Best Thermogenic Fat Burner Pills This Year
Home » Best Thermogenic Fat Burners in 2023: Your Ultimate Guide

Best Thermogenic Fat Burners in 2024: Your Ultimate Guide

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Whether you’ve got a lot of experience with fat burners or are new to the concept, one of the most popular formulas seen rising to the top in recent years is a ‘thermogenic’ fat burner.

Fat burners are usually plant-based supplements that tackle many aspects of weight loss – from suppressing your appetite, to enhancing your body’s fat-burning potential so you lose more weight quicker.

Thermogenic fat burners aim to take your body’s fat burning to the max through the process of thermogenesis. Before we go into what this process is and how it works in more depth, here’s an overview of what benefits you could experience from a thermogenic fat burner:

  • Increased metabolism – even at rest
  • More natural energy
  • A better breakdown of fat stores
  • Reduced hunger
  • Improved focus, mood and motivation – especially during workouts

It’s important to say that thermogenic fat burners – although they are generally packed with scientifically-backed thermogenic ingredients – they are not miracle pills which will magically melt all your excess fat on their own. Generally, to see the best results, you need to accompany your supplement with a healthy diet and some form of exercise plan too.

But as the market is saturated with fat burners which all claim to enhance thermogenesis to the utmost degree, how can you cut through the noise to find the one for you?

That’s where we come in! We’ve trawled through the thousands of supplements on the market today and chosen the top 4 best thermogenic fat burners based on their clinically-backed ingredients, price, benefits and dose size to make it easier for you to decide.

Instant Knockout

⦁ By Roar Ambition

⦁ All-natural with no fillers
⦁ Endorsed by MMA athletes and trainers
⦁ Powerful thermogenic formula
⦁ May help burn fat as part of a healthy lifestyle
⦁ Bulk-buy deals
⦁ Website:

Burn Lab Pro

⦁ By Opti-Nutra

⦁ 100% Transparent
⦁ Stim-free
⦁ May help maintain lean muscle
⦁ Natural and thoroughly researched
⦁ Contains highly dosed thermogenic ingredients
⦁ Used by #1 Ranked UFC Bantamweight Athlete
⦁ Website:

Hunter Burn

⦁ By Roar Ambition

⦁ Made using high-quality thermogenics
⦁ 3-part top-end weight loss
⦁ Natural, premium formula
⦁ Potent ingredient dosages
⦁ Website:

Hourglass Fit

⦁ By 

⦁ Stim-free
⦁ Works to block hunger and boost mood
⦁ Kickstarts thermogenesis and increases BMR
⦁ Power, fat burning ingredients
⦁ Gentle for daily use
⦁ Website:

What is a thermogenic fat burner?

Before you see the best, it’s probably important for you to understand what a thermogenic fat burner actually is. Usually, these supplements are made up using plant-based ingredients which collaborate together to increase your body’s fat burning potential.

Thermogenesis as a process literally means the heating of your body to stimulate your metabolism, encourage lipolysis – the breakdown of fat stores – and transform fat into usable fuel you can burn off [Source 1]. As your temperature rises, your body works to return it to normal which is why thermogenic fat burners tend to keep your metabolic rate raised for longer, encouraging more calorie burn [Source 2]. This process utilizes more calories than your metabolism would normally need which is how you can see increased fat loss [Source 3].

Why take a Thermogenic Fat Burner

Thermogenic fat burners offer a number of benefits – specially to weight loss. Everybody is built slightly differently and react in different ways to weight loss. Some people have slower metabolisms which makes it difficult to lose weight naturally. Other people find high intensity workouts a challenge.

Whatever the reason, thermogenic fat burners could offer that extra boost to your weight loss potential. If you’ve reached a plateau with your fat loss and feel like progress is slowing, thermogenic fat burners can rejuvenate your body’s natural processes into shedding those stubborn pounds.

Obviously, you’ll need to keep up your workouts and stick to a healthier diet but thermogenic fat burners could offer a chance to take your results to the next level and reach your body goals easier.

Best thermogenic fat burner ingredients

On the market today, there are many ingredients that companies use to inject that thermogenic aspect into their fat burner. However, it’s worth noting, not all inclusions used are side effect free – which is why we’ve listed the safest ones below to look out for below.


As a well-known stimulant, you’ve more than likely heard of caffeine. But what might surprise you is its huge amounts of benefits – especially to weight loss. Not only does it have thermogenic qualities which boosts your metabolism for increased fat burning, it can also reduce your appetite [Source 4] too. Caffeine also triggers hormones like adrenaline which can activate muscles [Source 5] and enhance endurance during workouts [Source 6], as well as stimulate fatty acids to be released from storage so they can be used for energy. By doing this, you’ll be able to burn off stored fat quicker. Other benefits include improved energy, focus [Source 7] and mood [Source 8] which could all contribute towards a better attitude to your weight loss journey.

Green Tea

A popular herbal tea, green tea has a whole host of benefits to help aid weight loss. It contains two compounds which have thermogenic effects – caffeine [Source 9] and epigallocatechin gallate (EGCG) [Source 10]. These two combined could help boost your metabolism significantly, with a 16% increase in fat burning for 24 hours after ingestion [Source 11]. Whilst caffeine helps the release of adrenaline, EGCG complements it by slowing down the breakdown of the hormone so that thermogenesis is prolonged for maximum effects [Source 12].


This fiery component is often found in chili peppers like cayenne and is the element which gives them the spice – and makes it a powerful thermogenic. Capsaicin, like caffeine, increases adrenaline in your body, which kickstarts your metabolism so you can burn more calories [Source 13]. There are many studies which link capsaicin to enhanced satiety, which is essentially the feeling of fullness. Through this delaying of hunger, it is known to reduce calorie intake [Source 14] alongside oxidizing the fat already stored in your body to increase fat reduction overall.

Interested in learning more about fat burning ingredients that work? Check our in-depth article here.

Advantages to Using a Thermogenic Fat Burner

A thermogenic fat burner is essentially targeted towards speeding up your weight loss by helping to convert stored fat into usable energy to burn off. Benefits of taking thermogenic fat burners could include:

  • Quicker fat loss – Through the stimulation of your metabolism for longer each day, your fat stores will be harnessed and transformed into fatty acids which you can burn off. This will help you shed those stubborn pounds easier.
  • Reduced appetite and cravings – Many thermogenic ingredients have been linked to quelling hunger and keeping you feeling fuller for longer. By reducing your appetite you can, in turn, reduce the calories you consume per day which will help speed up the fat loss process.
  • More energy – People with slower metabolisms can often find themselves feeling sluggish and fatigued. Thermogenic ingredients activate your metabolism and encourage it to work faster for longer, which will keep energy levels up throughout the day.
  • Improved athletic performance – Many of the thermogenic ingredients used in thermogenic fat burners can boost focus and attention-span, whilst activating muscles which will enhance your endurance for altogether better workouts.

Our Ranking Criteria

These top 5 best thermogenic fat burners have been extensively reviewed under our strict testing criteria.

We didn’t trial these supplements ourselves, but we compare their ingredients to the current scientific literature to see if they are effective, safe, and correctly dosed – giving us an accurate picture of how a supplement should work for you.

To summarize what we’re looking for:

  • The formula – Looking at not only the ingredients, but the doses too.
  • Price – Ensuring the supplement offers good value for money.
  • Testimonials – What do other customers think? It needs to have positive feedback from users.
  • Trust – We want to be sure these products are completely risk-free and made by a reputable company, since you’ll be taking these daily.
  • The Manufacturer – And the brand authority
  • Where to Buy – We’ll direct you to these product’s websites, so you can learn more about them, and purchase if you’re interested in giving them a try.

The Top 5 Thermogenic Fat Burners

Based on extensive investigation, we have found the following supplements to be a cut above the rest in terms of the best thermogenic fat burners.

Instant Knockout by Roar Ambition

This fat burner has grown hugely in popularity across the globe in recent years – with MMA fighters and sport pros alike choosing it as their go-to supplement to get shredded for their respective professions.

Its 10-part formula uses potent fat burning ingredients to tackle all aspects of weight loss, with strong appetite suppressants, energy boosters and generous servings of thermogenic components.

It is designed to, not only aid with weight loss, but to help preserve muscle too which could be a big plus for both men and women looking to lose stubborn fat but maintain a sculpted physique too.


The formula is 100% transparent, proudly natural and packed with all the top thermogenic ingredients included at clinically-proven doses, targeted towards ridding your body of stubborn fat.

  • Caffeine Anhydrous (300mg)
  • Green Tea Extract (500mg)
  • Cayenne Pepper (100mg)
  • Vitamin B6 (5mg)
  • Vitamin B12 (10mcg)
  • GTF Chromium (100mcg)
  • Green Coffee Extract (100mg)
  • Glucomannan (1800mg)
  • Zinc (10mg)
  • Black Pepper Extract (10mg)


It’s clear to see Instant Knockout has impacted many people’s lives, helping them to upgrade their body and achieve more:

Joe from the UK said that within the first week of using IKO, he noticed that he had much greater energy levels. He was no longer dependant on his pre-workout supplements and was at this point reaching new PBs in his workouts. On top of this, Joe reported that he was less tired throughout the day after his gym sessions, along with maintaining high mental focus to concentrate on his work and revisions in the library. Aafter 8 weeks of using Instant Knockout, Joe reported these results:

  • 14lbs of fat loss
  • Less snacking on junk in between meals
  • Increased motivation with no significant change in his diet or workout intensity than prior to taking IKO

Maz Delacerna from Australia shared an impressive transformation of her own;

Maze Delacerna Instant Knockout Testimonial


  • 100% natural formula
  • Endorsed by pro athletes
  • Top thermogenic fat burning ingredients – at clinically-proven doses
  • Helps preserve muscle
  • Vegan friendly
  • Produced in cGMP and FDA-approved facilities


  • Only available direct
  • The caffeine dose isn’t ideal if you’re very sensitive to it

Does Instant Knockout sound like it’s for you? Find out more from their official website.

Click Here to Buy Now

Burn Lab Pro by Opti-Nutra

Burn Lab Pro offers you a chance to ‘get your strong & powerful on’ with a formula designed to help you lose more fat but gain muscle mass simultaneously. Though the formula is limited to 5 core ingredients, it is highly dosed and offers a range of benefits that’ll help you achieve the physique you’re looking for.

Alongside muscle building aids like forskolin [Source 15] and HMB which have both been proven to promote muscle growth and protect against muscle damage [Source 16], there are also powerful thermogenics which make up the formula to help your body reach maximum levels of calorie burn – even at rest. You could also get strong appetite suppression from chromium [Source 17] and cayenne [Source 18] too.

The generous doses will help bring together better athletic performance, higher fat burning potential and a stronger control on your calorie intake.


Burn Lab Pro does have a small formula however the dosages mean you could see the full effects of each component better, with more targeted results.

  • Cayenne Pepper Extract (75mg)
  • Coleus Forskohlii (as Forslean) (375mg)
  • HMB (1,500mg)
  • NutriGenesis GTF Chromium (90mcg)
  • BioPerine Black Pepper Extract (3.75mg)


Even though it’s a fresh face on the market, Burn Lab Pro already boasts some of the most impressive reviews out of any fat burner. Not just from regular people from everyday life, but also from Pro Athletes.

At the time of writing this, the no.1 bantamweight UFC champion Aljamain “Funk Master” Sterling is currently using Burn Lab Pro to help him shred down for his fight to defend his world champion title.

Aljamain Burn Lab Pro Testimonial


  • Contains no stimulants
  • Has generous doses of appetite-suppressing components
  • Emphasis on preserving muscle and burning fat
  • Some thermogenic ingredients like cayenne
  • Completely transparent ingredients label
  • All-natural and scientifically backed formula
  • Vegan friendly
  • Endorsed by the #1-ranked UFC athlete


  • Slightly expensive
  • No stimulants which could be a downside if you prefer a ‘kick’

Want to know more? Burn Lab Pro is available from the official website:

Click Here to Buy Now

Hunter Burn by Roar Ambition

If you’ve got room to stretch your budget, Hunter Burn is an ultra-premium fat burning product which sits at the top-end of the market.

Through the large servings of the highly-dosed formula, Hunter Burn offers the quality and quantity you’d expect for the price – with extremely effective results to back it up.

Hunter Burn tackles all aspects of weight loss through a 3-section formula: the Hunger Neutralizer – with strong appetite suppressants to keep hunger controlled, Energy Unlock which helps you stay energized throughout the day and the Thermo Burn segment that uses powerful thermogenics like matcha green tea and cayenne to kickstart your metabolism and maximize calorie burn around the clock.


The combination of high-grade ingredients will provide you with powerful fat burning potential and help you keep high levels of performance whilst steering clear of unhealthy food choices too.

  • Matcha Green Tea (200mg)
  • Cayenne Pepper (125mg)
  • White kidney bean (500mg)
  • Glucomannan (3000mg)
  • L-Theanine (200mg)
  • Vitamin D3 (3000IU)


Despite the price-tag, Hunter Burn has cultivated a strong fan base of loyal customers who have seen real results in their ability to burn fat:

“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!”

Xoan Hunter Burn Testimonial

“I’ve tried the Hunter Burn supplement for the first time recently, and for a total of three months (I’ve bought three bottles) alongside with a good workout program. I was looking to lose some body fat without compromising my gains of muscle mass. I can already see a big difference in my body. I am more shredded than ever!”


  • No proprietary blends or synthetic ingredients
  • Completely natural, premium blend
  • Strong thermogenic ingredients at high doses
  • Higher serving sizes
  • Manufactured in cGMP- and FDA-approved facilities


  • More expensive than most fat burners – but premium product
  • You can only buy it direct

Sound like the one? Get Hunter Burn direct for the official website:

Click Here to Buy Now

Hourglass Fit by Roar Ambition

Our 4th and final product on the list of best thermogenic fat burners has to be Hourglass Fit. As a female-focused weight loss supplement, Hourglass Fit harnesses nature to target all aspects of weight loss – minus stimulants. Although it is made for women, it could also prove an effective fat loss supp for men who are looking to reduce their stimulant intake or are generally sensitive to caffeine.

Its innovative formula brings together powerful appetite suppression, mood elevators, energy boosters and strong thermogenic components which will give you full support on your fat loss journey.

Without the inclusion of caffeine, they have made up for the thermogenic elements with cayenne pepper at an impressive dose, as well as utilizing B vitamins and zinc to give your metabolism full support and keep it functioning to the best of its ability.


Hourglass Fit’s formula tackles weight loss from all angles – with particular focus on supporting better appetite control, optimizing your body’s functioning and maximizing your fat burning potential.

  • Glucomannan (Konjac Root) (3,000mg)
  • Chromium (125µg)
  • 5-HTP (150mg)
  • Cayenne Pepper Extract (100mg)
  • Vitamin B6 (1.7mg)
  • Vitamin B12 (2.4µg)
  • Vitamin B2 (1.1mg)
  • Zinc (8mg)
  • Black Pepper Extract (5mg)


Hourglass Fit has proven a big hit with many women across the globe who were struggling to achieve their perfect figure:

Michelle Hourglass Fit Testimonial

Michelle from the UK had 12 weeks until her wedding and she wanted to feel confident on her dress on the big day. Naturally, she hit the gym and started eating cleaner – but she also wanted a little helping hand. The natural formula of Hourglass Fit appealed to her, especially as she didn’t have time for meal replacement shakes or complicated routines. Over those 12 weeks, Michelle’s results were nothing short of impressive:

Shifted the pounds: weighing “2lbs less than I did when I first met my husband!”

  • Reduced cravings and hunger
  • Clean energy without crashes or jitters
  • Confidence increased

Michelle says that even now that her goal is reached, she still continues to use Hourglass Fit as the part of her daily routine to stay fit.

Vicki from the UK said: “I’d tried other fat burners that were full of green coffee beans and other highly caffeinated substances. I found my sleep was interrupted and my stomach was upset. I was literally shaking after taking them. So, Hourglass Fit was a revelation! They were so gentle I thought they couldn’t work. But my bathroom scales prove they do!

I began taking Hourglass Fit alongside my regular gym routine. Within two weeks I was noticing a difference in how toned I was looking. It definitely jumpstarted my metabolism, as I didn’t massively change my lifestyle, yet saw the results I was looking for – I’ve lost 15lbs already! And because it’s 100% natural, it means I can take it worry free.”


  • 100% natural and transparent formula
  • Could promote better metabolic rate and increase calorie burn
  • Potent appetite suppressants
  • cGMP manufactured in USA and UK
  • Designed with training and exercise in mind
  • Vegan friendly


  • Only available direct from the manufacturer
  • No stimulants – could be downside if you prefer a ‘kick’

Sound interesting? Find out more about this appetite-suppressing supplement on the official Hourglass Fit website:

Click Here to Buy Now


If you’ve reached a plateau in your weight loss – despite practicing a healthy diet and regular exercise regime – you may need an extra boost to kickstart that fat burning again.

Thermogenic fat burners target stored fat and help your body burn it off so you can get rid of stubborn fat you’ve been struggling to fight off. They are not a magical pill but they can give you an extra push in some cases.

These 4 fat burners we’ve listed work to, not only boost your body’s fat burning potential through potent thermogenic ingredients, but they will help improve energy, focus and drive to achieve more. You can also get to grips with hunger and cravings too – which could be a real game-changer when it comes to getting rid of those last few pounds.

So, whether you’re just starting out on your weight loss journey or have reached a wall in terms of progress, try a thermogenic fat burner to revitalize your whole experience and help you achieve the results you want to, quicker.

This article contains affiliate links. Learn more here.

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