Best Fat Burners for Weight Loss UK 2024

Hourglass Fit at a Glance

Well-dosed ingredients, a clever formula, and sold at great value for the customer, Hourglass Fit is a great example of what stim-free fat burners can look like. Its ability to reduce hunger (particularly cravings) and help you to feel vibrant and happy helps it to stand out from the stim-free crowd.

Pros

• Excellent appetite suppression
• Mood-enhancing ingredients
• Stim-free
• Reduces carb cravings
• Excellent value for money

Cons

• Only available from the Hourglass website

Hourglass Fit Ingredients Review

The most effective ingredient in Hourglass Fit is konjac root, with a 3,000mg dosage (it is 90% glucomannan). This is an incredibly effective way to boost satiety and help you to avoid hunger pangs between meals. Konjac root can make dieting a lot easier and more enjoyable. It can also help you to reduce your calorie intake.

Hourglass also makes use of cayenne pepper, which is known to help boost your metabolism. They use Capsimax, which is the industry gold standard for cayenne pepper. 5-HTP is a precursor to serotonin, meaning that taking 5-HTP can raise serotonin levels naturally, helping to raise your mood and better regulate your appetite.

This makes it less likely that you will fail your diet, as you will be more motivated to succeed and less likely to crave carbohydrates or high-fat snacks. Studies on overweight women have found that using 5-HTP can lead to significant increases in fat loss over a period of 4 weeks [8].

Hourglass also contains high dosages of chromium, zinc, and vitamins B2, B6, and B12. These have been carefully selected to help women lose weight, but they are also beneficial for men.

Hourglass Fit Review

Hourglass Fit was primarily designed to help women to burn fat successfully while dieting. But the formula is ideal for both men and women. It is non-stim, so it will appeal to many people who don’t enjoy caffeine, and it focuses more on appetite suppression, mood, and raising energy levels.

If you are looking for a powerful fat burner that will jump-start your metabolism, then look for Instant Knockout Cut. If you are looking for a smart fat burner that focuses more on keeping your spirits and energy levels up while simultaneously lowering your appetite and calorie intake, then Hourglass Fit is a great option.

Hunter Burn at a Glance

Hunter Burn splits its ingredients into three categories: Hunger neutralizer, thermo-burn, and energy unlock. It contains some caffeine in the form of matcha green tea, but this is nowhere near as strong as Instant Knockout Cut, for example.

But that doesn’t mean that Hunter Burn isn’t a great fat burner. It just has different strategies for burning fat. The Hunger neutralizer contains both konjac root, which can increase satiety and white kidney bean extract, which is perfect for reducing carbohydrate absorption.

Combined with the Thermo-Burn formula that combines top-quality cayenne pepper with matcha green tea and you’ve got a powerful fat-burning supplement. The addition of L-theanine and vitamin D is a clever addition which will boost your mood, health, and energy levels.

Pros

• Well-dosed ingredients
• Highly satiating
• Mood-enhancing ingredients
• Powerful fat-burner without strong stimulation
• High dosage of vitamin D

Cons

• Premium price for premium formula
• Only available from the Hunter Evolve website

Hunter Burn Ingredients Review

There are only six ingredients in the Hunter Burn formula, which may seem low compared to some on this list, but it is actually an indication of the faith that Hunter has in their product. Each ingredient is strategically chosen. There are no fillers or underdosed ingredients here.

As mentioned before, there are three parts to the Hunter Burn formula:

• Hunger Neutralizer: Konjac Root (Glucomannan), white kidney bean extract
• Thermo-Burn: Cayenne pepper, matcha green tea
• Energy Unlock: L-theanine, vitamin D

The hunger neutralizer is the most effective part of the formula. The ingredients make it easier to reduce your calorie intake, helping you to diet successfully. Glucomannan has been shown to help reduce food intake by making you feel fuller and more satisfied after a meal [2].

White kidney bean extract is not a common ingredient in fat burners, but it really should be. It is used to help reduce the number of carbohydrates that are absorbed. This means that you could eat 100 grams of carbs, and your body would extract fewer calories from it than normal.

The difference isn’t massive, but over time it can save you hundreds of calories. This means that you can eat slightly larger portions of carbohydrates than you would normally on a diet while still getting fat loss results.

Thermo-Burn relies on cayenne pepper, a rich source of capsaicin, to increase your body temperature and raise your metabolism. Hunter Burn also uses matcha green tea as a source of caffeine and to increase fat oxidation.

L-theanine is great for relaxing you and helping to avoid the side effects of caffeine. It can also raise your mood and increase motivation. Vitamin D deficiency is a known factor in obesity, so Hunter Burn includes a powerful dosage, which can help to increase weight loss over time [3].

Hunter Burn Review

Hunter Burn is an incredibly powerful and effective fat burner that utilises multiple methods for creating a calorie deficit. Thanks to the l-theanine and low-stim formula, you will feel great while taking it, and provided you adjust your lifestyle to match the ingredients, you can expect excellent results. The price per serving is a minor stumbling block for some, but the value for money is incredible.

PhenGold at a Glance

What you first notice when you look at the ingredients list of PhenGold is the focus on mood-enhancing ingredients. DMAE, L-Tyrosine, Rhodiola Rosea, and L-theanine are all known to help banish fatigue, boost mood, and allow you to think clearly. You also have the anti-fatiguing effects of caffeine, and caffeine can also increase cognition and temporarily raise your mood.

Pros

• High in caffeine
• Mood-enhancing ingredients
• Cognitive enhancing benefits
• 100-day money-back guarantee

Cons

• Not particularly good at reducing appetite
• Green coffee is unproven

PhenGold Ingredients Review

There are some really good ingredients found in PhenGold; 500 mg of green tea, 250 mg of l-theanine, 200 mg of cayenne pepper, 225 mg of caffeine, 250 mg Rhodiola Rosea, and vitamins B3, B6, and B12. There are also a few ingredients that aren’t particularly effective; 100 mg green coffee, 350 mg l-tyrosine, and 150 mg DMAE.

It’s not that these less effective ingredients are completely without merit, but they don’t really contribute much to the fat-burning process.

For example, there is some evidence that green coffee extract may help with weight loss [4], possibly by working as a carb-blocker. But there is nothing specific, and it certainly doesn’t “burn fat, boost metabolism, and increase energy”, which is what PhenGold claims.

DMAE may help to prevent cognitive decline, but that does not mean that it is effective at enhancing your mood. In any case, there are more than enough ingredients in PhenGold that can do this effectively.

L-tyrosine is an interesting ingredient, it does not appear to have any effect on weight loss, but it does appear to reduce stress and fatigue. It may also be able to reduce muscle damage after a workout. But that’s about it. L-tyrosine is a decent supplement ingredient for training, but it is not a fat burner.

PhenGold Review

PhenGold does a great job of targeting all aspects of fat burning. The mental side in particular. They have a powerful, stimulatory formula but have also included ingredients that can mitigate this and ensure that you are not affected by jitters, nausea, or high blood pressure.

It’s a really smart formula that perhaps includes a few too many ingredients.

Brutal Force CCUT at a Glance 

The thing that immediately stands out when you look at the ingredient label for Brutal Force CCUT is that the ingredients are unique. Guarana, instead of regular caffeine, bitter orange (Citrus aurantium), garcinia, and Griffonia, alongside vitamin B3.

Pros

• Excellent value for money
• Low-stim formula
• Appetite suppression

Cons

• Could do more for burning fat

Brutal Force CCUT Ingredients Review 

There are five ingredients in the Brutal Force CCUT formula: vitamin B3, bitter orange, Garcinia cambogia, guarana, and Griffonia. Bitter orange has been added as this is similar to ephedrine. It can boost your metabolic rate, increase alertness, and it may also help to suppress appetite.

Garcinia is an interesting ingredient, and there is certainly evidence that it can help to increase weight loss. A 2000 study on overweight women found that taking Garcinia cambogia led to an additional loss of 1.3 kg over 12 weeks compared to the placebo [5].

The vitamin B3 (niacin) addition is clever as it helps to increase your body’s production of leptin [6]. This is good because leptin can increase satiety, helping you to regulate your appetite and reduce your calorie intake.

Guarana, instead of caffeine, is an interesting choice. It is often claimed that guarana has a higher amount of caffeine per gram than coffee beans. However, the actual amount of caffeine in Brutal Force CCUT is not that high.

There is 342 mg of guarana per serving, and it contains 22% caffeine. This works out at 75 mg of caffeine, which is around the same amount as one shot of espresso. Sounds like a lot, but most fat burners contain around 200-300 mg of caffeine.

That being said, guarana does have some benefits. It is slower releasing than regular caffeine and provides a smoother experience. There are many cognitive and mood-enhancing benefits.

The final ingredient is Griffonia, which is a natural shrub that grows in parts of Africa. It is a natural source of 5-HTP, which offers mood enhancement and appetite reduction. This is a clever ingredient to add, but it might have been better to provide an isolated version of 5-HTP, which has more research backing it and appears to be slightly more effective.

Brutal Force CCUT Review 

If you are looking for a fat burner that provides mild stimulation and a powerful appetite-suppressing effect, then Brutal Force CCUT is a great choice. But as a pure fat burner, it leaves a lot to be desired. They are placing most of their hope in bitter orange and guarana, neither of which are particularly effective at increasing fat oxidation.

Sometimes it is better to just use the standard ingredients rather than trying to get too cute with the formula.

Burn Lab Pro at a Glance

Burn Lab Pro contains six ingredients: chromium, calcium, HMB, ForsLean, Capsimax, and Bioperine. These ingredients help to prevent/reduce fatigue, improve mood, reduce hunger cravings, and raise your metabolic rate.

Pros

• Excellent anti-fatiguing formula
• Improves exercise performance
• Good appetite regulation
• Stim free

Cons

• Fat burning isn’t fantastic

Burn Lab Pro Ingredients Review

Burn Lab Pro doesn’t have any of the ingredients you would expect to see in a fat burner, except for Capsimax (capsaicin) and Bioperine. It contains high levels of chromium, calcium, and HMB, as well as ForsLean (Coleus Forskohlii).

Chromium has been added because it is good at reducing your appetite. Studies have shown that it can lead to a reduction in carbohydrate cravings in some people and may help people who struggle with portion sizes [7]. It may also help to improve exercise performance, but more research is required before this claim can be proven.

It isn’t clear what benefit calcium provides. Burn Lab Pro doesn’t mention it at all on its website, except on the label. HMB is well known for its ability to reduce muscle damage, making it easier to recover from your workout while dieting. It has been added to allow you to train harder and build muscle even while remaining in a calorie deficit.

Coleus Forskohlii has been added because Burn Lab Pro claims that it can help you to burn fat and build muscle simultaneously. Sadly, this claim has no evidence supporting it. The biggest (proven) benefit of Coleus Forskohlii is that it can reduce fatigue, very important during a diet, particularly if you are looking to train hard in the gym.

Capsimax is good at increasing thermoregulation, raising your heart rate and increasing your fat-burning potential. This would be a good supplement to take before a workout.

Burn Lab Pro Review

Burn Lab Pro is one of a kind, and it’s a fat burner that you will either love or hate. If you are a frequent gym goer and you want your performances in the gym to be unaffected while you diet, then Burn Lab Pro is a decent product.

If you are looking for something to reduce your appetite or increase your metabolism, then it does not fare well against the likes of Instant Knockout Cut or Hunter Burn. In fact, Hunter Burn is a prime example of what Burn Lab Pro should be doing. There are better stim-free fat burners out there.

Lean Bean at a Glance

The formula for Lean Bean is decent, if not spectacular. You will certainly notice a reduction in appetite thanks to the glucomannan, but the mood-enhancing benefits that can be so helpful are largely absent. There are several ingredients that have no practical use, and this does hold Lean Bean back slightly.

Pros

• Well-dosed glucomannan helps suppress appetite
• B vitamins reduce fatigue
• Turmeric provides numerous health benefits

Cons

• Too many useless ingredients
• No real fat-burning element
• Not specific to women

Lean Bean Ingredients Review

The glucomannan in Lean Bean does all of the heavy lifting. This supplement would not change much if you removed everything else and turned it into a glucomannan supplement. It is well dosed and is an effective way to increase satiety and reduce hunger cravings.

It’s not that the other ingredients are useless; it’s just that they aren’t going to make a huge difference to your diet. B vitamins, chromium, zinc, potassium, choline, Garcinia Cambogia, green coffee bean extract, turmeric, acai berry, and Bioperine.

Some of these ingredients provide unique health benefits. Garcinia Cambogia may help to slightly increase satiety, but its use as a fat burner is unproven. Acai berries may help to improve cognition and heart health, but there is no fat-burning or appetite-suppressing benefits associated with them.

Lean Bean Review

Lean Bean is not a bad supplement. It can help you to regulate your appetite and may also help to prevent certain nutritional deficiencies. But it is not quite as good as Hourglass Fit, and when you consider how similarly priced they are, it’s a simple decision to choose Hourglass instead of Lean Bean. Both supplements can help women (and men) to lose weight, but Hourglass offers more direct help and has better ingredients.

PhenQ at a Glance

PhenQ is a stimulant-containing fat burner, making it very effective in a direct way, but it doesn’t offer the subtlety of Instant Knockout Cut or Hunter Burn. The use of a proprietary blend is a big red flag, though it is possible to find the correct dosages elsewhere on the internet.

Pros

• Good stim ingredients such as caffeine
• Good price per serving
• L-carnitine can help with fatigue and tiredness

Cons

• Proprietary blend, no transparency
• Unproven ingredients such as alpha-lacy
• Underdosed ingredients

PhenQ Ingredients Review

The caffeine content in PhenQ is a little low, but there is enough to elicit a fat-burning response. You also have some clever ingredients, such as l-carnitine, that can help with fatigue and tiredness. But there are also a lot of confusing ingredients. For example, there is 625 mg of calcium in each serving, but nowhere on the PhenQ website is calcium mentioned. Why is it there?

There is also 10 mg of magnesium and 5 mg of silicon dioxide. There are also some underdosed ingredients. With only 8 mg of capsicum PhenQ is going to struggle to raise your metabolism. Of course, these ingredients may differ in dosage to what is written in this review, but that’s PhenQ’s fault for using proprietary blends and hiding dosage information.

PhenQ Review

PhenQ is one of the big hitters, and is very popular. But it has a lot of issues. There is evidence that it can raise your metabolism, and it may also help with appetite suppression. But there are better supplements out there such as Instant Knockout Cut, that use more potent ingredients and can provide faster results.

Trimtone At A Glance

On paper, Trimtone contains a lot of ingredients that can help with fat burning. There is caffeine, green tea extract, and glucomannan alongside useless ingredients such as green coffee bean extract and grains of paradise. The problem is that all of the ingredients are underdosed. You would need two servings to get good results, which means that you are doubling the price per serving.

Pros

• Glucomannan can reduce appetite
• Caffeine and green tea can raise metabolic rate
• Good price

Cons

• You need to double the serving size to get proper dosages
• This makes Trimtone more expensive
• Useless ingredients such as green coffee bean extract and grains of paradise

Trimtone Ingredients Review

There is 120 mg of caffeine in each serving and only 100 mg of glucomannan. Compare this to Hourglass Fit, which contains 30x as much glucomannan, and you can see the issue here. The green tea extract is also 5x smaller than it should be, while caffeine could do with being over 200 mg.

If you double the serving size, you end up with a decent amount of caffeine (240 mg), and the green tea extract is a little more respectable. But you are still way off when it comes to glucomannan.

Trimtone Review

Trimtone is an okay fat burner. The caffeine and green tea can theoretically help to raise your metabolism, while the glucomannan may help to reduce appetite. But the underdosing of all three ingredients is an issue. Doubling the serving size is possible, but this doubles the price per serving and makes Trimtone one of the most expensive fat burners on this list.

PowHer Fat Burner at a Glance

There are ingredients here that are designed to increase your metabolism, reduce your appetite, and increase your energy levels. But they are so comically underdosed that you would need to double or even triple the serving size for them to be effective.

Pros

• Lower price per serving
• Decent appetite suppressant
• No side effects likely

Cons

• All ingredients are underdosed
• Nothing special to justify choosing PowHer over other brands

PowHer Fat Burner Ingredients Review

PowHer contains 1000 mg of glucomannan per serving, which is pretty decent when compared to Trimtone, but quite low when you compare it to Hourglass Fit (which has 3000 mg). It does contain caffeine, but only 33.33mg of caffeine, which is absolutely nothing!

The idea is that you take three servings per day, so that’s 3000 mg of glucomannan (excellent) but still only 100 mg of caffeine which isn’t going to achieve anything. The only other ingredients are choline and chromium. Both are good auxiliary ingredients, but they aren’t supposed to be the star of the show. Which is what they are, by default, in PowHer.

PowHer Fat Burner Review

For PowHer to rise on our list, it would need to be a little more creative with its formula. It needs to stand out somehow. If it is going to contain caffeine, then contain enough to elicit a response. If it is going to focus instead on appetite suppression and mood, then add something that can complement the glucomannan. This is not a bad supplement, it just needs to make some minor adjustments to the formula.