The 8 Best Non-Stimulant Fat Burners in 2023

If you’re a frequent user of fat burner supplements, you’ve likely encountered the bodily effects of their stimulants. The increase in heart rate and energy levels is what some look for in a fat burner supplements. For others, these effects can contribute to anxiety or difficulty sleeping.

If you find yourself sensitive to these stimulants, which usually consist of caffeine and yohimbine, a non-stimulant fat burner supplement might be right for you.

Below you’ll find the best non-stimulant fat burners we’ve come across while reviewing dozens of nutritional supplements.

When used in conjunction with a proper diet and consistent workout regimen, stimulant-free fat burners can be an effective addition to your weight loss journey.

Related: Best Thermogenic Pre Workouts

Top 8 Best Non-Stimulant Fat Burners

ASC Supplements – Caliente (Best Overall Stim-Free Fat Burner)

The ingredients in ASC’s Caliente supplements use 14 ingredients to enhance thermogenesis (increase body heat), suppress appetite, increase fat metabolism, and reduce water retention.

During your cardio routine, it’s best taken in the daytime to burn calories faster and work up a sweat.

Its patented ingredients provide more thermogenic energy.

Key ingredients:

• Dandelion Extract – 250mg

• Grains Of Paradise (Aframomum Melegueta) – 225mg

• Coleus Forskohlii Extract – 125mg

• Green Tea Extract – 250mg

• Capsinoids – 50mg

• Olive Leaf Extract – 100mg

• Evodiamine – 50mg

Huge Supplements – Exterminate (Best Stim-Free Fat Burner for Appetite Suppression)

Exterminate is a caffeine-free fat burner that is highly effective for appetite suppression.

• The supplement aims to burn fat all day with thermogenic effects and increase metabolism.

The advanced and science-backed formula of natural ingredients works to burn stored fat quickly.

Green tea extract boosts energy levels and suppresses appetite without the need for stimulants.

Key ingredients:

• Green Tea Extract (camellia sinensis) (Leaf) (std 15% EGCG) – 600mg

• Naringin (from citrus fruit) – 300mg

• White Willow Extract (Salix alba) (bark) – 250mg

• Advantra Z (Citrus aurantium (fruit), standardized to 30% p-Synephrine) – 200mg

• L-Tyrosine – 150mg

• Hordenine HCI – 100mg

• Thermo V (Stearoyl vanillylamide, Capsaicin, Zingerone) – 20mg

• Huperzine A 1% (Huperzia serrata leaf extract) – 3mg

• T2 (3,5 Diiodo-L-Thyronine) – 150mcg.

Transparent Labs – Stim-Free Fat Burner (Best Stim-Free Fat Burner to Reduce Cravings)

Transparent Labs Stim-Free Fat Burner consists of potent and clinically tested natural ingredients that heavily reduce cravings.

Caffeine-free and with no stimulants, users report no crashes or energy depletion.

This supplement boosts both your metabolism and your mood as well.

It contains B vitamins to support healthy energy levels and metabolic function.

It’s also worth noting that Transparent Labs Stim-Free Fat Burner is vegetarian friendly!

Key ingredients:

• Acetyl L-Carnitine – 750mg

• Forslean (10% forskolin) – 250mg

• 5-HTP – 150mg

• Rhodiola Rosea – 100mg

• Cayenne Pepper – Extract 50mg

• Fucoxanthin – 10mg

Leanbean (Best Stim-Free Fat Burner for Women)

Leanbean is formulated especially for female bodies and targets hormonal changes related to pregnancy and menopause.

Ingredients work to eliminate cravings and suppress appetite. In fact, many users noticed noticeable changes in body weight, size, and shape. Leanbean’s organic ingredients work to slow down metabolism significantly.

Key ingredients:

• Konjac Fiber – 3000mg

• Choline– 82.5mg

• Chromium Picolinate – 35mcg

• Chloride – 35mcg

• Zinc – 11mg

• Green Coffee – 50mg

• Turmeric – 50mg

• Garcinia Cambogia – 100mg

• Acai Berry – 20mg

Burn Lab Pro (Best Stim-Free Fat Burner for Maintaining Muscle Mass)

Burn Lab Pro is aimed at individuals who want to burn fat faster while protecting lean muscle mass, even during fasts.

Free of stimulants, this supplement results in few side effects and does not interfere with pre-workouts

Often used by competitive athletes, the supplement contains no ingredients that have been banned by the National Collegiate Athletic Association (NCAA).

Preservation of muscle mass also allows users to improve body composition while mobilizing stored fat.

Burn Lab Pro also increases calorie expenditure while your body is at rest and even supports insulin action.

Key ingredients:

• HMB (from Calcium HMB)- 1500mg

• Forslean (10% Forskolin) – 375mg

• Capsimax Cayenne Pepper Extract – 75mg

• BioPerine – 3.75mg

• NutriGenesis GTF Chromium – 90mcg

• Calcium -262.5mg

Cheetah Burn – Alpha Lion Stim-Free Fat Burner (Most Comprehensive Ingredient Label)

Cheetah Burn consists of a well-balanced ingredient list that enhances energy, focus, thermogenesis, and appetite suppression.

With six patented ingredients, the supplement is known to be reliable with few side effects.

Grains of Paradise, GBB, and Capsimax work together to enhance thermogenesis to help you work up more of a sweat.

Key ingredients:

• Dandelion Extract – 100mg

• Green Coffee Extract – 500mg

• Ashwagandha Extract (Withania Somnifera) – 150mg

• Grains Of Paradise (Aframomum Melegueta) – 20mg

• Coleus Forskohlii Extract – 125mg

• Capsinoids – 25mg

• Selenium – 40mcg

• Evodiamine – 50mg

Kaged Muscle – Clean Burn (Best Value Non-Stim Fat Burner)

Kaged Muscle allows users to maintain healthy energy levels that speed up metabolism and burn more calories throughout the day.

All-natural ingredients also work to regulate blood sugar levels to reduce the risk of diabetes and weight gain and prevent spikes of insulin.

The thermogenic compounds suppress appetite and keep calories within your energy deficit.

Vegetarian and particularly helpful for female diet plans.

Key ingredients:

• Chromium (ChromeMate®) – 134mg

• L-Carnitine Tartrate (Carnipure™) – 1,000mg

• Green Tea Extract (95% Polyphenols, 80% Catechins, 50% EGCG) – 333mg

• Gymnema Sylvestre Extract 75% (GS4 PLUS®) – 100mg

• Capsicum Fruit Extract (Capsimax®) – 33mg

InnovaPharm – Nova Lean Stim-Free Fat Burner (Best Powder Stim-Free Fat Burner)

Nova Lean uses carnitine as an effective stimulant-free ingredient to burn fat quickly.

The ingredients include compounds that increase fat oxidation and downregulate adipocytes, a tissue that specializes in storing energy as fat.

Nootropics help to enhance focus and thermogenesis while increasing mental and physical energy.

Key ingredients:

• L-Carnitine L-Tartrate – 2g

• Grains Of Paradise (Aframomum Melegueta) – 50mg

• Coleus Forskohlii Extract – 150mg

• Chromium – 200mcg

• Olive Leaf Extract – 150mg

• Choline Bitartrate – 1.5g

• L-Carnitine – 1g

How to Choose the Best Stim-Free Fat Burner for You

Whether you prefer a stimulant-free fat burner or a supplement with caffeine, choosing the right fat burner requires you to consider various factors. For any fat burner supplement to be effective, it must be taken in conjunction with a well-planned diet and a consistent workout routine. Non stim fat burners are not to be used alone and are meant to act as a helping hand to proper diet and exercise.

Important Stim-Free Fat Burner Ingredients and Their Benefits

It’s normal to be overwhelmed by the endless list of ingredients you’ll find on a fat burner label. Fortunately, we’ve compiled the most effective ones to look out for. It should be noted that for many of these ingredients, more studies are needed to indicate their effectiveness towards weight loss.

L-Beta-Aminoisobutyric Acid

When we exercise, the PGC-1α protein triggers the secretion of the L-Beta-Aminoisobutyric Acid or BAIBA. As it reaches the white fat cells, our thermogenic genes are activated to increase metabolism and allow us to burn fat much more quickly. This natural chemical targets metabolism and can regulate insulin and cholesterol.

Grains of Paradise

Often used as a spice and medicine, grains of paradise decrease inflammation and help burn body fat. It has been used traditionally to fight obesity, heart disease, and diarrhea.

Acetyl L-Carnitine

L-Carnitine helps to move fatty acids into our cells so that they can be burned and used for energy. Studies are still underway, but some have shown that it can aid in weight loss when used in conjunction with diet and exercise, particularly for older, obese adults.

Green Coffee Bean Extract

Extracted from coffee beans that have yet to be roasted, this compound’s antioxidant effects can lower blood pressure and aid weight loss. Since these beans have yet to be roasted, they retain their chlorogenic acid content, which can help you lose weight.

EGCG (Green Tea Extract)

Studies have shown that drinking two cups of green tea per day can lower body fat and weight. Although, this is largely due to the caffeine content. While it might not be effective in non-stimulant fat burners, EGCG (i.e. green tea extract) has been linked to weight loss when taken in conjunction with caffeine.

Capsaicin

Found in chili and cayenne peppers, Capsaicin has been known to support weight loss and boost metabolism to burn fat. Its heat also increases oxygen consumption and body temperature, burning off more calories. One study showed that supplementing 6 mg of capsaicin daily with consistent diet and exercise can significantly reduce belly fat.

Conjugated Linoleic Acid (CLA)

CLA has been the most comprehensively studied weight loss supplement in the world. It has recently been considered a potential weight loss treatment for obese individuals that can reduce body fat levels. Some studies show that it can reduce food intake, break down fat, and decrease the production of fat cells. It’s also been linked to reducing body fat while maintaining muscle mass, improving body composition. This makes it a potential ally in weight management.

5-HTP

5-Hydroxytryptophan is an amino acid that our bodies produce naturally to create serotonin. It’s been known to act as a mood stabilizer for individuals with depression, anxiety, and sleep disorders. 5-HTP may also increase the feeling of being full, thus decreasing your desire to eat.
While weight loss often increases the growth of hormones that inspire appetite, 5-HTP can counteract these hormones and suppress appetite as a result. 5-HTP may also regulate blood sugar levels and inhibit the intake of calories from carbohydrates.

Glucomannan (Appetite Suppressant)

Glucomannan is a low-calorie dietary fiber that takes up space in your stomach to promote the feeling of fullness. It can also delay stomach emptying and reduce the absorption of protein and fat. Studies have also seen it feed the good bacteria in our intestines, reducing fat gain.

Forskolin

Forskolin is a compound that stimulates the release of stored fat from fat cells when we need it for energy. Although, it should be noted that this compound only promotes weight loss when the energy going out exceeds the energy going in.

InnoSlim

InnoSlim works to increase energy expenditure while reducing energy intake, which leads to weight loss. Studies still need to be conducted to determine the effectiveness of InnoSlim.

White Willow Extract

White willow bark contains salicin, which has been suggested to deliver the same results as ephedra. It should be noted that ephedra contains ephedrine, which is a compound that has been banned in the United States for having a direct link to cardiac deaths. Although many studies have yet to conclude that it aids in weight loss, Willow bark is relatively safe and is still often used in fat-burners.

Synephrine

Synephrine, also known as Bitter Orange, is another compound similar to ephedra. It’s known to cause high blood pressure and increased heart rate as it works to break down fats. It has been banned by the National Collegiate Athletic Association (NCAA), so if you are an athlete, you might want to stay away from fat burners that include it.

FAQs About Stim-Free Fat Burners

The following are some commonly asked questions regarding non-stimulant fat burners and fat burners in general.

How is a stim-free fat burner different from a typical fat burner?

When a stimulant is present in any substance, it works to heighten your mental and physical state using an active additive such as caffeine. It’s common for many individuals to be overwhelmingly sensitive to stimulants, or they develop adverse bodily responses over time. These can include anxiety, high palpitations, insomnia, and headaches.
With a stimulant- or caffeine-free fat burner supplement, you can avoid these adverse reactions and side effects while still losing weight and naturally boosting your metabolism to burn fat.

What are some advantages of stim-free fat burners vs. fat burners that contain stimulants?

Stimulant-free fat burner contains a specialized formula of natural ingredients that do the same job burning fat without overstimulating your body. As more and more consumers are interested in leading a healthy life, stimulant-free fat burners are growing in popularity as individuals try to avoid unwanted side effects from caffeine-based fat burners.
Fat burners that contain stimulants should not be used for periods that exceed eight weeks, while non-stimulant fat burners are safe for long-term use and typically result in fewer instances of rebound weight gain.
Benefits of non-stimulant fat burners include:

• They use thermogenesis to increase body temperature rather than increase your heart rate, which leads to cardiac issues.

• They regulate your energy levels continuously rather than receiving short spikes of energy that are followed by crashes.

• You don’t have to keep taking them early in the day in fear of them keeping you up all night.

Risks of consuming fat burners with stimulants include:

• Increased anxiety

• Heart palpitations

• Trembling

• Insomnia

• Mood swings

• Nervousness

• Irritability

• Elevated blood pressure

• Gastrointestinal problems

Do Stim-Free Fat Burners Work?

While non-stimulant fat burners can effectively help you reach your fitness goal, they won’t be as powerful as those with stimulants like caffeine. However, because you are free to use non-stimulant fat burners over more extended periods, you could see comparable results over time.
For best results, you might want to use a combination of both types of fat burners, allowing them to work synergistically to increase metabolism and burn fat effectively while maintaining a balanced and healthy lifestyle.

Conclusion

Based on our roundup review, we’ve determined that Transparent Labs and Burn Lab Pro are our top two contenders when it comes to the best non-stimulant fat burners.
Transparent Labs’ inclusion of B vitamins and cayenne pepper extract make it a great choice to burn fat and reduce craving with simple, clinically tested, and effective ingredients. We also love that it contains a mood booster and that it’s vegetarian-friendly.

Burn Lab Pro is impressive enough with its formulated fat burner that also preserves and maintains muscle mass. We love how the ingredients fail to interact with pre-workouts and how it regulates calorie expenditure, even at rest. With a shortlist of effective ingredients that are all NCAA friendly, Burn Lab Pro is an easy choice.
In conclusion, no supplement should be held as a primary method for weight loss. It takes dedication to a proper diet and eating habits, a consistent exercise routine, and additional help from fat burners to help you reach your goal safely and effectively.

If you think you are having adverse reactions to regular fat burners, we definitely suggest seeking out any of the non-stimulant options on our list. Suppose you continue to experience issues like heart palpitations, anxiety, insomnia, or high blood pressure. In that case, it’s recommended that you cease the use of fat burner supplements and consult your doctor before resuming use.

About Kyle Risley

Kyle Risley founded Lift Vault in 2016 to make finding great powerlifting programs easier. Since then, the site has grown to include hundreds of programs for strength, bodybuilding, Olympic weightlifting, and more. He currently lives in Massachusetts and continues to compete in powerlifting.