(Ad) If you've been trying to lose weight and burn fat to no avail, perhaps it's time to consider a fat burner supplement. The best fat burners contain thermogenic ingredients that help boost your body's metabolism, burn belly fat, and suppress appetite.
Most of the best fat burning supplements also contain ingredients that help increase energy levels, making it easier to power through your day without feeling fatigued and cranky.
In a nutshell, fat burners can help significantly speed up your weight loss process and help you reach your body goals faster than diet and exercise alone.
But with so many thermogenic fat burner supplements on the market to choose from, picking the right product can be overwhelming. Unfortunately, not all fat burning pills are created equal and some don't even work at all.
To help you decide, we've reviewed the best fat burners on the market. We evaluated over 20 of the top fat burner supplements on factors such as ingredients, dosage, price, reviews, and effectiveness.
If you're ready to accelerate your weight loss journey, here are the five best fat burner supplements of 2021.
The 5 Best Fat Burners on the Market
- PhenQ: Highest quality and best overall
- LeanBean: Best for women
- Instant Knockout: Best for men
- Burn Lab Pro: Best ingredients
- Phen24: Best for increasing metabolism
#1 PhenQ: Highest Quality and Best Overall
PhenQ is our top choice for the best fat burner supplement of 2021. Even though renowned supplements manufacturer Wolfson Berg Limited only released PhenQ last year, this fat burner has already helped more than 190,000 customers lose weight.
PhenQ helps you lose stubborn fat in five ways:
- suppressing fat production
- burning existing fat cells
- reducing appetite
- boosting energy levels
- improving mood to keep your morale up while dieting
To achieve these goals, PhenQ uses a trademarked fat-burning formula called α-Lacys Reset®, which works by activating the enzyme AMP-kinase for thermogenesis.
Also, PhenQ contains other natural ingredients that attack belly fat, including Capsimax, an established concoction of compounds that facilitate weight loss. This powder blends capsicum, piperine (black pepper), caffeine, and niacin (vitamin B3) to reduce abdominal fat.
Wolfson Berg Limited consulted nutritionists, health experts, and fitness professionals while developing the PhenQ ingredient list:
- α-Lacys Reset®
- Capsimax powder
- Chromium picolinate
- Caffeine
- Nopal
To shed excessive body weight with PhenQ, take the weight loss pill once in the morning and again at lunchtime.
Men and women looking for fat burners to help them achieve a dramatic weight loss transformation can end their search with PhenQ. This one fat burner does everything you need to kick your body's fat-burning capabilities into high gear.
- Powerful five-in-one weight loss formula
- Over 190,000 satisfied customers
- Huge savings when buying more than a one-month supply
- 60-day money-back guarantee
Click Here for the Lowest Price on PhenQ
#2 Leanbean: Best for Women
Leanbean is our choice for the top thermogenic fat burner for women. In a world full of fat burners geared towards gym bros and their gains, trusted U.K.-based Ultimate Life Ltd developed the best fat burner for women who want to keep fit: Leanbean.
Women everywhere echo Leanbean's claims that this weight loss supplement engineered for the female body helped boost their metabolism, banish their cravings between meals, and give them an energy boost for their workouts.
Unlike male fat burners, Leanbean doesn't contain stimulants like caffeine, which can cause adverse side effects in women like nausea and jitters due to their hormones and lower body mass. Instead, Leanbean uses other thermogenic fat burner ingredients like turmeric and choline to amp up your body's fat-burning process.
For appetite suppression, Leanbean provides a hefty dose of a fiber called glucomannan, and the fat burner also includes a B-vitamin complex to give you more energy to push through even your toughest gym sessions.
In total, the Leanbean formula contains 12 fat burner ingredients:
- Glucomannan
- Choline
- Chromium picolinate
- Vitamin B6
- Vitamin B12
- Chloride
- Zinc
- Green coffee
- Turmeric
- Garcinia cambogia
- Acai berry
- Piperine
Leanbean recommends taking two fat burner pills with a glass of water three times throughout the day, preferably about 30 minutes before each meal.
If you're a woman who specifically wants a fat burner for women, you've found the best one in Leanbean. After several weeks of taking Leanbean, stepping onto the beach in a new bikini will feel better than ever.
- Best thermogenic fat burner for women
- Increase energy levels without harmful stimulants
- Kickstarts your metabolism so you can finally achieve your body goals
- Specifically made for the female body
- 90-day money-back guarantee
Click Here for the Lowest Price on Leanbean
#3 Instant Knockout: Best Fat Burner for Men
Instant Knockout is the number one fat burner for men that want to burn fat, fuel workouts, and boost metabolism.
As the supplement's name implies, Roar Ambition Ltd originally developed Instant Knockout in England for MMA fighters—it even comes in a bottle shaped like a fist. However, you don't have to be a professional boxer to reach fighting weight using this fat burner for men.
When you take Instant Knockout, you'll maximize your fat metabolism with thermogenic ingredients, including green tea, suppress your appetite with glucomannan, and boost your energy for the gym with a jolt of caffeine.
Instant Knockout contains a total of 10 ingredients:
- Caffeine anhydrous
- Cayenne powder
- Glucomannan
- Green coffee extract
- Green tea extract
- GTF chromium
- Vitamin B6
- Vitamin B12
- Zinc
- Piperine
Four times throughout the day, open Instant Knockout's fist-shaped bottle and pop one of the capsules with a glass of water just before your meal or snack. Just make sure you don't take the fourth pill too late in the evening, or its caffeine may keep you from sleeping.
Although Instant Knockout claims that its formula is unisex, we think that men will especially love this fat burner for its muscle-building results.
If you're a vegetarian or vegan, however, be aware that the capsules contain gelatin.
- One of the best fat burners for men
- Effective for burning fat in the belly area and love handles
- Boost metabolism and energy levels
- High-quality, all-natural ingredients
- Money-back guarantee
Click Here for the Lowest Price on Instant Knockout
#4 Burn Lab Pro: Stimulant-Free Fat Burner
In 2019, British supplement manufacturer Opti-Nutra Ltd added Burn Lab Pro to its suite of "Lab Pro" products. The brand claims that its fat-burning formula will help people of all genders lose fat and pack on muscle—without using stimulants like caffeine.
When designing Burn Lab Pro, Opti-Nutra Ltd swapped common caffeine-filled fat-burner ingredients like green tea for substances that provide an energy boost without the headaches, anxiety, and racing heartbeat that caffeine often brings.
For example, Burn Lab Pro contains a high amount of HMB, a compound that helps build an essential amino acid called leucine. As an amino acid, leucine may contribute to energy production, but the HMB itself comes with health benefits, too.
Scientists believe that this compound helps preserve muscle mass as well as grow it, even in the face of a caloric deficit. Plus, HMB may even improve your performance in the gym. Honestly, we're surprised that more fat burners don't include this ingredient in their formulas.
Additionally, Burn Lab Pro includes fat burner ingredients like cayenne pepper, appetite-suppressing ingredients such as ForsLean from the Coleus forskohlii root, and other compounds for absorption and strength.
Take a look at the full list of Burn Lab Pro's natural ingredients:
- HMB (β-Hydroxy β-Methylbutyrate)
- Calcium
- Capsimax cayenne pepper extract
- ForsLean (Coleus forskohlii root)
- Nutrigenesis GTF chromium
- BioPerine black pepper extract
Before your daily workout, take two pills to burn fat with Burn Lab Pro—it's that easy.
If you're looking for a clean formula that delivers fat-burning results without caffeine-related side effects, then Burn Lab Pro deserves a space in your medicine cabinet.
- Rated as one of the best stimulant-free fat burners on the market
- Helps shed more body fat from every workout
- Lose weight naturally aet better results than diet and exercise alone
- Clean formula with no stimulants or synthetic additives (gluten-free)
- 30-day 100% money-back guarantee
Click Here for the Lowest Price on Burn Lab Pro
#5 Phen24: Best for Boosting Metabolism
Another Wolfson Berg Limited Product, Phen24, exists to help people reinvigorate their metabolism at all hours of the day—even during sleep. As a result, you should start to see the unwanted fat melt away.
Unlike other fat burners, Phen24 pays special attention to the stress hormone cortisol. Your body releases cortisol when you start your day, but if the cortisol persists into the night due to stress, the excess can cause slow metabolism and, thus, weight gain.
Therefore, your metabolism operates in two phases: daytime and nighttime, each with different needs.
To accomplish these two sets of goals, the innovative Phen24 regimen includes two different pills: one for the morning and one for nighttime.
During the day, PhenQ's thermogenic ingredients like cayenne pepper promote the conversion of food into energy to directly accelerate your metabolism, and a dose of caffeine gives you an energy boost as you go about your day.
At night, PhenQ uses ingredients such as Griffonia extract to reduce cortisol levels, which will curb sugar cravings to prevent nighttime binging and help you sleep better so that you will have more energy the next morning.
Daytime formula ingredients include:
- Zinc
- Manganese
- Copper
- Iodine
- Caffeine
- Guarana extract
- L-phenylalanine
- Cayenne powder
Nighttime formula ingredients include:
- Ascorbic acid (vitamin C)
- Calcium d-pantothenate
- Pyridoxine HCl
- Chromium picolinate
- Thiamine HCl
- D-biotin
- Molybdenum
- Glucomannan
- Griffonia extract
- Green tea leaf extract
- Hops extract
In the morning, take one Phen24 day capsule with breakfast. Then in the evening, take two Phen24 night capsules, with a glass of water or two, approximately 15 minutes before dinner.
If you believe that stress and low metabolism are responsible for your inability to lose weight, you should give Phen24 a try.
- Boosts metabolism 24/7
- Contains natural ingredients
- Provides free delivery worldwide
- Comes with a 60-day money-back guarantee
Click Here for the Lowest Price on Phen24
How We Chose the Best Fat Burners
Ingredients
Before recommending any of these natural fat burners to you, we read their nutrition labels carefully to make sure that they each contain proper weight loss ingredients, not empty filler ingredients like magnesium stearate and vegetable gum.
We also kept an eye out for banned ingredients like ephedra, sibutramine, or fenfluramine. Because the U.S. Food and Drug Administration doesn't regulate fat burner supplement manufacturers as strictly as pharmaceuticals, sometimes manufacturers get away with including ingredients in their products that could negatively impact your health.
Generally, we've found that the best fat burners use as few synthetic ingredients as possible because they tend to cause more side effects than natural ingredients. Every fat burner on our list contains mostly—if not completely—natural ingredients.
Most importantly, you want a weight loss supplement filled with ingredients that have shown the ability to help your body burn fat.
Dosage
Researchers recommend particular amounts of particular ingredients for a reason. If a fat burning supplement provides a key ingredient in an amount that's only a fraction of the recommended dose, then what's the point?
Therefore, we aimed to choose fat burner supplements with formulas that include high-enough amounts of fat-burning ingredients to help you lose weight.
To ensure that you get enough of each ingredient, we steered clear of fat burner supplements with proprietary formulas. Because a proprietary formula only lists the ingredients in weight order instead of disclosing the exact amounts, a fat burner manufacturer can stretch the truth regarding their products' content.
If we don't know the dosage, we can't say whether the fat burner works. We want you to know exactly how much of each ingredient you're getting.
Price
The price tag on a weight loss supplement will depend on several factors, including the dosage of research-backed ingredients, the number of pills per bottle, and the brand's reputation. This means you can expect that the most effective fat burners probably won't come cheap.
That said, while the monthly price of weight loss supplements usually ranges anywhere from $10 to over $70, the best fat burners don't always hit the high end of this spectrum. When making our list of the top fat burners, we tried our best to include a fat burner supplement for every budget.
In the end, only you can decide how much you're willing to spend on a thermogenic fat burner. Fortunately, most fat burner supplement brands offer major discounts on their official websites, and you can usually maximize your savings by buying in bulk.
Advertised Benefits
When we compiled all of the best fat burner supplements on the market, we made sure to look for fat burners that claim to provide the health benefits you're seeking, such as belly fat loss, suppressing appetite, boosted metabolism, and increased energy levels.
At the same time, we passed on fat burners with promises that sounded too good to be true. If a brand makes lofty claims about losing weight instantly, the supplement probably doesn't work without any diet or exercise.
Instead, we only included natural fat burners with results that sounded realistic.
Customer Reviews
When we evaluated each thermogenic fat burner, we read a variety of positive and negative customer reviews to get a better idea of whether or not the supplement works. A supplement brand will always say good things about its fat burner, but real people with real weight loss goals provide the objective insight you need to help you make your decision.
Of course, everyone has different body compositions, so keep in mind that a fat burner that worked spectacularly for one person might not give you the same results.
How Do Thermogenic Fat Burners Work?
Thermogenesis
The word "thermogenic" comes from the word "thermogenesis," which refers to the production of heat in the body. For fat loss to occur, your body has to burn calories through thermogenesis.
Your body naturally burns calories throughout the day through regulatory functions such as breathing and keeping your organs functioning. Still, the process accelerates when you increase your energy expenditure during exercise.
A fat burner increases thermogenesis because it provides ingredients, such as caffeine and cayenne pepper, that induce the calorie-burning process by raising your body temperature. As a result, your metabolism speeds up, and your body burns stubborn body fat.
Fat Oxidation
Remember, fat does serve a purpose: Your body stores it to use as energy in the future. However, certain fat burner ingredients like green tea extract can encourage your body to oxidize and burn stored fat.
Appetite Suppression
Lastly, thermogenic fat burners facilitate weight loss by helping you eat less. Weight loss pills typically have high concentrations of fibers like glucomannan. Because fiber takes longer to pass through your digestive system, you'll feel fuller for longer and experience fewer hunger cravings that compel you to grab a snack.
Some fat burners also suppress your appetite by dulling the signals of key hunger hormones. For instance, stimulants such as caffeine impede the production of ghrelin, the hormone that tells your brain that your stomach is empty.
Top Ingredients Found in the Best Fat-Burning Supplements
Caffeine
The chances are that you already consume caffeine—the world's most commonly ingested psychoactive substance—whether through coffee, green tea, soda, or dark chocolate.
When you think of caffeine, the energy boost this nerve stimulant provides likely comes to mind. After all, it's the reason why most people drink caffeinated beverages. Caffeine increases your energy levels by activating the release of neurotransmitters that reduce fatigue. This increase in alertness will help you push through your most strenuous workouts.
In addition to its energy-boosting properties, many fat burner supplements include caffeine due to the way it blocks a nervous system depressant called adenosine, causing the release of fat-burning hormones like norepinephrine to increase.
As a result, your metabolism will increase as well, even when you're at rest. In fact, a study revealed that a 100 mg dose of caffeine could boost your resting metabolic rate by up to four percent, helping you burn more calories, lose weight, and burn fat.
Green Tea Extract
Packed with antioxidants called catechins, green tea makes an effective fat burner ingredient in addition to a healthy drink. The principal catechin in green tea, epigallocatechin gallate (EGCG), increases the rate at which the body converts excess fat into fatty acids by 15%. In particular, green tea extract decreases your body's levels of triglycerides, one of the main types of body fat.
Green tea extract can also boost metabolism by increasing the body's production of fat-burning hormones such as norepinephrine. Of course, green tea also contains caffeine, which will help tamp down your appetite and give you the energy boost you need to burn more calories during your workouts.
Conjugated Linoleic Acid (CLA)
One of the most common omega-6 fatty acids, CLA, naturally occurs in some animal products like cheese and butter. In research, CLA has demonstrated an ability to reduce belly fat, increase muscle mass, and suppress appetite.
In one 13-week study, 54 people who took 3.6 grams of CLA daily reported feeling less hungry than people taking a placebo.
Garcinia Cambogia Extract
Also known as Malabar tamarind, this small, green, pumpkin-shaped fruit grows in Indonesia. The skin of the Garcinia cambogia contains a chemical called hydroxycitric acid, which fat burner supplement manufacturers often add to appetite suppressants since it curbs cravings by boosting serotonin.
Hydroxycitric acid also contributes to thermogenesis by encouraging the body to convert stored fat into energy.
Green Coffee Bean Extract
Did you want to know something surprising? Before they're roasted, coffee beans have a green hue. You also probably didn't know that they get most of their caffeine through the roasting process.
However, unroasted, green coffee beans contain a helpful antioxidant that we don't get from the coffee we drink: chlorogenic acid. Chlorogenic acid in green coffee bean extract can improve your overall health by lowering your cholesterol levels and blood pressure.
Glucomannan
Extracted from the East Asian konjac root, this ingredient plays a key role in appetite suppression. Upon contact with water, glucomannan absorbs the water and swells to form a dense, gel-like fiber that takes up space in your stomach, helping you feel fuller for longer. A study by the European Union revealed that you need to take three grams of glucomannan to impact your appetite.
Raspberry Ketones
Raspberry ketones give raspberries their distinct aroma. A study on fat cells from mice and another on rats revealed that raspberry ketones can boost fat metabolism and increase levels of a hormone called adiponectin that regulates blood sugar levels.
Because you'd need to harvest 90 pounds of raspberries to get one dose of their ketones, scientists have created a synthetic version of the substance to use in weight loss supplements.
Who Should Use a Fat Burner Supplement for Weight Loss?
Anyone who has struggled to lose weight with diet and exercise alone can benefit from taking a fat burner supplement. That said, make sure you don't quit your current efforts. Thermogenic fat burners work best as part of a complete weight loss program including a healthy diet and exercise.
If you've had trouble burning fat, especially in those stubborn areas of the body, taking a fat burner supplement can be a great way to speed up your weight loss journey. The right fat burner can help you burn excess fat, prevent fat accumulation, and make losing weight much easier.
Anyone that's struggled with food cravings and snacking can also benefit from a natural fat burner supplement. As you likely already know, overeating and snacking are the two biggest culprits to any weight loss program. Many fat burners contain ingredients that help stifle cravings and reduce appetite, reducing your daily calorie intake.
As long as you take the weight loss pills as directed and maintain a healthy lifestyle, you should start to see that fat disappear in no time.
*This article is provided by an advertiser. Statements made are not meant to offer medical advice nor to diagnose any condition. Any studies cited here may be preliminary, and may or may not be peer-reviewed, and may or may not have sufficient participants to be statistically relevant. Anecdotal accounts should not be taken as scientific results. Products discussed in this article are not designed to diagnose, treat, prevent, or cure any disease. The FDA does not evaluate dietary supplements. Consult your doctor about possible interactions, allergies, and if you are considering using natural and/or dietary supplements for any condition. Individual results will vary.
