Allmax Nutrition Liquid L-Carnitine. Allmax Nutrition MCT Oil. ANS Performance KETOSYS - Peanut Butter Chocolate. ANS Performance KETOSYS Natural. ANS Performance MCT Oil Powder. ATP Labs Cellulex. Beyond Yourself Keto-Ice.

Bio-X L-Carnitine Liquid - Blue Raspberry. Cellucor Cor-Performance CLA. FitMiss Z-Slim PM. Magnum ACID. MusclePharm Carnitine. MusclePharm CLA Essentials. Mutant Core Series Carnitine - Fruit Punch. Mutant Core Series Carnitine - Orange. NOW Chromium Picolinate.

NOW Garcinia mg. Precision Extreme CLA-GTX. Precision ISO-CLA. PVL CLA PVL Liquid L-Carnitine. Sculpt Absteel. Sculpt Celluless. Steelfit Abs Of Steel. Speak with your physician before undertaking any new weight loss regimen.

Finding an effective fat burner with zero stimulants can be tricky. This formula has a variety of ingredients with zero fillers or dyes, including mg of green tea extract, which can help promote weight loss, according to the Cleveland Clinic.

Each two-capsule serving also provides a solid dose of mg of l-theanine, which can help reduce stress and improve sleep quality, per the Cleveland Clinic. Paired with five milligrams of melatonin and mg of magnesium — two ingredients that may help promote good sleep, according to the National Sleep Foundation — this non-stim fat burner is ideal before bed.

You also get 10mg of vitamin B6, which helps promote a healthy immune system and nervous system, according to the Mayo Clinic. Plus, the five milligrams of black pepper extract in Lean-PM may help you absorb the other components more efficiently, per the Cleveland Clinic.

Jacked Factory takes a multi-pronged approach to burning fat with Lean-PM. Together, these ingredients potentially promote weight loss while encouraging good rest. This product uses science-backed doses of cayenne, 5-HTP, and Coleus Forskolin to aid fat loss without the use of jitter-inducing supplements.

Losing muscle can be the scariest part of trying to get leaner. Transparent Labs has two different fat burners, one of which has stimulants. This non-stim fat burner is high in ingredients that could help with retaining hard-earned muscle mass — especially the Capismax that can provide an energy boost in the gym, which is useful for bodybuilders on a cut.

Capsimax may also help increase thermogenesis, as can the green tea leaf extract, in this formula. The forskolin included here can help free the fatty cells from tissues, making them more available to be used as energy sources, which can also help bodybuilders push out more reps in the gym or burn off more calories on the stair stepper.

Plus, the bioperine here can help your body absorb more of these ingredients, leaving less to turn into waste material. Keeping your workouts going during a calorie deficit can be hard for bodybuilders. Read our full Transparent Labs Stim-Free Fat Burner Review.

Legion's Phoenix comes with an extra absorbable form of synephrine and a high dosage of EGCG to promote its fat-burning properties. Each five-capsule serving provides milligrams of Citrus Aurantium. This fat burner from Legion is about as good as it gets when looking for a product that is supported by the literature.

The combination of ingredients is supported by 26 peer-reviewed studies and features seven ingredients with clinically effective doses. There are ingredients meant to reduce appetite like caralluma fimbriata 1,mg and 5-HTP mg.

If you want to read the research, Legion has it readily available on their website. Its seven clinically dosed ingredients are supported by 26 peer-reviewed studies and priced well to boot. When burning calories is your priority, consider a thermogenic supplement.

Thermogenic fat burners can help increase your body temperature to help you potentially burn more calories. In this formula, you get mg of green tea extract, an ingredient that may have thermogenic properties. Jacked Factory offers a thermogenic fat-burning product that contains a stacked list of ingredients that may help you reach your goals by potentially promoting thermogenesis.

The added black pepper extract can help this product absorb better, as well. 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. For those who prefer to take their fat burner as a pre-workout in hopes of boosting your intra-workout fat burn, this may be the product for you.

For those looking for a non-stim fat burner combined with their pre-workout , this product is your answer. In addition to traditional pre-workout ingredients like 6,mg of citrulline malate , 4,mg of BCAAs , and 4,mg of beta-alanine , this pre-workout contains mg of choline bitartrate, which can can help play a role in the metabolism of fat.

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. While it may seem more expensive upfront, it can knock out two supplements in one go, which may actually end up costing you less in the long run.

Read our full Transparent Labs Stim-Free Pre-Workout Review. Hourglass Fit, although stim-free, contains an all natural formula, which may be helpful for women who want to burn fat.

It also has a ton of glowing reviews and testimonials, which might boost your confidence in its efficacy. Research suggests that around 50 percent of women crave chocolate during the onset of their menstrual cycle, and Hourglass Fit includes 3,mg of glucomannan, which may help curb these cravings.

We should note that each serving requires you to take four capsules, which some people may not like. For women trying to lose a significant amount of weight, chromium and vitamin B6 may be beneficial ingredients to help you shed extra body weight. Appetite can be a huge barricade when it comes to hitting your fat loss goals.

With movement and calories burned correlating to how hungry you become, it can be a difficult balance to be burning the right amount of calories for fat loss while also making sure you are satiated.

Leanbean has a dozen ingredients, but it has a strong focus on what might be the most important aspect of weight loss: your appetite. A big part of the appeal is glucomannan, a thickener made from the root of the konjac plant that research suggests can suppress appetite.

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.

Read our full Leanbean Review. Legion's Phoenix is made completely of all-natural ingredients and herbs, which is unlike most other fat burner products. You can also buy this in a caffeine-free version.

Legion Phoenix Stimulant-Free Fat Burner has a strong ingredient list to potentially help you burn fat while curbing your appetite and cravings — but it also includes ingredients that may aid in your sleep and impact your memory of your dreams.

Legion Phoenix Stimulant-Free Fat Burner has a stacked list of ingredients that may help you sleep, as well as aid you in your weight-loss journey.

Among the list of ingredients is Caralluma Fimbriata extract CFE , which has been shown to reduce stress and anxiety in adults.

Another study found that there is a statistically significant relationship between high stress and poor sleep, meaning it can be extremely helpful to lower stress levels to improve sleep quality.

On the fat-burning side, the mg of Thai ginseng, 50mg of forskolin, and 30mg of grains of paradise can help ramp up your metabolism. This formula contains 5-HTP, as well as CFE, which may lead to lowered stress levels and potentially improved sleep.

Cravings are one of the forefront issues when it comes to fat loss. This formula contains natural appetite suppressants, which can lead to a decrease in cravings, as well.

Most fat burners include ingredients that boost metabolism, but the best ones can also help keep you from overeating in the first place. Leanbean nails both with its 3,mg dose of glucomannan, which can act as a natural appetite suppressant thereby helping to reduce your cravings , and choline, which can help with fat metabolism.

We like Leanbean for its wide variety of fat-burning and appetite-suppressing ingredients. While there are many potential benefits to supplementing with a fat burner, non-stim fat burners offer their own unique benefits. When you opt for a stim-free fat burner, you choose to forego the caffeine or stimulants that are often utilized as fat-burning ingredients.

Thermogenesis is the process of heat generation in the body, which may help burn more calories through increased heat. A thermogenic aid may increase thermogenesis, and therefore, potentially increase calories burned. This includes energy expenditure from ingesting, digesting, and processing the food we eat.

Fat oxidation is the process that breaks down fat stores in the body triglycerides that we accumulate from taking in excess fat that we do not burn throughout the day in our daily activities. In order for the body to target fat oxidation over other types of energy releases, you may have to work out at higher intensities — specifically, endurance training that lasts less than two hours can help facilitate fat oxidation.

Some fat burners have the potential to increase metabolic processes and in their wake, help you burn more calories.