Fat burners are dietary supplements often accompanied by miraculous claims of thin bellies and sculpted physiques. More accurately, rather than magically melting fat away, the ingredients in these supplements are designed to enhance a number of your body’s natural functions. Some targeted functions include increasing metabolism, burning calories, suppressing appetite, and reducing the amount of fat your gut absorbs (1).

As a billion-dollar industry, the hope would be for these fat burners produce the results they advertise. Unfortunately, it’s difficult to know the effectiveness of supplements as they are not regulated by the Food and Drug Administration (FDA). Additionally, some fat burners contain ingredients with potentially harmful side effects, making it important to research a product before taking it. 

One product with some big claims is Burn Lab Pro. Advertising itself as “the world’s most advanced fat loss support,” we’ll look into their formula and see how the ingredients support their guarantees.  

What is Burn Lab Pro?

Burn Lab Pro is a vegan fat-burning supplement designed to help you shed excess weight while still being able to build and retain muscle. It is produced by Opti-Nutra, a company that prides itself on setting the standard for supplements that “optimize biological function and elevate healthy,” (2). 

Using only 5 active ingredients, Burn Lab Pro boasts of a clean and effective formula with the top fat-burning elements you need, without the fillers you don’t.

Burn Lab Pro recommends their product to people who already engage in a fitness-driven, fat loss program as this will improve results. Examples of such programs include keto/low carb, fasted cardio/intermittent fasting, calorie restriction, body recomposition, and more.

Benefits of Burn Lab Pro

The official website shares an extensive list of 15+ benefits broken down into 3 main categories:

Lose Fat: Burn Lab Pro uses ingredients to fight fat on multiple fronts. Forskolin encourages your body to use its current fat stores as energy, reducing the size of fat cells. GTF Chromium prevents the formation of new fat cells by helping your body use its fuel as energy. Finally, powerhouse ingredients Cayenne and Black Pepper give you that feeling of being full, work to suppress appetite and cravings while also delivering a multitude of overall health benefits. 

Retain Muscle: While it can be difficult to retain muscle during periods of weight loss, Burn Lab Pro helps make this possible. GTF Chromium supports your muscles by bringing them fuel, so they have the energy needed to push through tough workouts. HMB reduces damage commonly made of proteins during exercise, allowing your cells to heal and lean muscles to form.

Enhance Exercise: When muscle mass is improved, your body continually grows in its ability to sustain intense exercise. Not only that, but with ingredients that maximize your diet and workout routine, Burn Lab Pro is likely to show results quicker than you’d see on your own. Seeing results can in turn motivate you to keep pursuing your weight loss goals.

Ingredient List

Opti-Nutra formulates its own versions of highly effective, uniquely named, patented ingredients. Those names can be found on the product but for clarity purposes, ingredients will be referred to by their common names below.

  • GTF Chromium (90 mcg): Glucose tolerance factor (GTF) Chromium is a naturally occurring and easily absorbed form of Chromium used to enhance the activity of insulin (3). Insulin’s role is to move glucose (fuel the body receives from food) from the bloodstream into cells where it can be used. It is this process that reduces hunger, repairs muscle, and gives the body energy. Without chromium, insulin would not be able to move glucose into cells and that fuel would be left in the bloodstream to be stored as fat (4). 

  • Beta-Hydroxy Beta-Methylbutyrate – HMB (1500 mg): HMB is a substance produced naturally in the body during the breakdown of Leucine (an amino acid). HMB functions as an anti-catabolic agent during exercise, meaning it minimizes damage to cells and protein (5) resulting in the formation of lean muscle (6). Research indicates that supplementing your diet with HMB can improve both muscle strength and ability (7). 

  • Coleus Forskohlii (375 mg): Coleus Forskohlii, commonly known as Forskolin, is a plant supplement that has been used for centuries in Ayurvedic medicine to support overall wellness. It is thought that Forskolin supports weight loss by creating enzymes that release fatty acids from cells in the body. Once these fatty acids have been freed, they can be burned for energy. It is important to note that this process only works in a calorie deficit environment—otherwise the body will use excess calories as energy rather than current fat cells (8).

  • Cayenne Pepper Extract (75 mg): Cayenne Pepper is a natural, spicy herb loaded with health benefits that promote weight loss. Its thermogenic (heat-producing) properties are believed to speed up metabolism and burn calories. Studies also show that consuming Cayenne Pepper can suppress appetite by inducing feelings of fullness and reducing cravings. In addition, the pepper’s main active ingredient, capsaicin, has been known to have anti-inflammatory properties (9).

  • Black Pepper Extract (3.75 mg): Black Pepper Extract has a variety of health benefits ranging from improved brain function in digestive health to weight management. Some studies suggest that the spice may improve blood sugar control, lower cholesterol, and reduce appetite. On top of this, Black Pepper boosts the absorption properties of other nutrients meaning you get more out of the supplements and foods you already consume (10).

Pros & Cons


  • Clinically tested ingredients
  • 100% natural, non-GMO, and vegan friendly
  • Allergen-free
  • Caffeine-free


  • Clinical research presents mixed reviews for some ingredients
  • Many ingredients have interactions with prescription medications

Potential Side Effects

Burn Lab Pro has been thoroughly tested to ensure its ingredients and doses are safe for adult consumers. Additionally, Burn Lab Pro is free of soy, gluten, and other common allergens. There are no known side effects from taking the supplement, however, some ingredients may interact poorly with certain medications. 

If you have a health condition or take any medications, it is important to consult your physician prior to use. 

How to Use

Burn Lab Pro is easily incorporated into your diet and exercise regimen; simply take 3 capsules 15-30 minutes before a workout. While a recommended serving is 3 capsules, the official website indicates that you can take 2-4 capsules depending on your specific needs. 

A single bottle contains 90 capsules (30 recommended servings) which will last you between 22 and 45 days given the amount you choose to take per day.

Prices & Offers

A bottle of Burn Lab Pro can be purchased individually for $59.00 on the official website. If you choose to order in bulk, there is an option to buy 4 boxes for the price of 3 making each bottle $44.25.

Burn Lab Pro offers a 30-day risk free trial on your first order. If you reach the end of the month and aren’t seeing results, you can receive a full refund, guaranteed.


After looking at the research behind Burn Lab Pro’s formula, it appears to be an effective product for reducing fat and retaining muscle. While studies suggest the ingredients may not work for everyone, Burn Lab Pro has many impressive reviews from its users that cannot be ignored. Remember, if you take any medications, check with your doctor prior to use as GTF Chromium, Forskolin, and Black Pepper Extract can interact poorly with certain medications and medical conditions. 

About the Author

Steven has been into health, nutrition, and fitness for over 10 years, and has a degree in Physical Education and Coaching. He is an expert in supplements and is devoted to helping his clients achieve their fitness goals and live their best lives.

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