regularly.

They should not be taken by people who do not work out, do not enjoy healthy diets, and by people that want to take the supplements as a magic solution to weight loss.

Do fat burners work?

Fat burners work by targeting the body’s thermogenic fat cells. These are one of two kinds of fat cells within the body and are used for resisting hypothermia and defending the body against obesity.

These cells have shown to “significantly include whole-body metabolism in humans.” As a result, fat burners work to increase and excite the body’s metabolism through a process called thermogenesis.

What’s the best natural fat burner?

All fat burners within this article contain only natural ingredients. There are, however, products on the market that that do contain added ingredients and chemicals. If you’re looking for the best natural fat burners for 2020, they’re listed in this article.

It’s also important to note the best natural fat burner will be different for every person reading this article, as each individual will have their levels of fitness, diets, and routines.

Choosing the best one for you is what matters the most.

How can I lose my stomach fat?

Unlike muscles, which you can specifically target for growth during exercise, it is impossible to target a certain are of fat within your body without medical operations.

With a good exercise regime supported by a good diet, however, you can work to reduce fat in the body as a whole.

How should I choose the best fat burner for my goal?

As you will have read from this article, there are specific fat burners on the market that target specific needs.

For instance, if you find that you crave food in between meals, search for a fat burner that contains an ingredient to reduce cravings or hunger (such as Hunter Burn).

Think about what you want to achieve from fitness and the supplements you are looking to buy and research which fat burners can help you with your goals.

What foods burn fat quickly?

Put simply; there is a range of natural and healthy foods and ingredients that can help boost your metabolism to help you lose weight.

Some of the more popular include red chili peppers, coffee, eggs, olive oil, and apple cider vinegar.

The Final Word

The world of fat burners is always evolving, growing, and forever getting better. Most of the fat burners above have been reviewed by our dedicated team.

With the right kind of diet and exercise, we know that each one of these burners can provide you with the boost you need to reach your personal fitness goals.

With all the information at hand, we hope we’ve provided you with the best possible resource and knowledge to help you achieve your fitness goals.

If you have any questions about anything mentioned in the above, feel free to leave a comment below.

Disclaimer:  The information on this site has not been evaluated by the FDA. The products on this page are not intended to diagnose, treat, cure or prevent any disease. Results in description and Testimonials may not be typical results and individual results may vary. We may earn commission if you click the links and buy the products featured on this page. Read our disclosure and disclaimers page.