Burn XT Black Review – Thermogenic Fat Burner from Jacked Factory

Thermogenic fat burners are commonplace. They are suitable for both men and women who need a fat burning supplement. Burn XT Black is typical of the genre. Read the review to find out how it works, what the ingredients are and whether it causes side effects.

Burn XT Black review

What does it do: Burn XT Black can aid fat loss, burn calories, suppress appetite and reduce food cravings and also provide an energy boost.

Pros: Contains some good ingredients, respected manufacturer and reasonably well priced.

Cons: Ingredient profile could be better, not as strong as some other fat burners that are similar.

Recommended Alternative: We suggest looking closely at PhenQ – a natural fat burner and hunger reducer – it is currently the market leader according to industry critics.

Burn XT Black Review

Burn XT Black is a thermogenic fat burner made in the USA by Jacked Factory. The company describes the supplement as the “evolution” of a previous product, simply called Burn XT.

Burn XT Black

Burn XT Black does not replace Burn XT. The company is still selling the earlier product as well. That’s possibly a little strange if the formulation has allegedly evolved but, hey! That’s just the way it goes.

So, what’s the difference between Burn XT and Burn XT Black? It has a few additional ingredients.

The original product had five key ingredients. Burn XT Black has the same ingredients, included in the same quantities.

Then it has four more ingredients as well. Three of them are stimulants. The original formulation was already high in stimulants. Lots of customers report side effects. Not surprisingly, the Black version has plenty of reports of side effects too.

Most of the positive reviews appear to come from regular gym-goers who appreciate the extra energy. It’s probable many of them may have built up a high tolerance to stimulants due to many years of supplement use.

Promised Benefits

  • Suppresses appetite
  • Increases energy
  • Burns body fat
  • Preserve muscle
  • Highly effective for men and women

Burn XT Black – First Impressions

Burn XT Black contains a couple of good thermogenic fat burners – Capsimax and green tea. The inclusion rates are good too. That’s excellent. This formulation will be capable of helping people to burn extra fat.

Nevertheless, we have to question the wisdom of including extra stimulants. Their presence will make Burn XT Black too “hardcore” for many people to use.

We also have doubts about the claim that the formulation will protect existing muscle mass. It provides a source of L-carnitine, which does have this ability, but in this formulation, it’s acting alone. There are alternative ingredients, that have better credentials when it comes to preventing loss of muscle.

This review would be incomplete if we did not mention the lack of appetite suppressants. Burn XT Black is a thermogenic fat burner and energy provider first and foremost.

Capsimax reduces appetite. Stimulants can help a little too but, without any glucomannan or nopal, this formulation is not going to offer the strong hunger control the average dieter is likely to need.

Again, we must point out, this supplement is a better option for people who want to burn extra fat while they train.

In fact, it’s probably best for hard-training men, not women. High doses of caffeine can interfere with female hormones. By doing this, it has the potential to contribute to weight gain.

Burn XT Black Ingredient Profile

  • Acetyl-L-Carnitine (700 mg)
  • Green Tea Extract (450 mg)
  • Caffeine Anhydrous (270 mg)
  • TeaCrine (100 mg)
  • Theobromine (100 mg)
  • Capsimax (50 mg)
  • Theanine (50 mg)
  • Infinergy (50 mg)
  • Bioperine (5 mg)

Burn XT Black Ingredient Value


Acetyl-L-Carnitine provides the amino acid L-carnitine. It’s a common addition to sports supplements because it helps you to train harder by pulling extra energy into the cells.

L-carnitine is also a common inclusion in bodybuilding supplements. Its presence speeds up post-training recovery rates and lessens the likelihood of muscle degradation.  https://www.ncbi.nlm.nih.gov/pubmed/12930169

Green Tea Extract

Green tea is one of the top natural fat-burning ingredients. Although it contains a little caffeine (a proven fat burner), research shows green tea’s ability to support fat loss is mainly attributable to the catechins it provides. https://academic.oup.com/ajcn/article/70/6/1040/4729179

Green tea catechins support fat loss by increasing metabolism. They also cause your body to lose extra heat via thermogenesis. By doing these things, the catechins work alongside your low-calorie diet and help you to increase the energy shortage that causes your body to burn fat.

Caffeine Anhydrous

Although some people cannot tolerate it at all – even in low doses – caffeine is a very useful supplement ingredient. The problem is it’s so often abused. Reasonable doses of 100-150 mg are generally beneficial for most people.

Such a dose can boost energy and help guard against diet-related fatigue. It can also aid fat loss by increasing metabolism and thermogenesis.

Higher doses of caffeine don’t necessarily mean greater benefits but do increase the risk of side effects.

However, in time, your body can adjust to higher doses of caffeine and similar stimulants. When this happens, you are less likely to suffer side effects. The problem is, the benefits decrease as well.

Once you begin becoming overly reliant on caffeine, it’s a slippery slope. To get the benefits you used to enjoy, you have to keep increasing the dose, and doing so places a strain on your adrenal gland.

Burn XT Black provides 270 mg of caffeine in a form the body absorbs quite rapidly. Much faster than it could the caffeine in a cup of coffee and 270 mg is the equivalent of 3-4 espressos. Would you feel comfortable drinking that many shots back to back?


TeaCrine is another stimulant. It’s not in the original formulation but it is in Burn XT Black.

TeaCrine is a brand of theacrine. It’s not a particularly popular ingredient but some manufacturers use it instead of caffeine because it’s believed to be capable of providing similar benefits with a lesser chance of side effects.

However, Jacked Factory isn’t using TeaCrine in place of caffeine, it’s using it beside it and the dose is pretty high.

There are good arguments for using TeaCrine as a caffeine substitute, but using it alongside the 270 mg of caffeine Burn XT Black provides could be seen as unwise.


Theobromine is a stimulant that comes from cocoa. It’s not as powerful as caffeine but adding it here is still a questionable decision.

In addition to being a stimulant, theobromine can also bring about favorable changes in mood.


Capsimax is a patented capsicum extract. It’s better than standard options because it’s easier on the stomach and less likely to cause heartburn.

Capsicum provides capsaicin. Research shows this compound, which gives the pepper its heat, can support fat loss by suppressing hunger and increasing energy expenditure. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5426284/


Theanine (L-theanine) is an amino acid that works well alongside caffeine and has the potential to reduce the chances of ill effects. It’s a worthy inclusion but it’s going to have its work cut out for it here.


Infinergy is a patented blend of caffeine and malic acid. In case you haven’t guessed, it’s another stimulant. The ingredient is designed to be a safe alternative to Ephedra (banned ingredient), but it never really caught on.


Bioperine is a patented black pepper extract. It’s standardized to be 95% piperine. Standard extracts are less than 10%.

Black pepper extracts are present in many supplement formulations because piperine enhances your body’s ability to absorb other ingredients.

Burn XT Black Usage Guidelines

Jacked Factory suggests new users begin by taking only one capsule per day and sticking to this dose for three days. Doing so will highlight any tolerance issues.

The regular dose is three capsules per day, all in a single dose when you wake up in the morning.

People who wish to do so can also take a further three capsules five to six hours later. However, doing so will make this fat burner doubly expensive to use.

Burn XT Black Customer Reviews

Customer reviews are a mix of good and bad.

The positive reviews often mention increases in energy. Some of them mention reductions in weight too.

Many of the negative reviews refer to side effects, but a few are based on quality issues, such as bottles arriving with broken seals.

A minority of reviewers simply say Burn XT Black did nothing for them at all.

A few positive reviews

A few negative reviews

Burn XT Black Side Effects

Customers reviews mention a diverse range of side effects:

  • Nausea/vomiting
  • Chest pain
  • Stomach cramps
  • Anxiety
  • Feeling faint
  • Headaches
  • Insomnia
  • Increased appetite
  • Fatigue
  • Jitters
  • Dizziness
  • Mood swings

Due to the stimulant-rich nature of the product and all the reports of side effects, we suggest not using Burn XT Black without discussing the matter with a doctor first.

Burn XT Black Purchasing Options and Considerations

You can buy Burn XT Black from the Jacked Factory website. If you do, expect to pay around $40 per bottle.

That’s a little cheaper than most of the top-rated fat burners but Jacked Factory hits you with an extra shipping charge. The companies behind all the top fat-burning products do not. They also offer special deals when you place larger orders. Jacked factory does not do this so it’s hardly competitively priced.

If you take two doses of Burn XT Black per day instead of one, the product becomes even more expensive to use because each bottle will only last 15 days instead of a month.

Jacked Factory also distributes Burn XT Black via Amazon. However, at the time of this review, the product was out of stock, so we are unable to provide an indication of any possible differences in price.

Burn XT Black Guarantee

Jacked Factory offers a 90-day money-back guarantee.

Burn XT Black: The Conclusion

Burn XT Black is a product that may be beneficial to some people but not to others. It also has the potential to cause some very nasty side effects.

If your primary aim is weight loss, not training, Burn XT Black is a poor option to choose.

It may be a supplement that fits your needs if you are used to high doses of stimulants. However, if you are a hardened stimulant user, you may be one of the people who end up complaining you noticed no differences at all.

Similar Diet Pills to Burn XT Black

  • PhenGold – natural phentermine alternative that can help burn fat and suppress appetite. It reduces food cravings.
  • Genius Burn – a natural weight loss supplement combined with a nootropic.
  • Burn + Balance – female weight management pill that can balance hormones and improve skin complexion.

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about the author

Henry Washington BSc, BSc, MA, PhD. Fascinated with the study of human behavior, and how this affects our day-to-day lives. Has read more books on the subject than he can count and has an extensive collection of academic papers to match. Published in the following journals: Nature, Journal of Cognitive Neuroscience, Trends in Neurosciences, Neuroscience & Biobehavioral Reviews, Brain research reviews and Cerebral Cortex.