Best Thermogenic Fat Burner 2021

Updated on February 24, 2021

You’ve heard that thermogenic supplements can help you lose weight, but once you started to look for one, you suddenly feel confused by the many options that you need to filter through.

There is no doubt that thermogenic supplements have become popular. Many people are searching for the best thermogenic fat burner.

The goals of a thermogenic supplement are simple:

  • To produce more heat inside your body
  • To burn more calories
  • To speed up your metabolism
  • To reduce your appetite

The combined effect is why you are looking to find the best option that you can buy right now.

If you find the massive selection overwhelming, continue reading, as we explore the best thermogenic fat burner supplements available right now.

How We Made This Thermogenic Fat Burner List?

Making a list that gives you the ability to find the best thermogenic fat burner easily was not easy. There are hundreds of these products out there. Each thermogenic supplement claims to be better than all of the others – with this claim, finding those that really work is hard.

This is why we developed a list where we looked at specific things related to each thermogenic supplement.

We started by considering the claims made by each. We focused on thermogenic supplements, so we looked for claims like:

  • Boosts metabolism
  • Increases fat burning
  • Burns more calories

Then we turned to do some research on each brand. We considered the following information:

  • Mentions of the brand on social media and third-party websites
  • Whether or not the brand has an official website
  • Where the brand manufactures its products
  • Whether artificial ingredients are used in the production of the product
  • Whether the brand mentions any scientific studies that back up claims they make

We also looked at user reviews. Knowing what people think about a specific supplement is one of the best ways to see if it works or not. This gives us a real-life testimony of the actions provided by the thermogenic supplement.

We collected data on user reviews and opinions in a few different ways:

  • We started by looking at reviews and testimonies on the official websites that represent each product
  • We considered whether the supplement is sold on Amazon – if so, we looked for reviews on the Amazon platform.
  • We also looked at any third-party reviews we could find (mentions of the product on Twitter, Instagram, Facebook, and blog posts)

We narrowed down to a much smaller list of thermogenic fat burner supplements.

The next step was to take a look at each product closely. There are a few things we considered to help us decide which products should be filtered out.

  • Ingredients: We considered every single ingredient included in these products. This allowed us to compare the formulas to scientific studies conducted in the past. We were able to see which supplements contain ingredients that may actually work. We filtered out the supplements with too many unproven or ineffective ingredients.
  • Side-Effects: We also had to consider the safety of the user for every supplement. While considering the list of ingredients, we looked at any side-effects that these substances might cause. This allowed us to ensure we did not include any harmful thermogenic supplements on our list.
  • Guarantees: When you buy the best thermogenic fat burner, you ultimately want the best value for your money. This is why we decided to consider guarantees provided by a product as a deciding factor too. Only a few of these products come with a convenient guarantee – often provided as a “trial offer” or “satisfaction guarantee.”

The last step was to run a poll on Reddit. We find that Reddit is quite active with people looking for ways to lose weight – but, at the same time, many experts are on the platform too. This is why we turned to Reddit to get real insight from people who used weight loss and thermogenic supplements in the past.

Our Reddit poll got over 300 responses – allowing us to narrow the list down even further.

Best Thermogenic Fat Burners 2021

The goal of our review post is to help you find the best thermogenic fat burner on the market.

After our extensive research, considering what people think, and even asking people with a weight loss success story to tell what their favorite brand was, we came up with a list of three supplements that are truly the best.

We share our findings below.

Each of these supplements gives you:

  • An effective formula to help produce a thermogenic effect in your body
  • The ability to produce these effects without serious side-effects
  • A cost-effective thermogenic supplement that won’t break the bank

#1. PhenQ

1 PhenQ Best Alternate Image Corrected

We start with PhenQ for a simple reason – this is one of the most unique weight loss supplements on the market. This is a thermogenic supplement, sure. In addition to creating a thermogenesis effect in your body, however, the supplement offers much more.

PhenQ was designed to deliver functions you would usually get from five different weight loss products – in one single supplement.

This means the supplement does so much more than just boosting your inner body temperature. It also helps to ensure your metabolism gets a speed boost. It helps to reduce the production and storage of new fat cells, ensuring you do not continue gaining weight while using PhenQ.

The supplement also helps you experience higher levels of energy. Unfortunately, many people end up quitting due to low energy and fatigue. When your energy levels are high, it means you can continue that workout session. It also means you burn more calories at the end of the day.

Apart from these primary functions, PhenQ also helps to reduce your appetite. This is yet another important function. Eating too much means you are in a caloric surplus. What this essentially means is that losing weight is out of the question.

The supplement also helps to elevate your mood. Many people overlook the important role that a healthy mind plays in weight loss. It keeps you motivated and ensures you do not give up halfway through your journey.


  • 5-in-1 functionality gives you much better value for your money.
  • It causes thermogenesis while also boosting metabolism and curbing your appetite.
  • The supplement has several multi-buy savings to consider.
  • The formula is easy to use and does not pose serious risks to most healthy people.


  • You get the power of five weight loss products in a single supplement.
  • The formula is made in the UK and US, inside facilities approved by the FDA and GMP.
  • The formula does not only focus on the main factors of weight loss – but it also helps to elevate energy and your mood.
  • There is a money-back guarantee that comes with the purchase of PhenQ – this guarantees your satisfaction.
  • Shipping to local areas in the United States and the UK are free.
  • While the formula was developed to be as potent as some pharmaceutical anti-obesity drugs, you do not need a prescription to order or use PhenQ.


  • Not a 100% refund on the amount you paid.
  • Delayed shipping to some international destinations.
  • Some ingredients could interfere with certain pharmaceutical drugs. In these cases, there are interactions that could develop.

Customer Experience

We should always talk about customer experience – and luckily, with the PhenQ supplement, getting a view on what people think is really easy. There are thousands of reviews for the PhenQ supplement. The great news – over 160,000 people, have provided a positive review related to their experience with the product.

Several people have commented on their experience – and these people are happy with the results.

Valerie says: ”I needed to lose weight to be run with my kids in the park, and that was made possible thanks to PhenQ.”

Axelle says: ”PhenQ helped me achieve my goals of losing belly fat and love handles as well as improve my body shape.”

These are only two examples of the many reviews that PhenQ shares on its official website. You can look at our PhenQ review too.

#2. Instant Knockout

1_instant knockout_alternative to clenbuterol

If you are looking for an all-natural thermogenic supplement that also keeps you full during the day, and one that the pros use, then Instant Knockout is the option you want to look at. This supplement was designed for pro boxers. It did really well, which is when the brand decided to release it to the general public too.

Instant Knockout is a potent supplement that uses only a range of natural extracts to help you achieve your goals. This means less worrying about exposing your body to those harsh chemicals found in pharmaceutical drugs. It also means there is no need to worry about a prescription every time you want to refill your bottle of weight loss pills.

The Instant Knockout supplement has two important goals:

  1. To help you achieve better thermogenesis, and
  2. To ensure you feel full faster during a meal and for long after the meal.

These are two important functions that ultimately contribute to better weight loss together.

Apart from the main Instant Knockout supplement, the brand also has an alternative option that was developed specifically for women. This ensures men and women have a unique way of addressing weight loss through a thermogenic product.


  • The supplement was initially developed for professional boxers to help them shed fat faster during training sessions. This means careful consideration has gone into the process of developing the formula behind the supplement.
  • This is a multifunctional supplement that causes your body’s thermogenesis process to be more effective, while also keeping you full during the day.
  • The supplement may help to reduce your appetite. This means you eat less. Eating less and exercising more – this is the combo you want to achieve if you want to lose weight.
  • The supplement is not as expensive as some of the other ones out there – especially when you take a look at thermogenic pills. This makes it more reachable for the average person who is shopping for the best thermogenic fat burner on a limited budget.


  • Highly researched formula to ensure you get maximum benefits.
  • The ingredients have gone through extensive scientific research and were proven to be safe too.
  • There is a 90-day money-back guarantee that comes with the purchase of the product. This gives you enough time to really put the formula to the test.
  • The supplement is produced in a facility that follows strict manufacturing guidelines set out by the GMP.


  • Shipping may be delayed to some destinations.
  • There are some countries where customs duties may be charged when the package is imported.

Customer Experience

Finding reviews for Instant Knockout is also no problem at all. This helped us get a more accurate idea about what people really think about the supplement – and if it actually provides the functions, it claims to offer.

When we look at the reviews, we find that people of all ages are benefiting from the formula. In fact, there are even some people over the age of 50 that are enjoying the effects of the Instant Knockout supplement.

Costas Kyrogousious says: I recommend Instant Knockout with all my heart to everyone serious about losing body fat.”

Dan Mack says: Well worth the money, could not recommend more.”

More reviews and testimonies can be found directly on the official website that represents the Instant Knockout supplement. Here’s ours.

#3. Hunter Burn

Hunter burn-01

Hunter Burn is the third option on our list. This is a simple supplement with impressive goals. It focuses on giving you three main benefits:

  • To burn fat faster than ever before
  • To help you feel better about yourself
  • To help you look better than before

The main method of action is to provide a thermogenic formula. The supplement uses scientific research to develop a formula that effectively raises your core body temperature. As this happens, your metabolism starts to work faster – and you burn through calories (and fat) at an accelerated rate.

Another important function that the Hunter Burn supplement offers is the fact that it helps you lose weight, but without causing a reduction in your lean muscle mass. We have found that this is a problem with some supplements. You do not want to lose both fat and muscle mass.

There are other benefits that the supplement offers too:

  • It helps you avoid crashes during the day and keeps your energy levels high.
  • The supplement also helps you keep away from binge eating and unhealthy foods by curbing your appetite.
  • You feel better mentally, too, as the supplement may also help to boost your mood.

We should also note that the manufacturer of Hunter Burn, Hunter Evolve, has been around for some time. The company has gained a reputation for developing highly effective and safer supplements. This means you can trust that this product will not bring you harm, and will help you lose weight.


  • The main purpose is to provide a thermogenic action in your body. This ensures fat is burnt faster, and you get rid of more calories when you exercise.
  • The formula helps to curb your appetite too. A reduced appetite helps you take control over how many calories you eat during the day. It also reduces the risk of those mid-day cravings that you cannot control – often leading to binge eating and, of course, weight gain.
  • The company behind the supplement has ensured that the product is not only effective, but they also looked at the safety profile of the product. This ensures you get a thermogenic supplement that is safer to use, especially when you decide to use the product on a daily basis.


  • A formula that is based on the latest in scientific research. This gives you more confidence that the supplement will work effectively.
  • The website that represents the product offers a full overview of the scientific studies that were considered during the development of the formula. This gives you a way of cross-referencing the claims the supplement makes with the research behind them.
  • There is a 100% risk-free trial offer provided by Hunter Evolve. Once you have bought the supplement, you get a period of 90 days to try it out and see if you want to continue using the product or rather ask for a refund.


  • The product is more expensive than many of the other thermogenic supplements that are available. Thus, you will need a bigger investment if you want to give it a try.
  • The free delivery offer that applies to orders is only available to customers who live in the United States and the United Kingdom.
  • You need to take six of these capsules each day. For many people, this will be seen as an inconvenience. Most alternatives only need you to take one or two capsules as a daily serving.

Customer Experience

It wasn’t hard finding the opinion of people who used Hunter Burn before. This is because the company is completely transparent about what people say about the product. There is a page on the website dedicated to providing an overview of the testimonies related to the product.

Here’s an example of a review published on the official website:

I have been taking Hunter Burn for 2 months, and I’ve already lost 17 pounds. I originally decided to try Hunter Burn because of the reviews online, it hadn’t been on the market for too long, and all I was reading seemed to be very positive. All I do is take two Hunter Burn tablets with my meals, thirty minutes before I eat, and Hunter Burn does the rest!”

As you can see, customers do seem to feel that the supplement works and is worth their money.

Whats Thermogenesis & Is It Safe?

We’ve looked at many fat burner supplements out there – but here’s an important question: Do you know what thermogenesis is, how these supplements work, and whether it is actually safe to use them?

The efficacy and safety of weight loss supplements are factors that you always need to look at before buying one of these products.

The good news is, a researched and carefully formulated thermogenic supplement is sure to be useful – and also safe at the same time.

Thermogenic is a term that refers to a substance that produces heat. The body generates heat when it burns calories. This usually happens when you exercise.

The thermogenesis process helps the body burn more calories in the process. The more heat is generated, the more calories are burnt.

A thermogenic supplement helps to raise the temperature more – particularly when you are active, such as while running or performing a different kind of exercise.

The effect of the thermogenesis process may include:

  • Speeding up your metabolism and increasing the amount of fat you burn during a session of physical exercise.
  • To reduce your appetite and help you decrease the number of calories you eat during a single day.

When looking at safety, you will need to consider the ingredients used in the supplement. Many of these products are based on the latest scientific research. Companies are looking for ways to offer similar effects of drugs used to address obesity but in a safer way.

With this in mind, side-effects should not develop when using a thermogenic supplement that is proven to be a high-quality product.

Also read: Resurge Reviews: Deep sleep to reduce fat!

Thermogenic Beginners Guide

Using a thermogenic supplement is actually quite simple – but there are still a few things you need to take into consideration.

First of all, know the ingredients to look for. Some ingredients work, while others do not produce real results. You do not want to waste your money on a thermogenic supplement with no effective ingredients.

  • Piperine and capsicum are often used as primary thermogenic components. Green tea extract has also shown potential when used to increase body heat during exercise. This may help you experience improved thermogenesis and burn fat faster.
  • Some ingredients, such as chromium picolinate, are sometimes used to help control the levels of sugar in your blood. This is a great way to reduce cravings for sweets during the day. It also helps to reduce the risk of an energy crash just when you need your energy most.
  • Caffeine is sometimes used as a stimulant. This type of stimulant ingredient helps to boost your metabolism – which is one of the main functions of a thermogenic supplement.

There are other ingredients that may work too.

You should know how to use these supplements too. You will usually take one or two doses of the supplement every day.

The supplement should not be used alone. Instead, you need to combine it with an exercise program. Remember that your body heats up to burn calories when you are active. Thus, for thermogenesis to be effectively induced by the supplement, you need to exercise.

A healthy diet will also be a great way of further increasing the benefits you get from a thermogenic supplement.

Thermogenic Fat Burner: FAQs

We take a look at some common questions that people ask about thermogenic supplements below.

How do I know which is the best thermogenic supplement for me?

First of all, consider your own goals. Then, look for a thermogenic fat burner supplement that fits those goals.

If you simply want to lose weight, then a general thermogenic supplement based on scientific research may be good.

If you find that you often struggle to keep your appetite in check, then look for a thermogenic supplement with added ingredients to help reduce cravings. Some fibers are often used to help reduce your appetite. This helps you eat less – as you will full faster and for longer.

If you have low energy levels and a poor mood – and these factors are keeping you away from the gym – then look for a multifunctional thermogenic supplement.

What are the side-effects of thermogenic supplements?

Many people use these supplements without any side-effects.

There are a few people who may experience adverse reactions. This is most often the case if you take the supplement with certain pharmaceutical drugs.

Mild stomach upset sometimes happen when you only start using the supplement for the first time. This should get better in a few days, however.

There is a rare risk of an allergic reaction. In such a case, you are allergic to a specific ingredient in the supplement.

How much should I pay for the best thermogenic fat burner?

Just because you want the best option does not mean you have to pay hundreds each month. Look at your budget – decide how much you can pay. Most supplements with proven results vary in price from around $50 to $80.

In Conclusion: Which Thermogenic supplements are Best for you?

Thermogenic supplements boost the heat inside your body. This means you burn more calories, and you lose weight faster. While many of these supplements exist, not all of them work. If you want the best thermogenic fat burner, consider the three options we introduced. Also, look at the tips we shared to help you understand how to find a thermogenic supplement that will work for you.

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It's important to note that the guidelines and advice offered in these reviews should not serve as substitutes for medical advice. Webminati Media advises consumers to consult their physician before taking any medication or if they have any doubts about a product, prioritizing their health and safety above all else.