The Best Non-Stim Fat Burners for Maintaining Muscle, Appetite Suppression, and More

Here are the best fat burners you can take any time of day.

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When used judiciously — and we emphasize the word ‘judiciously,’ meaning used in conjunction with a well-planned diet and workout routine — the best non-stim fat burners can potentially help in a fat loss journey (though it’s worth noting diet and activity levels will still be the largest contributors in any weight loss plan). Whether you’re preparing for your first bodybuilding show or just focused on burning fat for your own benefit, it may be worth looking at these supplements.

Most fat burner products contain stimulants, typically caffeine (although sometimes it’s yohimbine). Plenty of people are a little sensitive to these ingredients, or they want to take their pills at night time or any time they don’t want to get jacked up.

Best Non-Stim Fat Burners

Editor’s note: The content on BarBend is meant to be informative in nature, but it should not be taken as medical advice. The opinions and articles on this site are not intended to diagnose, prevent, and/or treat health problems. Speak with your physician before undertaking any new weight loss regimen.

Best Non-Stim Fat Burner

This non-stim fat burner is high in ingredients that could help with metabolism and releasing fat stores. The coleus forskohlii and forskolin can help to increase fat metabolism, while the carnitine can help release fat stores and improve cognitive function. (4) In addition, the green tea extract can also help boost fat loss, and provide energy. You only need to take two capsules for a full dose, and the additional Bioperine may help your body absorb these ingredients even better. 

Jacked Factory Lean XT
Jacked Factory Lean XT
Jacked Factory Lean XT

This product contains 750mg of l-carnitine, 500mg of green tea extract, and 180mg of coleus forskohlii and forskolin. Plus, it has Bioperine to potentially help with absorption. 

Who Should Buy Jacked Factory Lean XT

  • People who are looking for a boost in cognitive function as well will like the carnitine in this supplement.
  • Anybody interested in the potential fat-burning effects of coleus forskohlii and forskolin as this is one of the most popular ingredients in these supplements.
  • Athletes; green tea extract and acetyl l-carnitine may help with energy production during exercise. (5)

Who Shouldn’t Buy Jacked Factory Lean XT

  • People who are looking for added fiber to help with appetite suppression will want to look elsewhere. 

The ingredients list is short, but Jacked Factory focuses on solid research and links to fat loss. If that’s your stumbling block, this may be the product for you.

[Related: The Best Types Of Supplements For Performance, Weight Loss, And Health]

Best Non-Stim Fat Burner for Appetite Suppression

Leanbean has a dozen ingredients, but it has a strong focus on what might be the most important aspect of weight loss: your appetite. Leanbean contains 12 ingredients. A big part of the appeal is glucomannan, a thickener made from the root of the konjac plant that research suggests can suppress appetite. (6) The ingredients list also has other fat burner stalwarts like cayenne pepper and green tea extract, and black pepper extract, which a 2016 paper found may increase metabolism. (7)

Leanbean fat burner seems a little low in green coffee extract and raspberry ketones, but we were pretty impressed. It contains a small amount of natural caffeine — 50 milligrams — which is less than a cup of coffee.

Leanbean
Leanbean
Leanbean

This fat burner, geared towards women, promotes fullness with three grams of Glucomannan, and has B vitamins for more energy and focus. Plus, you'll find 50mg of caffeine for a subtle boost in energy. 

Who Should Buy Leanbean

  • People who have trouble with their appetite during weight loss, LeanBean has a strong emphasis on this aspect.
  • Anybody who likes cayenne, garcinia Cambogia, turmeric, or green tea extract — these popular fat burner ingredients are well dosed in LeanBean.

Who Shouldn’t Buy Leanbean

  • People with a sensitivity to caffeine. The amount found in LeanBean is less than 10 percent of a small cup of coffee, but it’s worth mentioning.
  • Folks who like the green coffee and raspberry ketones, it’s a little low on these ingredients.

LeanBean’s tiny amount of caffeine may disqualify it for some consumers, but for the average person, it’ll be barely noticeable, and it’s otherwise a terrific product.

[Related: Intermittent Fasting 101: A Guide To Benefits, Muscle Gain, And More]

Best Non-Stim Fat Burner for Sleep

Some fat burners focus on increasing fat metabolism and others on promoting energy production, but Lean PM focuses on burning fat while you sleep.

Lean PM contains 300mg of green tea extract, which might elevate resting metabolism, 200mg of theanine, which may promote restfulness, and 5mg of melatonin that can help with sleep. Combined with Bioperine to potentially help with absorption, these ingredients can circulate through your body, doing work while you rest, so you are less likely to feel any jitters — all you have to do is take two capsules 45 minutes before bedtime

Jacked Factory Lean PM
Jacked Factory Lean PM
Jacked Factory Lean PM

Lean PM contains 300mg of green tea extract, which might elevate resting metabolism, 200mg of theanine, which may promote restfulness, and melatonin that can help with sleep. Plus, the Bioperine should be able to help you with absorption, as well. 

Who Should Buy Jacked Factory Lean PM

  • Those who like the idea of taking green tea extract to help burn stored body fat.
  • Athletes who want a fat burner specifically made to take before bed. 
  • Anyone who wants ingredients that may also promote restfulness and mood included in their fat burner will like the ingredients list on this product. 

Who Shouldn’t Buy Jacked Factory Lean PM

  • Those who want a fat burner they can take in the morning — this one can make you drowsy. 
  • Folks who are looking for more fat burning ingredients as this product focuses on restfulness too, so the fat burning ingredients are more minimal than other fat burners on the market. 

Lean PM is ideal for those who want their fat burner to do its work overnight as they rest — it’s got green tea extract and melatonin that can help do just that. 

[Related: The Lifter’s Guide To Magnesium: What This Nutrient Does For Strength]

Best Non-Stim Fat Burner To Reduce Cravings

The best fat burners, in our opinion, impact fat loss in multiple ways: boosting metabolism, appetite suppression, and increasing energy and focus. Leanbean came out on top because of its potent dosage and research-backed ingredients. This fat burner contains glucomannan, which can act as a natural appetite suppressant (thereby helping to reduce your cravings), and choline, which can help with fat metabolism. Plus, you’ll find vitamins B6 and B12, which can help with your energy throughout the day.

This product is marketed to women, but it’s a solid non-stim fat burner across the board — one of the only downsides is that you do have to take six capsules a day for a full dose. It’s also worth noting that this product does contain 50mg of caffeine, which is much less than a single cup of coffee, but not inconsequential. 

Leanbean
Leanbean
Leanbean

This fat burner, geared towards women, promotes fullness with three grams of Glucomannan, and has B vitamins for more energy and focus. Plus, you'll find 50mg of caffeine for a subtle boost in energy. 

Who Should Buy Leanbean

  • Anyone who wants a variety of ingredients working in concert to increase fat loss and energy expenditure.
  • People interested in energy boosters: Vitamins B6 and B12 are key for maintaining normal energy levels. 

Who Shouldn’t Buy Leanbean

  • Those who don’t want to have to take a lot of pills. Leanbean requires six daily. 
  • Anecdotally, it might not be ideal for people with very sensitive stomachs as the glucomannan can be harsh on some.
  • If you want a product free of caffeine entirely, you can find other options on this list that will work for you — this supp contains 50mg of caffeine. 

We like Leanbean for its wide variety of fat burning and appetite suppressing ingredients. If you’re okay with taking a decent number of pills, this supplement is the way to go to help suppress your appetite or reduce cravings overall. 

[Related: Could Baking Soda Be The Best Workout Supplement You’ve Never Tried?]

Best Non-Stim Fat Burner for Maintaining Muscle

Burn Lab Pro contains common fat-burning ingredients such as chili pepper extract and black pepper extract, both of which can increase the body’s temperature to help boost calorie burn. Additionally, Burn Lab’s formula includes HMB (Hydroxymethylbutyrate), which is thought to be linked to muscle retention and potentially even growth.

Burn Lab Pro
Burn Lab Pro
Burn Lab Pro

This formula includes HMB, an ingredient shown to help retain and build muscle mass. It does not contain any caffeine and has a variety of ingredients linked to muscle retention and fat loss.

Who Should Take Burn Lab Pro

  • Bodybuilders focused primarily on muscle gain and/or retention during a cut.
  • Vegans; this product is vegan-friendly.
  • Athletes who need their fat burners to be tested for banned substances.

Who Shouldn’t Take Burn Lab Pro

  • People who prefer caffeine in their fat burners. 

This product doesn’t have any caffeine, and so it may not give the jolt of energy needed to athletes who train first thing in the morning. Beyond that, this is an excellent pick for those maintaining hard-earned muscle mass — note that it’s not guaranteed, but we think it is the best bet on the market.

[Related: Nutrition For Bulking: 10 Tips For Intelligent Muscle Gain]

Best Non-Stim Fat Burner for the Money

Just because you’re on a budget doesn’t mean you can’t find a solid stim-free fat burner. This option may only contain four ingredients, but in the right combination, numbers don’t matter. You’ll find 750mg of l-carnitine, 500mg of green tea extract, and 180mg of coleus forskohlii and forskolin. Combine all of that with this product’s Bioperine for potential help with absorption, and you have a winning combo. Plus, you need only take two pills a day for a full dose, which is a lot fewer than some fat burners that require closer to six pills a day.

Jacked Factory Lean XT
Jacked Factory Lean XT
Jacked Factory Lean XT

This product contains 750mg of l-carnitine, 500mg of green tea extract, and 180mg of coleus forskohlii and forskolin. Plus, it has Bioperine to potentially help with absorption. 

Who Should Take Jacked Factory Lean XT

  • Buyers on a budget who are looking for a great combination of fat burning ingredients at a lower price point will like the cost and label on this product. 
  • Anyone who wants a fat burner that contains l-carnitine, which can help release fat stores and improve cognitive function.
  • Folks who are concerned with digestion will like that this fat burner contains Bioperine. 

Who Shouldn’t Take Jacked Factory Lean XT

  • Customers looking for a more robust ingredients list can find one, but it will likely be at a higher price point. 
  • Anyone who wants ingredients to help with appetite suppression will want to look elsewhere. 

If you’re on a budget but still want a fat burner that’s free of stimulants, this four-ingredient option provides a solid combination at a much lower price point than many of its competitors. 

Best Non-Stim Fat Burner for Women

First, it’s important to note that Leanbean contains 50 milligrams of caffeine from the green coffee extract. So, it’s technically not completely free of stimulants, but it’s a low, low dose of coffee. Leanbean, which is targeted at women, encourages fat loss on three fronts: appetite, energy, and metabolism. It contains 12 ingredients, such as the dietary fiber Glucomannan to keep you full, Vitamins B6 and B12 to support healthy energy levels, and chromium picolinate to stimulate metabolism that can support calorie burn. 

Leanbean
Leanbean
Leanbean

This fat burner, geared towards women, promotes fullness with three grams of Glucomannan, and has B vitamins for more energy and focus. Plus, you'll find 50mg of caffeine for a subtle boost in energy. 

Who Should Buy Leanbean

  • Folks who can handle a small amount of caffeine, like 50 milligrams.
  • Anybody who is a snacker and could benefit from a slightly reduced appetite.
  • People who appreciate fully-dosed ingredients. Leanbean has 100% of the recommended daily allotment for vitamins and minerals. 

Who Shouldn’t Buy Leanbean

  • People who are ultra-sensitive to caffeine. Leanbean doesn’t have much, but it does have some. 
  • Folks who prefer more extras in their fat burner. Though Leanbean has products like acai berry extract, green coffee bean extract, and choline, the doses are relatively low. 

Leanbean is great for women who prioritize metabolic health and energy when looking to lose weight. 

Best Non-Stim Thermogenic Fat Burner

Thermogenic fat burners increase your body temperature to potentially help you burn more fat. One of the main ingredients that does this is cayenne pepper extract — this fat burner contains 50mg of this ingredient along with other helpful fat burning ingredients. You’ll find 750mg of l-carnitine, 250mg of coleus forskolin, 150mg of 5-HTP, and 100mg of rhodiola rosea. The capsules are vegetarian friendly, and the recommended dose is two capsules twice daily. This fat burner is a little pricier than some others on this list, so anyone who’s shopping on a budget may want to opt for a lower-cost product. 

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Transparent Labs Fat Burner Stim-Free
Transparent Labs Fat Burner Stim-Free
Transparent Labs Fat Burner Stim-Free

This product uses science-backed doses of cayenne, 5-HTP, Coleus Forskolin, and more. Each two-capsule serving provides 750 milligrams of L-carnitine.

Who Should Buy Transparent Labs Fat Burner Stim-Free

  • Folks who are specifically looking for thermogenic ingredients will like the cayenne pepper in this product. 
  • Anybody who wants a robust list of fat-burning ingredients rather than just one or two — this product contains six ingredients that cater to fat burn. 
  • People who want an added dose of vitamin B12 to potentially help with energy — this product has 2.4mcg. 

Who Shouldn’t Buy Transparent Labs Fat Burner Stim-Free

  • People who are looking for a budget-friendly buy — this is not the least expensive option on our list. 
  • Folks who don’t want to have to take four pills per day will want to look elsewhere. 

Transparent Labs offers a fat burner with a wide variety of ingredients that specifically work to help with fat burn, along with a dose of vitamin B12 to potentially help keep energy levels high. 

Best Non-Stim Fat Burner Pre-Workout

For those looking for a non-stim fat burner combined with their pre-workout, this product is your answer. Choline can help play a role in the metabolism of fat, and this pre-workout contains 500mg of choline bitartrate. In addition, you’ll find traditional pre-workout ingredients, like 6,000mg of citrulline malate, 4,000mg of BCAAs, 4,000mg of beta-alanine, and 1,300mg of taurine. You only need one scoop mixed with water for a full dose, but this product is a bit pricier due to the robust ingredients list. However, it does come in six delicious flavors — Strawberry Lemonade, Sour Grape, Blue Raspberry, Green Apple, Tropical Punch, and Orange.

Transparent Labs Stim Free Pre-Workout
Transparent Labs Stim Free Pre-Workout
Transparent Labs Stim Free Pre-Workout

An unusually powerful pre-workout that's packed with clinically effective doses of ingredients linked to everything from power to endurance. All of this without the use of caffeine or other stimulants.

Who Should Buy Transparent Labs Stim Free Pre-Workout

  • Folks who want a pre-workout that can double as their fat burner will like the choline in this pre. 
  • Those who like to take powder supplements. This pre-workout comes in six different flavors of powder. 
  • Customers who are looking for a robust ingredients list. This is not just a fat burner — it can also help provide energy and focus for a solid workout at the gym. 

Who Shouldn’t Buy Transparent Labs Stim Free Pre-Workout

  • Anyone who is on a budget will want to opt for one of the less expensive options on this list. 
  • Folks who are just looking for a stim-free fat burner. This is a pre-workout that contains fat-burning ingredients. 

If you’re already keen on taking pre-workout, this product will allow you to combine your pre-workout and fat burning supplements. While it may seem more expensive upfront, it can actually knock out two supplements in one go, which may actually end up costing you less in the long run.

How We Decided Our Picks

When assessing the usefulness of a fat burner supplement, we looked at several factors. Sure, it has green tea extract, but is that enough? Here’s what you should think about.

Fat Oxidation

Perhaps the most popular ingredient in “fat burners” as this means it helps to burn fat, or more specifically, it helps to increase the amount of energy you burn from stored fat compared to stored carbs. Popular examples include green tea extract and l-carnitine.

Increasing Metabolic Rate

Increasing metabolic rate can be described as whether or not a product burns more calories. A popular example is cayenne peppers, which some research has found to burn an extra 50 or so calories, depending on the dosage. Other examples include hordenine and synephrine, found in Legion’s Phoenix.

Appetite Suppression

There are a few ways appetite suppression works. A popular one is with ingredients that expand in the stomach, like glucomannan (found in LeanBean) and psyllium husk. A more popular method is 5-HTP, which may help with serotonin production, which appears to help with satiety and cravings.

Transparency

Scores of fat burners hide their ingredients behind proprietary blends so that the customer doesn’t know the exact amount of each. It helps them to keep their formula from being stolen by competitors, sure, but it also means that you don’t know how effective the product is.

What To Consider Before Buying

These products are prone to exaggeration on the part of the manufacturers and wishful thinking by consumers. Make sure you’re mindful of these points.

Know Your Calories

Way too many people think adding a fat burner, with no other changes to their diet, will produce a six-pack. Fat burners might help burn some extra calories, but if you don’t know how many calories you’re burning, it’s a moot point. Find out your ideal calories with a macro calculator — then adding a fat burner might give you some support.

Manage Your Expectations

It’s generally understood that a pound of fat loss per week is very fast, and you can maybe get to two pounds if you’re quite overweight or obese. Anyone who says they lost 20 pounds in a month is exaggerating — you need to be patient.

Exercise Regularly

Many of the ingredients linked to fat oxidation produce their best results with a solid exercise routine: they’re meant to increase the amount of fat burned during exercise. In addition, exercise helps to burn more calories and improve body composition. Taking a fat burner without a workout routine may produce suboptimal results.

Speak to a Physician

This is absolutely key. It would be best if you never made any changes to your diet or exercise regimen without first speaking to a doctor. This is especially the case with easily misunderstood supplements like fat burners.

Wrapping Up

As you can see, there are many things to keep in mind when choosing the best non-stim fat burner, even when you’re trying to uncomplicate the ingredients list by removing caffeine. The right product totally depends on your own preferences, but we’ve found many like those that operate on multiple fronts: appetite, fat oxidation, and increased thermogenesis. Whatever your preference, there’s likely an option for you on this list.

References

  1. Godard MP, et al. Body composition and hormonal adaptations associated with forskolin consumption in overweight and obese men. Obes Res. 2005 Aug;13(8):1335-43.
  2. Greenway FL, et al. Regional fat loss from the thigh in obese women after adrenergic modulation. Clin Ther. 1987;9(6):663-9.
  3. Stohs SJ, et al. Effects of p-synephrine alone and in combination with selected bioflavonoids on resting metabolism, blood pressure, heart rate, and self-reported mood changes. Int J Med Sci. 2011 Apr 28;8(4):295-301.
  4. Woo, M et al. Anti-obese property of fucoxanthin is partly mediated by altering lipid-regulating enzymes and uncoupling proteins of visceral adipose tissue in mice. Mol Nutr Food Res . 2009 Dec;53(12):1603-11.
  5. Stephens, FB et al. New insights concerning the role of carnitine in the regulation of fuel metabolism in skeletal muscle. J Physiol . 2007 Jun 1;581(Pt 2):431-44.
  6. Walsh DE, et al. Effect of glucomannan on obese patients: a clinical study. Int J Obes. 1984;8(4):289-93.
  7. Nogara L, et al. Piperine’s mitigation of obesity and diabetes can be explained by its up-regulation of the metabolic rate of resting muscle. Proc Natl Acad Sci U S A. 2016 Nov 15;113(46):13009-13014.