Fat burners are the most popular weight loss supplements for boosting metabolism and melting off the pounds. Here’s our latest roundup of the best thermogenic fat burners on the market today.
Burning fat off is hard. Keeping the fat off for good can be even harder.
But both of these tasks are a whole lot easier when you have the right tools.
A thermogenic fat burner is one of the best types of weight loss supplements to get the job done.
Thermogenic diet pills can work wonders by accelerating your body’s natural ability to burn fat and help keep it off for the long haul.
In this article, we’re going to reveal the top 5 thermogenic supplements that will give you a clear advantage for achieving your fat loss goals.
Top 5 Thermogenic Fat Burners For 2024
Here is a quick glance at the top five fat burners that we reviewed and ranked for 2023. You can find additional information and product highlights below.
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- Phentramin-D – Best thermogenic fat burner overall (Editor’s Choice)
- Instant Knockout – Best thermogenic for men
- Hourglass Fit – Best thermogenic for women
- PhenQ – Best all-natural fat burner
- Capsiplex – Best budget-priced fat burner
Now we’ll take a closer look at each of these supplements and see why they are the best in this class.
#1. Phentramin-D – Best Thermogenic Fat Burner Overall (Editor’s Choice)
Phentramin-D tablets are hands-down the best thermogenic fat burner on the market today. It continuously tops our lists of fat loss products for many reasons, including its advanced thermogenic formula that accelerates metabolism, suppresses appetite, and provides long-lasting energy.
How It Works
Phentramin-D works by accelerating fat-burning processes in the body while at the same time suppressing appetite and providing sustained energy levels. This unique formula is designed to work by triggering thermogenesis, which increases your body’s core temperature and promotes fat loss.
In addition, Phentramin-D also contains ingredients to suppress appetite, increase mental focus, and provide long-lasting energy for superior fat loss. Since it covers all the bases when it comes to fat burning, Phentramin-D is our top pick overall other diet supplements on the market today.
Product Highlights
- Premium Appetite Suppression – You will lose fat a lot faster when you control your cravings for sweets and other junk food. Fewer cravings also mean less stress, irritability, and mood swings.
- Long-Lasting Energy – Phentramin-D contains pharmaceutical-grade ingredients that will keep you energized for hours on end. This means no more mid-day crashes or feeling tired after just a few minutes at the gym.
- Focus & Alertness – You will feel less distracted and fatigued throughout the day, increasing productivity and performance to get more done.
- Boosted Metabolism – This fat burner can give your metabolism a big boost, which leads to greater weight loss as your body burns fat at faster rates.
- Reduced Fat Storage – Phentramin-D can reduce fat storage at the cellular level, ultimately leading to fat loss over time. As if this weren’t enough, the ingredients may also prevent fat storage (lipogenesis).
- Increased Energy Levels – Since Phentramin-D can give your metabolism a long-lasting jolt, this fat loss supplement can increase your energy levels to burn even more calories every workout.
- Improved Mood – The ingredients in Phentramin-D can give you a quick mood boost that will increase your overall motivation and help keep you on track.
- 100% Synthetic Ingredients – Phentramin-D fat burner contains a 100% fully synthetic blend of fat-burning ingredients that are lab-tested and clinically advanced.
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2. Instant Knockout Cut – Best For Men
Instant Knockout Cut is a thermogenic fat-burning and energy supplement so strong it’s used by professional athletes for competition weight cuts. It provides both mental and physical benefits and is an affordable, easy-to-use option for anyone looking to lose weight.
How It Works
Instant Knockout works to help you burn more fat in three ways. First, it boosts your metabolism with a thermogenic effect to help keep burning fat throughout the day.
Next, it suppresses appetite and controls cravings to help you eat less, keeping you in a calorie deficit for guaranteed weight loss. Finally, it provides immediate and lasting energy so you can push harder in the gym or on the field.
Instant Knockout also contains ingredients like Green Tea Extract and Cayenne Pepper to increase thermogenesis, but unlike other fat burners on the market, it also contains L-Theanine. L-Theanine is an amino acid that works synergistically with caffeine and other stimulants in the product to give you a smooth boost in energy without any jitters or crashes at the end.
Product Highlights
- All-Natural Ingredients – Instant Knockout contains only 100 percent all-natural ingredients that are scientifically proven to boost fat loss. There are never any fillers or binders and there’s no need to cycle off the product when using it.
- Vegan Friendly – Instant Knockout is vegan-friendly and contains no animal products, making it safe for anyone to take regardless of their dietary preferences or lifestyle choices. The supplement has also been certified by Informed Sport as a fully tested supplement so you can feel comfortable knowing that Instant Knockout is free from banned substances.
- Thermogenic Boost – Instant Knockout fat burner gives you a thermogenic boost to keep your body burning fat without any negative impact. It has no stimulants, so there’s no crash at the end.
- Appetite Control – One of the biggest benefits of Instant Knockout fat burner is its ability to suppress appetite and control cravings. It will help you eat less and control your portions without feeling hungry or deprived so you can get the fat-burning benefits of a calorie deficit throughout the day.
- High Energy – The final benefit of the Instant Knockout fat burner is the energy it provides. It gives you a physical and mental boost without making you jittery or causing any crashes at the end so you can stay productive throughout the day. Plus, you’ll have all-day fat-burning energy that keeps working through your workouts so you can get the greatest fat loss benefits from your exercise routine.
3. Hourglass Fit – Best For Women
Hourglass Fit is a round-the-clock fat-burning and energy-boosting thermogenic supplement, designed specifically for women. It doesn’t just work to help you burn fat faster and lose weight; it also helps you beat cravings and have more energy while doing it.
How It Works
Hourglass Fit works by boosting fat loss through elevated metabolism, fat oxidation, thermogenesis, and increased energy levels. It also helps to suppress appetite so you can eat healthier while achieving a lean and toned body.
In addition, it’s also designed to give you a boost of brain-boosting and mood-enhancing neurotransmitters that can keep you motivated throughout the day. So if you are a woman who wants to get back into shape in as little time as possible, this fat burner is for you.
Product Highlights
- All-Natural Ingredients – Hourglass Fit fat burner contains only 100% natural ingredients that are carefully sourced from around the world to meet Roar Ambition’s highest standards. Natural ingredients mean safer weight loss while still being effective.
- Metabolic Boost – This fat burner gives your metabolism a major boost, which helps you lose weight faster and keep it off. Plus, since fat burners can increase thermogenesis so much, Hourglass Fit fat burner also increases calorie expenditure, allowing you to ultimately eat more food (lean protein!) while still losing weight.
- Appetite Suppression – The ingredients in fat burners can help reduce your cravings for poor food choices, making it easier to stick to healthy foods like vegetables and lean proteins. This leads to weight loss over time as you consume fewer calories than you expend each day.
- Clean Energy Boost – Hourglass Fit gives you a boost of long-lasting, clean-burning energy without the use of stimulants such as caffeine, which can cause unpleasant jitters. This boost in energy gives you an extra edge in the gym during your workout, increasing fat oxidation and burning fat for fuel.
- Long-Lasting Fat Loss – The ingredients in Hourglass Fit are designed to help reduce fat storage at the cellular level round-the-clock to prevent fat gain. You will find that fat loss is much easier when weight loss is targeted both day and night; it’s constantly working from all angles.
4. PhenQ – Best All-Natural Thermogenic Fat Burner
PhenQ is a hardcore thermogenic fat burner that uses a powerful fat-burning blend of ingredients to help you shed the fat without losing your hard-earned muscle. It has been designed to deliver extreme fat-burning and accelerated weight loss so you can get the results you want fast.
How It Works
PrimeShred works to help you get shredded in three ways. First, it accelerates fat loss by increasing the body’s fat-burning potential through the natural process of thermogenesis.
Next, it triggers fat-burning hormones to break down fat stores and support fat release from fat cells so you can burn fat more quickly. Finally, PrimeShred provides extreme energy and focus so you can push harder in your workouts as part of a fat-burning fat-loss plan.
PrimeShred also contains a powerful mood-boosting complex to help you stay positive and motivated as well as keep you on track, even when fat loss gets tough.
Product Highlights
- Extreme Energy & Focus – PrimeShred fat burner provides extreme energy and focus, keeping you motivated in the gym as part of a fat loss plan. It also helps you power through tough tasks so you stay productive throughout the day when fat loss puts your schedule into overdrive.
- All-Natural Vegan Formula – PrimeShred fat burner only contains 100 percent all-natural vegan-friendly formula with ingredients that have been scientifically proven to increase fat loss. There are never any fillers or binders and there are no proprietary formulas, so you know exactly how much of each ingredient you are getting.
- Appetite Control – One of the biggest benefits of PrimeShred is its ability to suppress appetite and control cravings. It will help you eat less and control your portions without feeling hungry or deprived so you can get the fat-burning benefits of a calorie deficit throughout the day.
- Thermogenic Potentiating – PrimeShred works to amplify fat loss by combining ingredients in an effective thermogenic complex. It uses potent fat-burning compounds like Green Tea Extract, Green Coffee, Cayenne Pepper and L-Tyrosine to boost fat-burning potential without harmful side effects.
- Hardcore Energy – PrimeShred fat burner provides hardcore energy so you can perform at your peak every single day of the week. It has no harmful stimulants, so there’s no crash at the end or jitters that ruin your focus and productivity.
5. Capsiplex – Best Budget Priced Fat Burner
Capsiplex is the best budget-priced thermogenic fat burner. But don’t let the low price tag fool you; this supplement contains one of the most powerful thermogenic agents, a patented fat-burning blend called Capsimax Plus. Capsimax Plus is made from a potent chili pepper extract that has been shown to boost metabolism and promote accelerated weight loss.
How It Works
The Capsimax Plus formula in Capsiplex works by increasing your body temperature, which helps to naturally boost your metabolism and burn more calories. The extracted capsaicin in capsicum also helps to suppress your appetite, so you eat less and lose even more weight.
Product Highlights
- Natural Ingredients – Capsiplex contains a blend of all-natural ingredients that are effective for weight loss.
- Boosts Metabolism – Capsiplex provides the extra support you need to boost your metabolism to burn even more calories during your workouts.
- Suppresses Appetite – The combination of ingredients can help to suppress your appetite, helping you to take control of your food cravings.
- Safe and Effective – Capsiplex contains no harmful or experimental ingredients and is a safe and effective way to help you lose weight.
How To Pick A Thermogenic Fat Burner
Choosing the right weight loss supplement for your specific needs can be difficult; many people are simply looking for a product that will lead to easy weight loss without putting much effort into it.
But it’s important to pick the right product because it can help you achieve your weight loss goals without compromising your health in the process.
The best thermogenic fat burners are designed to be easy to use, safe, effective, and affordable enough to fit into your monthly budget.
Here is the ultimate guide to thermogenic supplements to help you come out on top and make the best buying decision.
What Are Thermogenic Fat Burners?
Thermogenics are compounds that raise body temperature, making your metabolism work harder and encouraging your body to burn more calories.
Usually taken in pill form, they’re typically made from a blend of plant-based or full-synthetic ingredients – often including caffeine and synephrine.
As your metabolism picks up pace, your body creates more heat and burns energy at an accelerated rate.
Additionally, thermogenics constrict blood flow to fat cells so that calories stored in them are released as body heat.
How Do Thermogenic Fat Burners Work?
A thermogenic fat burner’s main purpose is to raise body temperature to create an environment within the body that encourages weight loss.
A good thermogenic should be able to increase your metabolism beyond what it would normally be, especially when taken at higher doses.
This increased metabolism means that the number of calories you burn throughout the day increases, encouraging weight loss.
There are several ways that thermogenic fat burners encourage weight loss; they either raise your body temperature by increasing your metabolism or suppress appetite, making you less likely to snack between meals.
Some thermogenic fat burners may also speed up the conversion of food into energy so that more calories are burned before being stored in fat cells.
What To Look For In A Fat Burner
A good thermogenic fat burner should be able to raise your body temperature and increase your metabolism. So when searching for the best thermogenic, there are a few factors that you should take into consideration before making a purchase:
1. Quality Ingredients
Thermogenics may contain 100% synthetic ingredients or a blend of natural ingredients plus naturally occurring amino acids. The most common thermogenic ingredients are Caffeine Anhydrous, Capsaicin, and Synephrine HCL.
A good thermogenic fat burner will include all of these ingredients to ensure that their weight loss supplement is as effective as possible. Good ingredient ratios differ between thermogenics, but look for a base of around 150-200mg of Caffeine Anhydrous per daily dose.
Quality fat burners will also include around 20-30mg of Synephrine HCL and Capsaicin combined. Pills that contain several ingredients can be quite large, so make sure to read the product’s label and compare its size to other weight loss pills before buying.
2. Fast Results
Since thermogenic fat burners work by stimulating your body’s metabolism, you can expect to see weight loss within the first few weeks of taking it, especially if combined with a healthy diet and exercise. The best fat burners will be able to shed pounds at an impressive rate; consulting customer reviews is a great way to determine the efficiency of a thermogenic before buying.
3. Long-Term Weight Loss
A good thermogenic fat burner will be able to transform your body when combined with diet and exercise. While there are a number of weight loss products out there, a thermogenic should promote weight loss and reduce the likelihood of regaining pounds in the future.
4. Appetite Suppression
Thermogenic fat burners may also contain ingredients that aid other areas of weight management as well. Look for products that promote appetite suppression and help control cravings. Appetite suppression makes calorie reduction a lot more manageable, helping you to lose weight in a calorie-controlled and healthy manner.
Unlike other weight loss products that may even make you feel hungry, a quality thermogenic is more likely to help you manage your hunger, minimizing the risk of overeating.
5. No Exercise Required
Although it is highly recommended to combine a thermogenic supplement with a fat-loss diet and exercise program for the best results, they should not be required. A good supplement should be effective enough to keep your metabolism high even when you are going about your regular daily activities.
When To Take A Thermogenic Fat Burner
As a general guideline, you can expect to take a dose at critical times when they will be most effective such as:
- About an hour before your biggest meal of the day
- Before your weight training or cardio session
- First thing in the morning on an empty stomach
The optimal time to take a thermogenic fat burner is going to be either in the morning or before your largest meal of the day.
Taking your weight loss pill before breakfast will help you to increase your metabolism and burn more calories throughout the day. Taking a stimulant-free fat burner before an evening meal can keep you from overeating at night.
Avoid taking a thermogenic that contains stimulants at night or you may experience insomnia and have trouble sleeping.
How To Take A Thermogenic Supplement
There are several guidelines to follow when taking a thermogenic supplement. For the best results, and to avoid negative side effects, follow the recommendations outlined below.
1. Always Take With Enough Water
This one goes without saying. Without enough water, your body is not going to be able to process the supplement properly. Because of the ingredients, you may experience unpleasant side effects such as dehydration.
2. Always Take As Directed
Always take the product as directed by the manufacturer and follow the recommended dosage. Some products also require cycling, or time off of the supplement, after a set number of days. So make sure to consult the label for any specific directions before taking a product.
3. Do Not Take More Than The Recommended Dosage
If you’re taking a stimulant-based fat burner, make sure to stay within the recommended dosage or you may find yourself with an increased heart rate, lack of sleep or other side effects.
4. Do Not Take With Other Medications
Consult your physician before taking any thermogenic. If you are on medication, there is a chance that certain ingredients may not interact well with your prescription drugs. This may cause negative interactions and can lead to serious health problems.
5. Do Not Take With Other Diet Pills
Do Not combine a thermogenic fat burner with other diet pills, whether over the counter or Rx. This may cause you to experience an overdose of stimulants which can lead to dangerous health consequences.
How Long Do Thermogenics Take To Work?
A lot of people ask how long it takes for thermogenics to work. Many factors can affect how quickly your body begins to shed weight such as:
1. The Type of Thermogenic You Take
Some thermogenics are more effective than others. Fortunately, most weight loss supplements on the market today are highly efficient and produce fast results. While some products work faster than others, it is all going to depend on the type, the individual dosages, and the quality source of the ingredients.
2. Your Current Body Weight
If your current weight is significantly heavier than your goal weight, you will see faster results on the scale and less in the mirror. On the other hand, if you are closer to your goal weight, you will probably be able to see more results in the mirror but it may not reflect on the scale.
3. Other Weight Loss Products You Take
Some thermogenics are more likely to work faster if used in conjunction with other high-quality appetite suppressants such as Garcinia Cambogia or Glucomannan. If you are looking for the quickest visible results for a vacation or an event, the combination with a natural diuretic such as dandelion root extract to shed some extra water weight will definitely have a quicker effect.
4. Your Weight Loss Goal
If you’re just looking to lose a few pounds, you can expect to see results within the first week or two of taking your thermogenic. If you want to see drastic changes quickly when you have a ton of weight to lose, however, weight loss will seem more gradual so start small.
Are Thermogenics Safe?
In general, thermogenic supplements are safe for most healthy adults.
However, it’s important to remember that some products on the market may contain higher than average levels of stimulants which may make them unsafe for certain individuals.
To find out if a weight loss supplement is safe for your body, you should do the following:
1. Check The Ingredients
Always check the ingredients list on the label. Most thermogenic supplements contain caffeine, but some products may contain levels that are beyond healthy. We have seen products contain as much as 450mg of caffeine, which will cause serious problems in individuals sensitive to stimulants.
2. Read Customer Reviews
Read user reviews of the product to find out if anyone has experienced any negative side effects that may not be common. Some products are known to trigger side effects in a large number of people who report symptoms such as dehydration, nausea, and headaches.
3. Consult With A Professional
It cannot be stressed enough to consult with your doctor before taking any type of weight loss pill. Nobody knows your medical history like your doctor and they will know if a product may create any side effects in your particular situation.
Thermogenic Side Effects
Some thermogenic fat burners can have some undesirable side effects, but this is usually the case when people take more than the recommended daily dosage or have an underlying condition. This is why it is important to check with your doctor before starting a fat-loss supplement regimen.
These types of supplements are often known to produce the following side effects:
- Headaches
- Dehydration
- Mood swings
- Nausea
- Increased heart rate
While some minor side effects might be worth enduring for the sake of reducing overall body fat, the more serious side effects can be harmful to your health and should be avoided at all costs.
Again, it’s important to consult a medical professional before beginning any kind of nutritional supplement program, including over-the-counter thermogenics.
Thermogenic Fat Burner Ingredients
The best thermogenic fat burners should always have a blend of the highest-quality ingredients that specifically target fat loss.
While budget-priced weight loss products claim to be effective, they often only contain one beneficial ingredient, such as Caffeine, Green Tea Extract or Green Coffee Extract.
These may be great for someone needing to lose only a few pounds, but by themselves will not produce maximum results for those who have a large amount of weight to lose.
Thermogenics that include a blend of several high-quality ingredients will work best to spark weight loss.
Here are some of the best thermogenic ingredients to look for in a product:
2-Phenylethylamine Hydrochloride (PEA)
This ingredient is a mood enhancer that can help improve your cognitive state without increasing your heart rate or blood pressure; this ingredient is especially beneficial for people who find that depression makes it harder for them to stick with their weight loss plans.
Bitter Orange (Citrus Aurantium)
Also known as Citrus Aurantium, this natural extract is a weight-loss powerhouse. It can significantly increase your metabolic rate and help you shed fat. Bitter Orange works to boost your energy levels as well, which can make working out more fun and less of a chore.
Caffeine Anhydrous
This thermogenic ingredient is the most popular and quite arguably the most effective form of caffeine. Caffeine Anhydrous can boost your metabolism, make you feel fuller for longer periods, and speed up weight loss.
Chili Pepper Extract (Capsaicin)
By increasing your metabolic rate and opening up the pathways that can release stored fat, red chili pepper extract is one of the best ingredients to use in thermogenic products. It has also been shown to increase the amount of oxygen your muscles use, which can help you burn fat during workouts.
Garcinia Cambogia
By curbing your appetite and stopping fat production, this fruit extract can help you shed pounds quickly and prevent you from overeating on calorie-dense meals.
Green Coffee Bean Extract
By boosting metabolism, increasing energy levels, and reducing cravings for sweets and other high-calorie foods, green coffee bean extract can help you lose weight without even feeling like you’re dieting.
Green Tea Extract (EGCG)
This antioxidant-packed natural extract helps to stimulate thermogenesis in your body by boosting your metabolic rate and suppressing your appetite.
Guarana Extract
Guarana is an excellent natural source of caffeine and has been used in traditional cultures to increase energy levels and boost mental focus. It is useful for weight loss because it contains certain ingredients that make it easier for your body to burn sugar and fat instead of storing them.
Hordenine HCL
This stimulant ingredient is used widely in weight loss products because of its ability to increase energy levels and suppress appetite.
L-Carnitine
This ingredient is a powerful nutrient that is responsible for transporting fatty acids into the mitochondria of your cells so they can be burned for energy. L-Carnitine always stacks well for fat loss with other stimulants on this list.
Synephrine HCL
Synephrine is an alkaloid that can speed up your metabolism, boost energy levels, and increase fat loss by increasing the total number of calories you burn throughout the day.
Yohimbine HCL
This popular thermogenic ingredient works to increase fat loss while suppressing your appetite, which can help you prevent weight gain that might occur once you begin eating normally again.
FAQ – Frequently Asked Questions
Here are some frequently asked questions regarding thermogenic supplements. If you have any further questions, ask them below in the comments section and we will answer them as best as possible and add them to this section.
Q. What Is The Best Time To Take A Thermogenic Fat Burner For Maximum Effect?
The best time to take a thermogenic fat burner for maximum effect is before you train, followed by eating a healthy meal afterward. This protocol allows you to burn the most calories in your workout session and then recover while staying energized throughout the day.
Q. When can I take a fat burner to help control my appetite?
If you are taking a thermogenic fat burner to help you control your appetite, taking it first thing in the morning and then again before lunch can help you manage your calories for the rest of the day. Just make sure not to take a thermogenic supplement before dinner or in the evening because you won’t be able to sleep.
Q. Do Fat Burners Cause High Blood Pressure?
A common question people have about weight loss supplements is whether or not they raise your blood pressure. Fortunately, many thermogenic diet pills won’t cause any alterations to the cardiovascular system because they do not contain ingredients that elevate blood pressure significantly.
Q. Do Thermogenic Fat Burners Make You Hot?
When you take diet pills containing ingredients such as Capsaicin (hot pepper extract), your body temperature will increase slightly from the thermogenic effect taking place in your body. It is important to monitor your body temperature and ensure it doesn’t rise too much as this can be a sign that there are other problems with your health.
Q. Do Thermogenic Fat Burners Break A Fast?
To technically break a fast, the supplement must contain more than trivial amounts of protein or carbohydrates. Since most thermogenic supplements don’t contain protein or carbs, this question is usually not relevant.
Q. Do Thermogenic Fat Burners Make You Poop?
Some thermogenic fat burners contain stimulants such as caffeine or guarana which can cause diarrhea in portions of the population. If you are concerned about how your body will react to a certain dose, always begin with a small amount and work your way up until you find an optimal dosage that works for you.
Q. Can You Take Thermogenic Fat Burners On Keto?
Since you are in a deep fat-burning state while in ketosis, a thermogenic supplement will work well on a Ketogenic diet. You will most likely experience an even greater increase in your energy levels, making it easier to get through the day.
Final Thoughts On Fat Burners
There are many different reasons why you should choose a thermogenic fat burner as one of the supplements in your weight loss regimen.
Thermogenics can help you burn more calories than you would without supplementation, and with so many high-quality products on the market today, finding the right fit for your lifestyle doesn’t have to be difficult.
Choosing thermogenic can help you lose weight without compromising your health or safety.
