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Fat Burner

Muscle-sparing fat loss support for exercise and fasted training*

Fat Burner

Designed for Performance

Stimulates fat-splitting enzymes and fat-burning hormones*

Increases energy expenditure for peak calorie-burning during exercise*

Optimizes hormones that drive metabolism and muscle growth*

Helps regulate blood sugar, appetite and fat storage*

Preserves lean muscle mass during fasted and non-fasted training*

Helps burn more fat than exercise alone*

Healthy for Daily Use

Designed to control weight in conjunction with diet and exercise*

Stim-free thermogenesis; made to minimize typical burner side effects*

Advanced nutrient forms Forslean®, Capsimax®, BioPerine®*

Plant-based, prebiotic-infused Plantcaps® from pullulan (fermented tapioca)*

View Supplement Facts
100% Natural
Synthetic Additive


HMB (ß-Hydroxy ß-Methylbutyrate),
1000 mg

Training in a fasted state has been suggested to accelerate both the breakdown and metabolism of stored fat. The downside: Fasted training may also degrade lean muscle mass.

Beta-hydroxy beta-methylbutyrate (HMB) is a metabolite of the branched-chain amino acid leucine that is Performance Lab® Sport Fat Burner’s featured nutrient for optimizing fasted training results. HMB is suggested to help by:

  1. Neutralizing muscle-damaging enzymes that are generated during fasted training;
  2. Enhancing muscle strength and maximal oxygen consumption while delaying lactic acid onset, helping to optimize physical performance and endurance in a fasted state;
  3. Promoting muscle growth by directly increasing protein synthesis within the mTOR pathway;
  4. Encouraging the body to preferentially use stored fat as fuel instead of muscle tissue during calorie restriction.

HMB naturally supplies a balanced combination of muscle-sparing, muscle-building and muscle recovery bioactivities that may support lean muscle mass in conjunction with training, especially high-intensity interval training and cardiovascular exercise on a calorie deficit.

Research has linked HMB supplementation with lower levels of 3-MH, which is a marker of enzyme-induced protein degradation:

HMB (ß-Hydroxy ß-Methylbutyrate)
HMB purity

About Performance Lab® Sport Fat Burner HMB:

Our HMB (ß-Hydroxy ß-Methylbutyrate) is sourced from a leading global supplier and undergoes rigorous quality testing to verify purity and potency for superior HMB muscle benefits.

Coleus Forskohlii (as Forslean®) (standardized for min. 10% forskolin),,
250 mg

Coleus Forskohlii is an Ayurvedic root herb that is the only natural source of its primary active ingredient: Forskolin.

Forskolin activates the adenylate cyclase enzyme that increases production and intracellular concentration of cyclic adenosine monophosphate (cAMP), a signaling compound that may help to promote desirable body composition by:

  1. Optimizing hormonal cell messengers that regulate metabolism, thermogenesis and anabolic muscle growth, including thyroid hormone and testosterone;
  2. Activating the enzyme protein kinase, which stimulates lipase to catalyze the breakdown of triglycerides: The building blocks of body fat.
Mechanism of action of Forslean

Coleus Forskohlii’s synergistic, multi-pathway activity is suggested to help minimize body fat while maximizing lean muscle growth – supporting optimal body composition and the peak metabolic function that helps maintain a healthy weight.

Coleus Forskohlii

About Forslean®

Forslean® is an advanced form of Coleus Forskohlii standardized to supply a minimum of 10% active forskolin. Forslean® is patented for shifting body composition away from fat and in favor of lean muscle, and has been shown to be safe, well-tolerated and effective in multiple clinical trials.

Researchers have linked supplementation with the Forslean® used in Performance Lab® Sport Fat Burner with significant reductions in bodyweight and significant increases in lean body mass:

Cayenne Pepper Extract (as Capsimax®) (standardized for min. 2% capsaicinoids),
50 mg

Cayenne pepper supplies active ingredients called capsaicinoids that are responsible for the pepper’s fat-burning effects. Among other bioactivities, capsaicinoids activate the sympathetic nervous system to release catecholamine hormones (epinephrine and norepinephrine) from the adrenals.

In Performance Lab® Sport Fat Burner, cayenne’s pro-catecholamine activity may assist with healthy weight management because catecholamines have been shown to:

  1. Stimulate beta adrenergic receptors that signal for cells to increase energy expenditure, helping to maximize calorie-burning during exercise;
  2. Signal for hormone sensitive lipase to promote fat breakdown (lipolysis), fat mobilization and fat oxidation before and after exercise

Cayenne peppers’ capsaicin is also notable because its metabolic effects are achieved without stimulants or related side effects, such as increased heart rate and blood pressure.

Cayenne Pepper Extract (as Capsimax®)

About Capsimax®:

A highly active extract standardized to 2% capsaicinoids, Capsimax® supplies chili peppers’ active ingredients for weight control in buffered OmniBead™ microspheres, which delay release of cayenne’s nutrition for absorption in the lower intestine – a step that eliminates the oral and gastric burning sensations that are sometimes associated with hot peppers.

Creatine (Creapure® pH10)

Catecholamine + cAMP Synergy for Lipolysis:

Catecholamine-induced lipolysis appears to be more pronounced in visceral fat, in part due to the lipolytic activity of cAMP. Together in Performance Lab® Sport Fat Burner, Cayenne’s pro-catecholamine activity and Coleus Forskohlii’s pro-cAMP activity are intended to combine for superior lipolysis performance in visceral fat tissues.

Black Pepper Extract (as BioPerine®)(Standardized for min. 95% piperine),
2.5 mg

Black pepper extract supplies an active ingredient called piperine. Considered a thermonutrient, piperine is suggested to assist with weight control by:

  1. Optimizing thermogenesis, thereby increasing energy expenditure;
  2. Promoting efficient food metabolism, including enhancement of nutrient absorption;
  3. Inhibiting adipogenesis, the formation of new fat cells.
Cayenne Pepper Extract (as Capsimax®)

About BioPerine®

Performance Lab® Sport Fat Burner’s BioPerine® black pepper extract is a premium form standardized to supply a minimum of 95% piperine. Raw black pepper supplies between 3-9% piperine. BioPerine® is the only form of black pepper that is patented to increase the absorption, bioavailability and utilization of nutritional compounds, as well as the only form shown to be safe and effective in multiple clinical trials.

Upgrade Yourself®

Take Performance Lab® Sport Fat Burner to burn more fat than with exercise alone, especially during fasted training.

Fat Burner

Stack Performance Lab®
SPORT Fat Burner With:


Burn + Stim

SPORT Burn is a stim-free supplement. For those who prefer stimulation, SPORT Burn stacks perfectly with Performance Lab® Stim.

Stim adds performance-enhanced caffeine to SPORT Burn in 50 mg increments, giving you more precise control over intake.

Add Stim to SPORT Burn to get caffeine’s thermogenic and energizing weight loss benefits.

Learn More

Burn + Energy

Energy’s cell ATP energy support complements SPORT Burn’s Forslean®, which works together with ATP to enhance metabolism.

Energy also adds 2.5 mg BioPerine® to SPORT Burn’s 2.5 mg, doubling its research-backed thermogenic and metabolic support.

Take SPORT Burn + Energy for vitalized performance during exercise and superior fat loss results.

Learn More

Burn + MCT

Performance Lab® MCT targets fat loss pathways that augment SPORT Burn, including support for appetite control and calorie intake reduction.

Like SPORT Burn, MCT also holds specific benefits for fasted training: It raises ketone bodies that fuel brain cells during fasting.

Together, SPORT Burn + MCT help all fat loss programs, with specialized support for maintaining muscle mass and mental energy during keto and fasted training.

Learn More

Burn + Pre

SPORT Burn Capsimax® from cayenne peppers is a thermogenic nitric oxide (NO) booster. It augments SPORT Pre’s NO-boosting Setria® Performance Blend and Maritime Pine Bark Extract.

Take SPORT Burn + SPORT Pre for a muscle-pumping, muscle-preserving, fat-blasting sensory workout that shreds and defines your body without stimulants.

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Burn + Protein

SPORT Protein featuring Oryzatein® organic rice protein mixes easily into a rich chocolate shake that helps with appetite control across all weight loss programs.

In conjunction with exercise, SPORT Protein also helps pack on lean muscle mass that is preserved during fasted training by SPORT Burn’s HMB.

Take SPORT Burn + SPORT Protein as the ultimate fat-burning, muscle-building stack.

Learn More


Who should take Performance Lab® Fat Burner?

Performance Lab® Sport Fat Burner supports all weight control programs that include healthy diet and regular exercise. Performance Lab® Sport Fat Burner is customized, however, to optimize the fat-loss and muscle-gain results of fasted training.

What is fasted training? †

Fasted training refers to training on an empty stomach. Some research suggests that while in a fasted state, the body burns more fat during exercise. Fasted training has also been suggested to preferentially promote lipolysis in areas of stubborn visceral fat, such as around the abdomen in men and hips and posterior in women. These fat loss benefits may be attributed to fasting’s impact on insulin levels.

When food is consumed, blood sugar (glucose) rises. Insulin is released from the pancreas to manage this blood sugar, helping to convert it for immediate energy and store it (as glycogen) in muscles, fat and the liver as energy for later use. As part of these post-meal functions, insulin increases fat formation of fat while “turning off” lipolysis (fat breakdown).

After food is digested, the body enters a post-absorption state: Blood sugar and insulin levels both return to baseline because the stomach is empty. Exercising in this fasted state creates high energy demands, but the body has no glucose to use as fuel. Instead, during fasting the body burns through its glycogen stores – including visceral fat – to produce energy.

Possible drawbacks of fasted training include a reduction in exercise intensity and increased susceptibility to muscle and protein degradation. Performance Lab® Sport Fat Burner is designed to optimize fasted training results while minimizing these potential fasted training drawbacks.

Fasted training should only be done under the close supervision of a healthcare professional.

How do I take Performance Lab® Fat Burner?

For best results take 2-4 capsules 15 minutes prior to training.

How should I take other Performance Lab® supplements during fasted training?

Performance Lab® Sport Pre-Workout and Performance Lab® Energy stack well with Sport Fat Burner, and may be taken 45-60 minutes prior to training. If training fasted, Performance Lab® Sport BCAA should be taken intra-workout or post-workout only, to avoid breaking your fast. Other Performance Lab® supplements should be taken post-workout to best optimize the fat loss benefits of fasted training.

Is Performance Lab® Sport Fat Burner safe?

Like other Performance Lab® supplements, Performance Lab® Sport Fat Burner is designed to be safe for long-term daily use, without the need for cycling. Performance Lab® Sport Fat Burner achieves this by using pure, potent ingredients that are dosed appropriately and in line with clinical research. Performance Lab® Sport Fat Burner’s clean formula design – free of GMOs, gluten, soy, colorants, preservatives and other additives – is also well-tolerated by the body, and safe for long-term use. Performance Lab® Sport Fat Burner avoids the use of caffeine and stimulants, further strengthening its safety and tolerability profile.

Why is there no caffeine in Performance Lab® Sport Fat Burner?

Some fat burner supplements supply caffeine and other stimulants, which may promote weight loss but may also be accompanied by side effects related to blood pressure and heart rate. Performance Lab® Sport Fat Burner is stimulant-free by design. Instead of caffeine, Performance Lab® Sport Fat Burner enhances metabolic performance via non-stimulatory pathways. Performance Lab® Sport Fat Burner is formulated to promote fat burning in a way that is safe and well-tolerated.



Alon T, Bagchi D, Preuss HG. Supplementing with beta-hydroxy-beta-methylbutyrate (HMB) to build and maintain muscle mass: a review . Res Commun Mol Pathol Pharmacol. 2002;111(1-4):139-51.
Portal S, Eliakim A, Nemet D, Halevy O, Zadik Z. Effect of HMB supplementation on body composition, fitness, hormonal profile and muscle damage indices . J Pediatr Endocrinol Metab. 2010 Jul;23(7):641-50.
Zanchi NE, HMB supplementation: clinical and athletic performance-related effects and mechanisms of action . Amino Acids. 2011 Apr;40(4):1015-25. doi: 10.1007/s00726-010-0678-0. Epub 2010 Jul 6.
Nissen S, et al. Effect of leucine metabolite β-hydroxy-β-methylbutyrate on muscle metabolism during resistance-exercise training . Journal of Applied Physiology Published 1 November 1996 Vol. 81 no. 5, 2095-2104
Gallagher PM et al. Beta-hydroxy-beta-methylbutyrate ingestion, Part I: effects on strength and fat free mass . Med Sci Sports Exerc. 2000 Dec;32(12):2109-15.


Kavila C, et al. Coleus forskohlii: A comprehensive review on morphology, phytochemistry and pharmacological aspects . Journal of Medicinal Plants Research, Vol. 4(4) pp. 278-285, 18 February, 2010

Cayenne Pepper

Lejeune MP, Kovacs EM, Westerterp-Plantenga MS. Effect of capsaicin on substrate oxidation and weight maintenance after modest body-weight loss in human subjects . Br J Nutr. 2003 Sep;90(3):651-59.
Yoshioka M, Effects of Red-Pepper Diet on the Energy Metabolism in Men . J. Nutr. Sci. Vitaminol., 41, 647-656, 1995
Lejeune M. Effect of capsaicin on substrate oxidation and weight maintenance after modest body-weight loss in human subjects . British Journal of Nutrition. Volume 90, Issue 3. September 2003, pp. 651-659
Arner P. Catecholamine-induced lipolysis in obesity . Int J Obes Relat Metab Disord. 1999 Feb;23 Suppl 1:10-3.

Black Pepper

Ravindran PM. Black Pepper: Pepper Nigrum . Indian Institute of Spices Research. 2005.
Okumura Y, Narukawa M, Watanabe T. Adiposity suppression effect in mice due to black pepper and its main pungent component, piperine . Biosci Biotechnol Biochem. 2010;74(8):1545-9
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* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

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