The Top 3 Best Thermogenic Fat Burners

Thermogenic fat burners are a specialist type of fat burner which increase the amount of heat your body produces.

This increase in heat results in your body burning more calories throughout the day, even at rest – helping you to achieve steady, consistent weight loss.

Without a doubt, thermogenic fat burners can have a massive impact on your fat levels when taken consistently, even without other changes.

Top 3 Best Thermogenic Fat Burners

However, a word of caution. Beware of brands which claim to be thermogenic, when in fact they’re simply basic fat burners in a badly labelled bottle!

To help you be sure you’re buying the real deal, we’ve put together our list of the top 3 best thermogenic fat burners available on the market today.

When it comes to thermogenic fat burners, all brands are not created equal. While some brands may claim to be thermogenic, unless you’ve done your research, you should always take any claims manufacturers make with a pinch of salt.

Far too often, we spot products popping up which have had the wording ‘thermogenic fat burners’ added to the label, but in reality, the product itself contains little or no ingredients with any thermogenic properties!

It’s not even the case that the seller is necessarily looking to mislead the buyer. The truth is, almost anyone can contact a supplement manufacturer and ask for a white label product with their own brand name on it.

This is a big problem for anyone looking for a product which actually works.

Not all sellers know what should be in a thermogenic fat burner. And even those who do don’t always include enough of the active ingredient for it to be effective.

It’s crazy but true – you could be buying ‘thermogenic’ fat burners which aren’t actually thermogenic at all!

When it comes to thermogenic fat burners, it pays to do your research – and that’s exactly what we’ve done so you don’t have to.

Rest assured, the 3 best genuine thermogenic fat burners on the market can be found right here. So step away from Google, and check out the brands below!

First Pick - Instant Knockout

It’s not the first time Instant Knockout has featured in our reviews, and for good reason. It’s a quality brand we have real faith in and it offers real results.

Its potent formula features no fewer than 5 thermogenic ingredients – a far cry from the unknown pills you’ll find dotted around the internet.

So, what’s in the box?.

Found in black pepper, piperine has been shown to effectively increase basal body temperature and in one study, even reversed insulin resistance in rats.

For history buffs, you may already know that Doctors have been prescribing black pepper to people to relieve stomach ailments since medieval times.

More recently however, scientists have discovered the beneficial effect piperine has on thermogenesis.

So many people are deficient in this essential nutrient, but not many people realise it. It’s actually probably the reason so many people struggle to lose weight.

The active ingredient in this one is a protein known as chromodulin. Chromodulin ensures your body processes fat and sugars more effectively.

One thing you should know about chromodulin is that it can be lost by the body through urine when a high-sugar diet is eaten. When you consider this, it’s easy how to see how deficiencies can occur, and how the more that happens, the more you will gain weight.

This is why Instant Knockout makes this ingredient a priority in its formula. Amazingly, it’s the only one which does!



Without an adequate vitamin intake, reactions which affect the way in which your body metabolises proteins, carbs and lipids just won’t happen properly.

One absolutely vital ingredient for this to take place is vitamin B6. Studies have shown that even those who eat a high-fat diet experienced a decrease in the concentration of lipids when taking vitamin B6 supplements.

For this reason, vitamin B6 is essential for making thermogenesis happen.

When it comes to thermogenesis, capsaicin, the active ingredient found in cayenne pepper is one of the most potent natural supplements known to man.

Not only does it induce thermogenesis, it also kills your appetite almost instantly. No wonder it’s sometimes referred to as ‘the magic bullet for appetite control’.

This well-known ingredient works by stimulating the release of norepinephrine, a natural chemical within the body which acts as a neurotransmitter.

When this activates the sympathetic nervous system, thermogenesis occurs.

Instant Knockout features some killer thermogenic ingredients, and the dosages included are the highest we’ve found.

Without a doubt, if you want an extreme but natural thermogenic fat burner, Instant Knockout is king.

Second Pick - Transparent Labs Physiqueseries Fat Burner

Transparent Labs Physiqueseries Fat Burner is another thermogenic fat burner which is well known as an established brand by the masses.

This product contains an incredible 5 thermogenesis-inducing ingredients which aim to boost your metabolism.

But it doesn’t stop there. Through its other active ingredients, it also promises to target 3 other key areas which are important to losing excess fat – appetite control, fat storage and energy levels.

But today, as our main concern is how the product encourages thermogenesis, let’s take a look at what exactly the relevant key ingredients are:

Forskolin has been scientifically proven to both increase metabolic activity and lean body mass.

Of course, carrying more muscle also increases metabolism, so this particular ingredient offers two great benefits.

We mentioned above how green tea extract induces thermogenesis in Instant Knockout, so it’s good to see it’s also included in this product.

You’ll probably notice that caffeine appears in the ingredients list of 2 out of the 3 thermogenic fat burners listed here, and there’s a good reason for that.

Countless studies have successfully proven that caffeine consistently raises the metabolism and results in increased fat burn in overweight subjects.

It’s certainly a powerful thermogenic ingredient not to be missed!

Whilst salicin by itself doesn’t offer any thermogenic properties, when combined with green tea, it actually increases the thermogenic effect of that particular ingredient.

It actually prevents the breakdown of norepinephrine (the natural chemical released when taking green tea extract), meaning this powerful chemical hangs around in the bloodstream for much longer.

The result is a metabolism which runs at a faster rate throughout the day and night, rather than only just after taking the supplement.

Anybody who’s done a little research will know the immense impact cayenne pepper extract has on the metabolism.

It’s all thanks to that magic ingredient, capsaicin, which has baffled scientists for so long with its unique ability to flick on the fat-burning ‘switch’ with such apparent ease.

Transparent Labs Physiqueseries Fat Burner contains some pretty potent thermogenic ingredients.

The dosages are quite impressive too. For us, this would definitely be next on our list if Instant Knockout wasn’t an option..

Third Pick - PhenQ

PhenQ may only feature 3 thermogenic ingredients, but it still definitely deserves a place on our list.

The reason being that these 3 ingredients are extremely potent, but as some people may be sensitive to the high dosages included in the previous 2 products, PhenQ can offer a gentler alternative.

So, for the final time, what’s in the box?

Nobody can deny that caffeine’s certainly an excellent metabolism booster. But it’s also a stimulant which can affect the heart rate, cause insomnia and possibly even make some people hyperactive.

Not everybody is affected by it, but for those who are, the caffeine dosage in PhenQ is much less at 142mg per serving, in comparison to 240mg in the Transparent Labs Fat Burner and 300mg in Instant Knockout.

For this reason, if you find you’re sensitive to caffeine in any way, you can simply opt for PhenQ to lessen these effects whilst still benefitting from the thermogenic fat-burning properties of caffeine.

In a similar way, capsaicin can also have a negative effect on a very small number of people.

Despite being a natural and safe ingredient, a few people do experience stomach irritation when taking high doses of capsaicin.

With PhenQ, you’ll have a much lower dosage of this particular ingredient, and far less to worry about on this front.

PhenQ contains 8mg of capsicum extract per serving, in comparison to Transparent Labs Fat Burner and Instant Knockout, which both contain 100mg of the same ingredient.

In addition to containing a lower dose of the 2 potent thermogenic ingredients above, PhenQ also contains one new ingredient not included by the other products – a-Lacys Reset®.

It’s a branded ingredient which increases oxidisation and reduces free radicals which tend to increase when the body is placed under stress – for example with increased exercise.

Its inclusion in PhenQ is important in helping the user to recover from exercise more quickly and repair muscle tissue faster.

Obviously, the fitter you feel, the more you’re going to move and the more calories you’re going to burn.

Not only that, you’ll be laying down more lean muscle tissue too, and that can only be a good thing for your metabolism.

PhenQ’s great if you want a thermogenic fat burner without the high dosages available in Instant Knockout or the Transparent Labs Fat Burner.

We’d certainly recommend it over any other fat burner you could buy which doesn’t contain thermogenic ingredients.

Thermogenic Fat burner Benefits

Anyone who’s tried and struggled to lose weight with standard fat burners will know just how slow and tedious the process can be.

In fact, it can be so tedious that you simply give up before you reach your goal.

The benefits you’ll gain when you begin taking a genuine thermogenic fat burner are vast.

Thermogenic Fat Burner Benefits

Not only will you lose fat faster, you’ll feel more motivated too. Plus, many of the ingredients in these thermogenic fat burners (particularly caffeine) actually work to improve your energy levels 10-fold, meaning you’ll be itching to get down to the gym and workout every day.

After all, there’s nothing worse for weight loss than slumping in a chair waiting for it to happen.

In addition to this, ingredients such as capsaicin actually decrease your appetite and leave you feeling much less inclined to overeat refined carbs and other heavily processed foods.

The clear benefit of this is it’ll be much easier to maintain a calorie deficit. For men, it’s advised to combine these products with a testosterone booster like Testofuel.

The Final Verdict

When it comes to thermogenic fat burners, for us, there’s one real clear winner – Instant Knockout.

There are so many reasons this supplement deserves pride of place at the top of our list, but for us, the fact that the all-important and so often ignored GTF Chromium is included is key.

For many people, this is the vital missing ingredient in their weight loss plan. With a deficiency, your body will never process fats and sugars effectively, and you could well be stuck in a groundhog-day-scenario of struggling again and again to maintain a healthy weight.

Add to this the fact that Instant Knockout contains the highest dosage of caffeine compared to any of the other supplements and you’ll see just why it’s so effective.

And trust me, if you can tolerate caffeine, it’s one ingredient you really don’t want to skimp on in a good quality thermogenic fat burner.

Instant knockout’s other thermogenic ingredients are also included in abundance. There’s certainly no scrimping and scraping when it comes to the quantities they’ve included here.

And for these reasons, Instant Knockout wins our vote every time, hands down. Have you tried it yet?

Top 3 Best Thermogenic Fat Burners
  • Instant Knockout - 9.6/10
  • Transparent Labs PhysiqueSeries Fat Burner - 9.1/10
  • PhenQ - 8.9/10

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